Template:Sampling theory

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Sampling theory

Sample process.GIF

sampling process

Quantization Error

Difference between the actual analog value and the quantized digital value due to rounding (or truncating)

aka signal to error ratio



Error due to under sampling
Nyquist Sampling Rate  = 2 * highest frequency


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