Template:Sampling theory
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Sampling theory
Quantization Error
- Difference between the actual analog value and the quantized digital value due to rounding (or truncating)
aka signal to error ratio
Aliasing
- Error due to under sampling
Nyquist Sampling Rate = 2 * highest frequency
- http://en.wikipedia.org/wiki/Nyquist_rate
- http://www.dsptutor.freeuk.com/aliasing/AD102.html
- http://en.wikipedia.org/wiki/Wagon-wheel_effect
- http://en.wikipedia.org/wiki/Nyquist_frequency
Jitter
- Time synchronization error
Bit Depth
over 24 bit used mainly for internal processing and really high end audio equipment 24 bit Professional recording and internal processing 16 bit CD quality audio (not so good for processing) 8 bit Smaller size used for consumer voice stuff and multimedia