Digital Audio & Signal Processing (Elad Gariany)

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  • 1. Digital Audio &Signal Processing By Elad Gariany
  • 2. Who Am I?
  • 3. Impulse Tracker
  • 4. Logic Pro
  • 5. The Vidit Family
  • 6. Short Demo
  • 7. Our Technology
  • 8. Our Vision
  • 9. Sound
  • 10. Sound
  • 11. Sound
  • 12. Sound
  • 13. Real World Sound
  • 14. Real World Sound
  • 15. Representing Sound Digitally
  • 16. Sample Rate & Bit Rate
  • 17. WaveformSingle Example (Deep Dive)
  • 18. So… What’s the Problem* *In a nutshell
  • 19. Clipping
  • 20. Nyquist frequencySample Rate Limits
  • 21. Headroom 0-256Volume scale! 0-65,536 0-16,777,216
  • 22. World Standards• PCM: Wave File (8-32Bit / 8000 – 192Khz)• CD: Audio Disk (16bit / 44.1Khz)• Pro Audio: (24bit / 192Khz)
  • 23. Understanding Sound
  • 24. Harmonics
  • 25. Pure Tone
  • 26. Fundamental Freq. -Tone
  • 27. Grapher Examplesound sum(1/k*sin(440*k*x),k=1,30) sound sum(1/(2k-1)*sin(440*(2k-1)*x),k=1,30) sound sin(3*261.63*x) + sin(3*329.63*x) + sin (3*392.00*x) sound sum(1/(2k-1)*(sin(440*(2k-1)*x)+sin(2200*(2k-1)*x)),k=1,30)
  • 28. Signal Processing* *Finally!
  • 29. Amp. VS Freq. (Round 2)Compressor Delay Limiter Reverb Expender Chorus Gate Saturator
  • 30. Dynamic RangeThe Loudness War
  • 31. Vidit Wants You!• Android Rockstar/Diva• Video Engineer• Scale / Backend Expert
  • 32. THANK YOU! Elad Gariany Co-Founder of Vidit elad@vidit.fm http://www.vidit.fm