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  <!-- ═══════════════════════════════════════════════════════════
       BATCH 1 — Homepage, Static Pages, Categories & Tools 1-64
       Total URLs: 88 / Max per batch: 200
       Last updated: 2026-03-22
       ═══════════════════════════════════════════════════════════ -->

  <!-- ─── Homepage ─── -->
  <url>
    <loc>https://frequencydetector.com/</loc>
    <lastmod>2026-03-22</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>

  <!-- ─── Static Pages ─── -->
  <url>
    <loc>https://frequencydetector.com/about/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/contact/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.5</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/privacy/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/terms/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/disclaimer/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>

  <!-- ─── Category Pages (18) ─── -->
  <url>
    <loc>https://frequencydetector.com/categories/frequency-detection/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/music-theory/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/converters/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/acoustic-physics/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/rf-signal-analytics/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/signal-processing/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/wave-generators/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/binaural-brainwave/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/microphone-diagnostics/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/decibels-loudness/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/audio-utilities/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/voice-speech/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/room-acoustics/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/speaker-testing/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/education-training/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/noise-analysis/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/vibration-mechanical/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/categories/ultrasonic-infrasound/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- ─── Frequency & Pitch Detection Tools (23 built) ─── -->
  <url>
    <loc>https://frequencydetector.com/frequency-detector/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/pitch-detector/</loc>
    <lastmod>2026-03-08</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/fundamental-frequency-finder/</loc>
    <lastmod>2026-03-08</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/dominant-frequency-finder/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/harmonic-overtone-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/peak-frequency-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-range-analyzer/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/multi-tone-frequency-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/sub-bass-frequency-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/ultrasonic-frequency-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/infrasound-frequency-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-frequency-analyzer/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-sweep-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-drift-monitor/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vocal-pitch-checker/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/instrument-frequency-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-stability-analyzer/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-comparison-tool/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-error-calculator/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-clipping-detector/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/beat-detection-tool/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/ai-note-detection-tool/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-fingerprint-tool/</loc>
    <lastmod>2026-03-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- ─── Music Theory, Tuning & Notes Tools (28 built) ─── -->
  <url>
    <loc>https://frequencydetector.com/music-note-detector/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/guitar-note-identifier/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/chromatic-tuner/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/piano-note-frequency-finder/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/guitar-resonance-finder/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/chord-finder/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/chord-inversion-tool/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/chord-progression-generator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/scale-generator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/microtonal-scale-generator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/key-signature-finder/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/interval-calculator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/transpose-tool/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/circle-of-fifths/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bpm-tempo-calculator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bpm-tap-tool/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/metronome/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/midi-note-converter/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/tuning-fork-generator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/solfege-note-trainer/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/ear-training-frequency-tool/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/perfect-pitch-trainer/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/a4-tuning-frequency-tool/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/custom-tuning-generator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/equal-temperament-chart/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/just-intonation-calculator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/piano-stretch-tuning-calculator/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/overtone-singing-analyzer/</loc>
    <lastmod>2026-03-15</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <!-- ─── Acoustic Physics & Lab Calculators (12 built) ─── -->
  <url>
    <loc>https://frequencydetector.com/speed-of-sound-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/wavelength-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/room-mode-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/room-frequency-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speaker-placement-optimizer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/reverb-time-designer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/room-ratio-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/first-reflection-point-finder/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bass-trap-calculator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/absorption-coefficient-calculator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/studio-monitor-calibrator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/diffuser-design-calculator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/room-eq-advisor/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/sound-isolation-estimator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bonello-criterion-checker/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/doppler-effect-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/mach-number-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/rt60-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/inverse-square-law-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/beat-frequency-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/db-addition-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/standing-wave-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/harmonic-series-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/acoustic-impedance-calculator/</loc>
    <lastmod>2026-03-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <!-- ─── Core Audio Tools ─── -->
  <url>
    <loc>https://frequencydetector.com/tone-generator/</loc>
    <lastmod>2026-03-06</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- ─── Converters (5 built) ─── -->
  <url>
    <loc>https://frequencydetector.com/hz-to-khz-converter/</loc>
    <lastmod>2026-05-26</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
