BASS_ATTRIB_MIDI_TRACK_VOL attribute

The volume level of a track in a MIDI stream.

BASS_ChannelSetAttribute(
    HSTREAM handle,
    BASS_ATTRIB_MIDI_TRACK_VOL + track,
    float volume
);

Parameters

handle	The MIDI stream handle.
track	The track to set the volume of... 0 = first track.
volume	The volume level... 0 = silent, 1.0 = normal/default, above 1.0 = amplification.

Remarks

The volume curve used by this attribute is always linear, eg. 0.5 = 50%. The BASS_CONFIG_CURVE_VOL config option setting has no effect on this.

Changes can be made at any time, but the effect of changes during playback may not be heard instantaneously due to buffering.

This attribute can also be used to count the number of tracks in a MIDI file stream. MIDI streams created via BASS_MIDI_StreamCreate do not have any tracks.

Example

Count the number of tracks in a MIDI stream.

int tracks = 0;
float dummy;
while (BASS_ChannelGetAttribute(handle, BASS_ATTRIB_MIDI_TRACK_VOL + tracks, &dummy))
    tracks++;

BASS_ATTRIB_MIDI_TRACK_VOL attribute

Parameters

Remarks

Example

See also