#Processing sound reference how to

In each case, the controls are all accessed through methods of the Line interface.īecause the Mixer interface extends Line, the mixer itself can have its own set of controls.

A mixer used for audio playback might have sample-rate controls on its source data lines. For example, a mixer used for audio capture might have an input port with a gain control, and target data lines with gain and pan controls. This page discusses the first technique in greater detail, because there is no special API for the second technique.Ī mixer can have various sorts of signal-processing controls on some or all of its lines.

If the kind of processing you need isn't provided by the mixer or its lines, your program can operate directly on the audio bytes, manipulating them as desired.

Typical controls supported by mixers and lines include gain, pan, and reverberation controls.

You can use any processing supported by the mixer or its component lines, by querying forĬontrol objects and then setting the controls as the user desires.

There are two ways to apply signal processing: This page discusses the Java Sound API features that provide these kinds of signal processing. The user might want it to sound louder, quieter, fuller, more reverberant, higher or lower in pitch, and so on. Sometimes, however, you want to be able to modify the signal. The implicit goal has been to deliver samples as faithfully as possible, without modification (other than possibly mixing the samples with those from other audio lines).

#Processing sound reference how to

Previous sections have discussed how to play or capture audio samples.