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    <loc>https://frequencydetector.com/noise-floor-analyzer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/sound-input-monitor/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/echo-detection-tool/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-loopback-tester/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/stereo-channel-tester/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/phase-test-tool/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/appliance-noise-frequency-identifier/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/baby-cry-frequency-analyzer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/mosquito-frequency-test-tool/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/tinnitus-frequency-matcher/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/hearing-range-test/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/decibel-meter/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/sound-pressure-level-calculator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/rms-calculator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/peak-level-analyzer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/loudness-normalization-tool/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/lufs-meter/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/signal-to-noise-ratio-calculator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/gain-calculator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-dynamic-range-meter/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/dynamic-range-compression-visualizer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/compression-frequency-analyzer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-frequency-balancer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/loudness-frequency-analyzer/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-compressor-estimator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-frequency-fatigue-calculator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/loudness-compensation-calculator/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-format-converter/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-trim-tool/</loc>
    <lastmod>2026-05-31</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-speed-changer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-pitch-shifter/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/pitch-correction-preview/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/mono-to-stereo-converter/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-reverser/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/silence-remover/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-duration-calculator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/loop-audio-maker/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-loop-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vocal-formant-frequency-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vocal-frequency-range-tool/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/singing-range-detector/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speech-clarity-tester/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/voice-type-classifier/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/accent-frequency-profiler/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/voice-vibrato-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speech-frequency-spectrogram/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vocal-resonance-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/voice-gender-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vocal-fatigue-detector/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vocal-warmup-frequency-guide/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <url>
    <loc>https://frequencydetector.com/speaker-frequency-response-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/subwoofer-test-tones/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speaker-polarity-checker/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/headphone-frequency-response-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/stereo-imaging-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/crossover-frequency-tester/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speaker-distortion-analyzer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speaker-break-in-tone-generator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speaker-impedance-estimator/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bass-extension-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/tweeter-test-tones/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/channel-balance-tester/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/speaker-sensitivity-tester/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/surround-sound-channel-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-identification-quiz/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/interval-ear-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/perfect-pitch-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/tone-memory-game/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-blindfold-test/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/db-level-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/chord-recognition-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/scale-recognition-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/relative-pitch-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/harmonic-vs-fundamental-quiz/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/eq-frequency-band-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-matching-game/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/tempo-ear-trainer/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/waveform-recognition-quiz/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/audio-skills-progress-tracker/</loc>
    <lastmod>2026-06-01</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-type-identifier/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/environmental-noise-monitor/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-pollution-meter/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/appliance-hum-detector/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-spectrum-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/office-noise-level-checker/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/sleep-environment-noise-checker/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-color-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-exposure-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-level-logger/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/low-frequency-noise-detector/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/hvac-noise-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/traffic-noise-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/noise-comparison-tool/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vibration-frequency-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/rpm-to-hz-converter/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bearing-fault-frequency-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/engine-vibration-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/structural-resonance-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/rotational-imbalance-detector/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/gear-mesh-frequency-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vibration-severity-checker/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/modal-analysis-visualizer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/vibration-spectrum-comparator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/fan-blade-pass-frequency-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/machine-condition-monitor/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/spring-mass-resonance-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <!-- ─── Ultrasonic & Infrasound (Tools) ─── -->
  <url>
    <loc>https://frequencydetector.com/ultrasonic-leak-detector/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/infrasound-monitor/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/animal-hearing-range-simulator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/bat-frequency-detector/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/mosquito-frequency-test/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/ultrasonic-cleaning-frequency-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/seismic-infrasound-viewer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/hearing-age-test/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/ultrasonic-tone-generator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/infrasound-generator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/ultrasonic-spectrum-analyzer/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/parametric-speaker-frequency-calculator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/human-hearing-boundary-mapper/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <!-- ─── Signal Processing, DSP & Hardware (remaining tools) ─── -->
  <url>
    <loc>https://frequencydetector.com/sound-visualization-3d-tool/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-heatmap-generator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/frequency-response-curve-tool/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
  <url>
    <loc>https://frequencydetector.com/resonance-curve-plot-generator/</loc>
    <lastmod>2026-06-02</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>
</urlset>
