digital audio & signal processing (elad gariany)
DESCRIPTION
TRANSCRIPT
Digital Audio &Signal Processing
By Elad Gariany
Who Am I?
Impulse Tracker
Logic Pro
The Vidit Family
Short Demo
Our Technology
Our Vision
Sound
Sound!
Sound
Sound
Real World Sound
Real World Sound
Representing Sound Digitally
Sample Rate & Bit Rate
Waveform
Single Example (Deep Dive)
So… What’s the Problem*
*In a nutshell
Clipping
Nyquist frequency
Sample Rate Limits
Headroom
0-256
0-65,536
0-16,777,216
Volume scale!
World Standards
• PCM: Wave File (8-32Bit / 8000 – 192Khz)
• CD: Audio Disk (16bit / 44.1Khz)
• Pro Audio: (24bit / 192Khz)
Understanding Sound!
Harmonics
Pure Tone
Fundamental Freq. - Tone
Grapher Example
sound sum(1/k*sin(440*k*x),k=1,30)
sound sum(1/(2k-1)*sin(440*(2k-1)*x),k=1,30)
sound sum(1/(2k-1)*(sin(440*(2k-1)*x)+sin(2200*(2k-1)*x)),k=1,30)
sound sin(3*261.63*x) + sin(3*329.63*x) + sin (3*392.00*x)
Signal Processing*!*Finally!
Amp. VS Freq. (Round 2)
DelayReverbChorus
Saturator
CompressorLimiter
ExpenderGate
Vidit Wants You!
• Android Rockstar/Diva
• Video Engineer
• Scale / Backend Expert
Elad GarianyCo-Founder of [email protected]://www.vidit.fm
THANK YOU!