what does LPCM mean
In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps. Linear pulse-code modulation (LPCM) is a specific type of PCM where the quantization levels are linearly uniform.This is in contrast to PCM encodings where quantization levels vary as a function of amplitude (as with the A-law algorithm or the Î¼-law algorithm). LPCM has been defined as a part of the DVD (since 1995) and Blu-ray (since 2006) standards. 2  It is also defined as a part of various digital video and audio storage formats (e.g. DV since 1995, AVCHD since 2006).