molim vas ako neko zna nesto o procesiranju audi u javi???
programiranje mi nije jaca strana ali se trudim nesto da naucim 
imam slijedeci problem. Pravim player u javi. tacnije pod JMF. trenutno sam napravio player. Teba da moze da pusta streaming rtp da cita iz fajla ali ono sto ne mogu da nadem je kako da pustim fajl a preko njega neki efekat. Napravio sam klasu efekat i nakon sto sam ispitao podrazene ulazne i izlazne formate, ucitao kontrole (kojima upravljamo iz GUI-a) stigao sam do
srca efekta. metode process (Buffer in , Buffer out) u njoj se sve odigrava a ja ne razumijem citav tok stvari.
ovako to izgleda unutar metode
izvinite ako je nekom nejasan komentar, mijesao sam sta sam stigao ne bi li shvatio o cemu se radi
[code]/**
* procesing
* ---------------------------------------------------------------------------------------------------------------------------
public int process(Buffer input, Buffer output)
* Performs the media processing defined by this codec.
*
* Parameters:
* input - The Buffer that contains the media data to be processed.
* output - The Buffer in which to store the processed media data.
* Returns:
* BUFFER_PROCESSED_OK if the processing is successful. Other possible return codes are defined in PlugIn.
*/
public int process(Buffer input, Buffer output)
{
//
//\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
// variable inData ima tip >>ist array<< i cuva byte-Elemente
byte[] inData = (byte[]) input.getData(); //Data - The object that actually holds the media data chunk for this Buffer. //getData()- Gets the internal data object that holds the media chunk contained in this Buffer.
int offset = input.getOffset(); // For array data type, points to the starting point (offset) into the array where the valid data begins.
//length je jedna public final int varijabla koja ima ili pozitivnu vrijednost ili 0. Velicinu ne mozemo poslije mijenjati
int length = input.getLength();//For array data type, states how many samples are valid in the array.
//\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
output.setFormat(this.outputFormat); //Format - The Format of the chunk of data in this Buffer. // setFormat() - Set the Format of the data in this Buffer.
outputFormat = (AudioFormat) output.getFormat();
output.setFlags(input.getFlags()); //flags [protected int flags]. A flag mask that describes the boolean attributes enabled for this Buffer. //This mask is set to the logical sum of all of the flags that are set.
ensureByteArraySize(output, length);
byte[] outputData = (byte[]) output.getData();
outputFormat = (AudioFormat) output.getFormat();
int numOfChannels = this.outputFormat.getChannels();
int inChannels[] = new int[numOfChannels];
int outChannels[] = new int[numOfChannels];
int sampleEffect[] = new int[numOfChannels];
int numOfSamples = length / (2 * numOfChannels);
int inputIndex = offset;
int outputIndex = 0;
int inLength = input.getLength();
int outLength = inLength;
int outOffset = output.getOffset();
// Lesen von AudioInputSream (File wurde zuvor erfolgreich geladen)
byte[] screamData = new byte[inLength]; //ovdje mu znamo duzinu
try{
pssScream.read(screamData, 0, inLength); //arrey + pocni od pocetka pa do kraja
}
catch (Exception E) {}
for (int i = 0; i < numOfSamples; i++) {
for (int k = 0; k < numOfChannels; k++) {
inChannels[k] = readSample(inData, inputIndex);
sampleEffect[k] = readSample(screamData, inputIndex);
inputIndex += 2;
}
// ucito je za jedan pa za drugi kanal i to samo za jedan sample
// Frequenz
// Frequenz
// if ((outputIndex == inLength) && (reachedFreq < frequency)) {
outputIndex = 0;
// reachedFreq++;
// }
//////////////////////////////////////////////////////////////
for (int m = 0; m < inChannels.length; m++) {
//sampleEffect[m] *= effectSetting.setGain(((float) source.getValue()) / 10);
//sampleEffect[m] *= (float)effectSetting .volume_ / 100; //volume of horn
inChannels[m] += sampleEffect[m]; //mix sound and horn
outChannels[m] = (saturate(inChannels[m])); //inChannels is filled with samples
}
for (int l = 0; l < numOfChannels; l++) {
writeSample(outputData, outputIndex, outChannels[l]);
outputIndex -= 2;
}
}
output.setData(outputData);
output.setLength(outLength);//88200 sto 8800 audio je 44100
output.setOffset(outOffset);
output.setFormat(outputFormat); //kanali
return (BUFFER_PROCESSED_OK);
}[/code]
malo vas zamaram zar ne :))