micromod
Class Mixer

java.lang.Object
  micromod.Mixer

public class Mixer

extends java.lang.Object

Mixer mixes the output of the individual channels together.

Field Summary

protected int	gain
protected int[]	leftMixBuffer
protected int[]	rightMixBuffer
protected Synthesizer	synthesizer
protected WaveScaler	waveScaler
protected WaveShaper	waveShaper

Constructor Summary

Mixer(Synthesizer synth, WaveShaper shaper, WaveScaler scaler)
Constructor.

Method Summary

int	getGain()
void	output(short[] leftBuffer, short[] rightBuffer, int length, Resampler resampler, boolean snapBack) Mix the specified number of samples from each of the channels into the specified buffers.
void	setGain(int value) Set the current gain value.
void	setWaveScaler(WaveScaler scaler)
void	setWaveShaper(WaveShaper shaper)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

waveShaper

protected WaveShaper waveShaper

waveScaler

protected WaveScaler waveScaler

synthesizer

protected Synthesizer synthesizer

leftMixBuffer

protected int[] leftMixBuffer

rightMixBuffer

protected int[] rightMixBuffer

gain

protected int gain

Constructor Detail

Mixer

public Mixer(Synthesizer synth,
             WaveShaper shaper,
             WaveScaler scaler)

Constructor.

Parameters:

synth - The Synthesizer object that maintains the Channels.

shaper - This may be null. It is the compressor/limiter/clipping algorithm to use.

scaler - This may be null. It is the decimation algorithm to use. Eg dithering.

Method Detail

setWaveShaper

public void setWaveShaper(WaveShaper shaper)

setWaveScaler

public void setWaveScaler(WaveScaler scaler)

getGain

public int getGain()

Returns:

the current gain value. 4096 represents a gain of 1.0

setGain

public void setGain(int value)

Set the current gain value. A parameter of 4096(1.0) guarantees the output never goes above the maximum. The maximum gain is 8.0

output

public void output(short[] leftBuffer,
                   short[] rightBuffer,
                   int length,
                   Resampler resampler,
                   boolean snapBack)

Mix the specified number of samples from each of the channels into the specified buffers.

Parameters:

leftBuffer - The buffer containing the left channel's audio.

length - The number of samples to mix. Should be > 0.

snapBack - If true, the audio will be "rewound" after mixing, so a subsequent identical call to output() will yield the same output. Used for the volume ramping.