Archived

This topic is now archived and is closed to further replies.

Directshow, how to set volume?

This topic is 4984 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Query for a IBasicAudio interface from the graph builder.


m_pGraphBuilder->QueryInterface( IID_IBasicAudio, reinterpret_cast( &m_pBasicAudio ) )


With this interface you can simply change the volume by doing:

m_pBasicAudio->put_Volume( iVolumeRange[dwVolume] );

Careful, put_Volume uses dB in the range of 0 to -10000. You can also set the panning with put_Balance.
Don''t forget to release the interface again.

Share this post


Link to post
Share on other sites