Linear pulse-code modulation

Linear Pulse Code Modulation (LPCM) is a format that is a popular choice in the Music Production. It can have up to 8 channels of audio at 48khz or 96khz sampling frequency and 16, 20 or 24 bits per sample. It has a maximum bitrate of a huge 6.144 MB/s.

This audio production technique, without compressing the sound data, simultaneously samples and captures analog signals and transforms them into digital signals. This uncompressed digital audio is the same format as what is used for Music CDs. LPCM has been defined as a part of the DVD standard, but most average DVD players can only support 48KHz/16bit capability. Only relatively more expensive players have built 96kHz/24-bit capabilities.

To start enjoying the benefits of 24-bit/96KHz LPCM audio, you will need to make sure you have the right hardware to support it. For the PC, you will need to have a sound card that fully supports 24-bit/96KHz LPCM. In addition to that, the DVD movie you are playing has to be recorded in 24-bit/96KHz LPCM format (generally these are musicals or concerts).