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IStandardMpegEncoderProfile::SetAudioVBRMode

Set the bitrate mode (constant or variable) for Audio.

HRESULT SetAudioVBRMode(BitrateMode vbrMode);

Parameters

vbrMode: BitrateMode enumeration value to set as the video VBR mode.

Remarks

You can set the filter to create either Variable Bitrate Audio (VBR), or Constant Bitrate Audio (CBR). When VBR mode is turned on, the Quality setting is used to determine the quality/size of the output and the bitrate value is ignored.

Conversely, when CBR mode is on, the quality setting is ignored, and the audio bitrate is used.

[[The Standard MPEG Encoder – Quality you can rely on]]