The 16-bit PCM format used by the objects is 16-bits per sample, PCM, twos complement format with the most-significant byte (MSB) first. The 16-bit PCM format is the easiest to manipulate when converting sampling rates or adding other special effects, so many of the audio filter objects either have 16-bit PCM as a source or destination format. The following diagram illustrates how the audio data flows through the audio filter objects:
For example, to convert audio data from A-law to 16-bit PCM, do the following:
Sample programs using filter objects are located in UMS install directory.
For introductory information, see Programming with Audio Filter Objects.