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Finding a Specific Format

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[The feature associated with this page, Audio Compression Manager, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]

An application might have only a partial specification for a format when it needs the full specification. For example, the specification might stipulate an 11-kHz mono, 4-bit ADPCM format, but not the average bytes per second. The application can get the full format without user intervention by using the acmFormatEnum function and specifying flags in the fdwEnum parameter.