void ofxGSTT::addDevice(int deviceId){
deviceIds.push_back(deviceId);
outfiles.push_back(NULL);
smoothedVolume.push_back(0.f);
tLastUpdate.push_back(0);
bRecording.push_back(false);
bRecordingBlocked.push_back(false);
deviceTanscriber.push_back(NULL);
ofDirectory dir;
if(!dir.doesDirectoryExist("tmpAudio/device"+ofToString(deviceId)+"/")){
dir.createDirectory("tmpAudio/device"+ofToString(deviceId));
}
prepareRecording(deviceIds.size()-1);
}
void ofxGSTT::audioIn(float * buffer,int bufferSize, int nChannels, int deviceId){
int deviceIdx=0;
for(int i=0;i<(int)deviceIds.size();++i){
if(deviceIds[i]==deviceId){
deviceIdx=i;
break;
}
}
if(bRecordingBlocked[deviceIdx]){
return;
}
float curVol = 0.0;
// samples are "interleaved"
int numCounted = 0;
//lets go through each sample and calculate the root mean square which is a rough way to calculate volume
vector<float> left;
vector<float> right;
left.assign(bufferSize, 0.0);
right.assign(bufferSize, 0.0);
for(int i = 0; i < bufferSize; i++){
if(nChannels == 1){
curVol += buffer[i] * buffer[i];
numCounted += 1;
}else if(nChannels == 2){
left[i] = buffer[i * 2];
right[i] = buffer[i * 2 + 1];
curVol += left[i] * left[i];
curVol += right[i] * right[i];
numCounted += 2;
}
}
//this is how we get the mean of rms :)
curVol /= (float) numCounted;
// this is how we get the root of rms :)
curVol = sqrt(curVol);
smoothedVolume[deviceIdx] *= 0.9; //TODO settings for this ratio needed
smoothedVolume[deviceIdx] += 0.1 * curVol;
//lets scale the vol up to a 0-1 range
//float scaledVol = ofMap(smoothedVol, 0.0, 0.17, 0.0, 1.0, true);//TODO set by settings!
// float scaledCurVolume = ofMap(curVol, 0.0, 0.17, 0.0, 1.0, true);
bool bActiveVolume = curVol > volumeThreshold;
//TODO revisit: should be in an extra update function?!
unsigned long long tNow = ofGetElapsedTimeMillis();
if(bListen || (bActiveVolume && bAutoListen)){
tLastUpdate[deviceIdx] = tNow;
bRecording[deviceIdx] = true;
}
if(bRecording[deviceIdx]){
if(tNow - tLastUpdate[deviceIdx] > 500){ //TODO magic number, hard coded
bRecording[deviceIdx] = false;
finishRecording(deviceIdx);
prepareRecording(deviceIdx);
}else{
sf_write_float(outfiles[deviceIdx], buffer, bufferSize * nChannels);
}
}
}
void ofxGSTT::audioIn(float * buffer,int bufferSize, int nChannels, int deviceId){
int deviceIdx=0;
for(int i=0;i<deviceIds.size();++i){
if(deviceIds[i]==deviceId){
deviceIdx=i;
break;
}
}
if(bRecordingBlocked[deviceIdx]){//TODO ARRAY
return;
}
float curVol = 0.0;
// samples are "interleaved"
int numCounted = 0;
//lets go through each sample and calculate the root mean square which is a rough way to calculate volume
for(int i = 0; i < bufferSize; i++){
left[i] = buffer[i * 2];
right[i] = buffer[i * 2 + 1];
curVol += left[i] * left[i];
curVol += right[i] * right[i];
numCounted += 2;
}//TODO mehrfachverwendung von left & right - problem
//this is how we get the mean of rms :)
curVol /= (float) numCounted;
// this is how we get the root of rms :)
curVol = sqrt(curVol);
smoothedVolume[deviceIdx] *= 0.9; //TODO settings for this ratio needed
smoothedVolume[deviceIdx] += 0.1 * curVol;
//lets scale the vol up to a 0-1 range
//float scaledVol = ofMap(smoothedVol, 0.0, 0.17, 0.0, 1.0, true);//TODO set by settings!
float scaledCurVolume = ofMap(curVol, 0.0, 0.17, 0.0, 1.0, true);
bool bActiveVolume = scaledCurVolume > volumeThreshold;
//TODO revisit: should be in an extra update function?!
if(bActiveVolume){
timer[deviceIdx]->reset();
timer[deviceIdx]->startTimer();
bRecording[deviceIdx] = true;
}
if(bRecording[deviceIdx]){
if(timer[deviceIdx]->isTimerFinished()){
bRecording[deviceIdx] = false;
finishRecording(deviceIdx);
prepareRecording(deviceIdx);
}else{
sf_write_float(outfiles[deviceIdx], buffer, bufferSize * 2);
}
}
//
// if(deviceId>10){
// delete[] buffer;
// }
}
