Help


from Wikipedia
« »  
Other types of lossy compressors, such as the linear predictive coding ( LPC ) used with speech, are source-based coders.
These coders use a model of the sound's generator ( such as the human vocal tract with LPC ) to whiten the audio signal ( i. e., flatten its spectrum ) prior to quantization.
LPC may also be thought of as a basic perceptual coding technique ; reconstruction of an audio signal using a linear predictor shapes the coder's quantization noise into the spectrum of the target signal, partially masking it.

2.112 seconds.