Hello,
I'm trying to get volume detection working on 3 different devices, on the first one, everything works as I want it to, on the second device, the initialisation doesn't work, but volume detection works, and on the third device nothing works. I think that it's weird, because on every device I use I've installed the same application, but it works so differently.
I've given this app needed permissions.
Basically, I want the application to "calibrate" whenever the app starts, which works on one device, on other two it get's stuck on 150. After that I want the application to detect the volume and whenever the volume is above the threshold, I want to do something. It works on two devices. I also unload the microphone after stopping the application.
Please tell me if I'm doing something, if it's not my fault, please tell me the workaround, I need to have this app working 'till Friday.
so I initialise my microphone with the following snippet
int freq =44100;
int chan = AudioFormat.CHANNEL_IN_MONO;
int enc = AudioFormat.ENCODING_PCM_16BIT;
int src = MediaRecorder.AudioSource.MIC;
buflen = AudioRecord.getMinBufferSize(freq, chan, enc);
audioRecord = new AudioRecord(src, freq, chan, enc, buflen);
if (audioRecord != null) {
audioRecord.startRecording();
}
buffer = new short[bufferSize];
and I calibrate/set the threshold using this snippet
void calibrate() {
int bufferReadResult = audioRecord.read(buffer, 0, bufferSize);
volume = 100;
for (int i = 0; i < bufferReadResult; i++) {
volume = Math.max(Math.abs(buffer[i]), volume);
}
treshold = volume+50;
}
Microphone unload method
void stop() {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
Thanks for taking your time and helping me out!
