IMAudioTrack

Operates a single audio track.

Methods

TrackChannelOrderGet

Gets channel order.

Syntax

void TrackChannelOrderGet( 
   int _bInput,
   int _nChannelIdx,
   out int _pnOrder
)

Parameters

_bInput - input or output flag Possible values: 0 is to get output channel order. 1 is to get input channel order.
_nChannelIdx - original channel index
_pnOrder - new channel order

TrackChannelOrderSet

Changes specific channel order. For example, it can be used to swap left and right channels.

Syntax

void TrackChannelOrderSet( 
   int _bInput,
   int _nChannelIdx,
   int _nOrder
)

Parameters

_bInput - input or output flag Possible values: 0 is to set output channels order. 1 is to set input channels order.
_nChannelIdx - original channel index
_nOrder - new channel order

TrackChannelsGet

Gets the number of input track channels, the number of output channels and first channel index of this track in output stream.

Syntax

void TrackChannelsGet( 
   out int _pnInputChannels,
   out int _pnOutputChannelIdx,
   out int _pnOutputChannels
)

Parameters

_pnInputChannels - number of input channels
_pnOutputChannelIdx - index of first channel of this track in output stream
_pnOutputChannels - number of output channels

TrackChannelsSet

Sets the number of output channels for this track. If output channels number is less than input (for example 5.1 to stereo) then mixes the channels together. To prevent mixing you can mute unneeded channels first.

Syntax

void TrackChannelsSet( 
   int _nOutputChannels
)

Parameters

_nOutputChannels - number of output channels

TrackGainGet

Gets the audio gain for specific channel.

Syntax

void TrackGainGet( 
   int _nChannel,
   out double _pdblGain
)

Parameters

_nChannel - channel index Possible values: 1, 2, 3, ... n are for channel index. -1 is for whole track.
_pdblGain - gain value: Minimum value (mute): -60 dB No changes: 0 Maximum value: +60dB

TrackGainSet

Sets the audio gain for specific channel or whole track.

Syntax

void TrackGainSet( 
   int _nChannel,
   double _dblGain,
   double _dblTimeForChange
)

Parameters

_nChannel - channel index Possible values: 1, 2, 3, ... n are for channel index -1 is for whole track
_dblGain - gain value Minimum value (mute): -60 dB No changes: 0 Maximum value: +60dB
_dblTimeForChange - time period to apply changes in seconds

TrackIsVirtual

Indicates whether the track is virtual.

Syntax

void TrackIsVirtual( 
   out int _pbVirtual,
   out int _pnSourceTrack,
   out string _pbsChannelsSet
)

Parameters

_pbVirtual - virtual track flag Possible values: 1 means that track is virtual. 0 means that track is not virtual.
_pnSourceTrack - source track index
_pbsChannelsSet - channels set string

TrackLoudnessGet

Gets the audio track original and output loudness information.

Syntax

void TrackLoudnessGet( 
   out M_AUDIO_TRACK_LOUDNESS _pAudioLoudnessOrg,
   out M_AUDIO_TRACK_LOUDNESS _pAudioLoudnessOut
)

Parameters

_pAudioLoudnessOrg - input loudness value and number of channels
_pAudioLoudnessOut - output loudness value and number of channels

TrackModeGet

Gets the audio track mode.

Syntax

void TrackModeGet( 
   out eMAudioTrackMode _peMode,
   out int _pnAddToTrack,
   out double _pdblAddGain
)

Parameters

_peMode - mode of the track
_pnAddToTrack - index of track for mixing
_pdblAddGain - gain value for mixing

TrackModeSet

Sets the track mode.

Syntax

void TrackModeSet( 
   eMAudioTrackMode _eMode,
   int _nAddToTrack,
   double _dblAddGain
)

Parameters

_eMode - mode of the track
_nAddToTrack - index of track for mixing
_dblAddGain - gain value for mixing

TrackMuteGet

Indicates whether the channel is muted.

Syntax

void TrackMuteGet( 
   int _nChannel,
   out int _pbMute
)

Parameters

_nChannel - channel index
_pbMute - mute flag Possible values: 1 means that channel is muted. 0 means that channel is not muted.

TrackMuteSet

Mutes the specific channel.

Syntax

void TrackMuteSet( 
   int _nChannel,
   int _bMute,
   double _dblTimeForChange
)

Parameters

_nChannel - channel index
_bMute - mute flag Possible values: 1 is to mute the channel. 0 is to not mute the channel.
_dblTimeForChange - time period to apply changes in seconds

TrackOrderGet

Gets the output order of this track.

Syntax

void TrackOrderGet( 
   out int _pnOrder
)

Parameters

_pnOrder - order value

TrackOrderSet

Sets the output order of this track.

Syntax

void TrackOrderSet( 
   int _nOrder
)

Parameters

_nOrder - order value