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Interface quicktime.app.audio.AudioSpec

public interface AudioSpec

Volume values for objects that implement this interface are 0 for silence, 1.0F for unity gain (generally maximum volume for a given object). Values over 1.0 are not guaranteed to result in louder volumes; some objects support overdriving the volume, some do not. If an object does not support a value greater than 1, then it will set the volume to its maximum level.

An object may have a volume level but because it is muted you will not hear anything.

Unmuting an AudioSpec object will set it to its current volume setting. If an object is muted and its volume is changed this will not make the audio object audible, it has to be explicitly unmuted. This is inline with the way most mixing consoles work.

getVolume()

Returns the volume setting (0 is silent, 1 is unity gain)

isMuted()

Returns the current mute status

setMuted(boolean)

Allows the muting of the specific channel.

setVolume(float)

Sets the volume.

 public abstract float getVolume() throws QTException

Returns the volume setting (0 is silent, 1 is unity gain)

 public abstract void setVolume(float val) throws QTException

Sets the volume.

 public abstract boolean isMuted() throws QTException

Returns the current mute status

 public abstract void setMuted(boolean flag) throws QTException

Allows the muting of the specific channel. When unmuted the AudioSpec object will return to its current volume setting.

Parameters:

flag - turn muting on - true or off - false.

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