Package net.paulhertz.pixelaudio.voices

Interface PASampler

All Known Implementing Classes:

PASharedBufferSampler

public interface PASampler

Backend engine contract for sampler implementations. Allows swapping implementations without changing higher layers.

Method Summary

Modifier and Type	Method	Description
boolean	isLooping()	Returns true if any currently active voice is looping.
int	play(int samplePos, int sampleLen, float amplitude, ADSRParams env, float pitch, float pan)	Play command with all the useful arguments in standard order.
void	setBuffer(float[] buffer)
void	setBuffer(float[] buffer, float playbackSampleRate)
void	setSampleRate(float newRate)
void	stopAll()	Stops all voices immediately.

Method Details

play

int play(int samplePos,
 int sampleLen,
 float amplitude,
 ADSRParams env,
 float pitch,
 float pan)

Play command with all the useful arguments in standard order.

Parameters:

samplePos - index into the buffer to start sampling

sampleLen - expected duration of the audio event, which is expected to return its actual duration

amplitude - maximum amplitude of signal generated by the sampler

env - ADSR style envelope for the entire event

pitch - pitch multiplier, where 1.0f implies pitch is unchanged and all samples are read

pan - location of audio event in stereo field, -1.0f = left, 0.0f = center, 1.0f = right

Returns:

actual duration of event in samples, typically sampleLen + envelope release time

isLooping

boolean isLooping()

Returns true if any currently active voice is looping.

stopAll

void stopAll()

Stops all voices immediately.

setSampleRate

void setSampleRate(float newRate)

setBuffer

void setBuffer(float[] buffer)

setBuffer

void setBuffer(float[] buffer,
 float playbackSampleRate)