~/talk

Exploring the hidden potential of sound data

Talkat HolyJS Piter 2020 · 2020-06-22..06-26· [web-platform, machine-learning]
slides:none on file

Claim: browsers can do acoustic activity recognition by turning microphone data into spectrogram images and running lightweight CNNs. Implementation uses the Web Audio API to capture audio, Teachable Machine / transfer learning and TensorFlow.js to train/export models that classify sounds (minimum demo only needs 8 samples but accuracy improves with more). Prototype builds a live spectrogram, trains in seconds, recognizes brushing, coughing, snapping with some false positives; limits are model size, sample quality, concurrent sounds and privacy.

AI-written summary · about

  1. 0:00Start
  2. 2:56Acoustic Activity Recognition
  3. 4:27What Is Acoustic Activity Recognition
  4. 5:41Microphones
  5. 9:08Visualizations
  6. 9:43The Frequency Bar Graph
  7. 10:23Spectrogram
  8. 11:07Visualizing Sound as a Spectrogram
  9. 22:13Sample Rate
  10. 24:41Transfer Learning
  11. 28:16The Transfer Learning Api
  12. 33:40Demo
  13. 43:03Interactive Storytelling
  14. 43:59Health Tracking
  15. 49:59Quality of the Samples
  16. 51:17Privacy
  17. 51:50Project Alias
  18. 53:40General Purpose Synthetic Sensors
  19. 57:09Collect Audio Data
  20. 1:06:50Do You Know any Application for Recognizing Birds by Their Song
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