android-audiorecord

I am trying to implement AudioTrack to retrieve audio in my android device for incoming call from IAX but facing exception after some while . private void writeBuff(short[] buf) { try { if (this.track == null) { Log.w("IAX2Audio", "write() without an AudioTrack"); return; } int written = 0; while (written < buf.length) { if (this.track != null) { int res; res = this.track.write(buf, written, buf.length - written); switch (res) { case AudioTrack.ERROR_INVALID_OPERATION: Log.e("IAX2Audio", "Invalid write()"); return; case AudioTrack.ERROR_BAD_VALUE: Log.e("IAX2Audio", "Bad arguments to write()")

According to changes for kitakt 4.4 there were some problems with playing shoutcast streams (those returning "ICY" instead of "HTTP/1.x" response). So solution for kitkat was to reregister "icy" protocol prefix in JVM once before we opened a stream by this: try { java.net.URL.setURLStreamHandlerFactory( new java.net.URLStreamHandlerFactory(){ public java.net.URLStreamHandler createURLStreamHandler( String protocol ) { Log.d( LOG, "Asking for stream handler for protocol: '" + protocol + "'" ); if ("icy".equals( protocol )) return new com.spoledge.aacdecoder.IcyURLStreamHandler(); return null; }

I have written code for recording audio file using AudioRecord and while writing file on SD card i am making two version. Version 1 Recorded file is saved on SD Card as it is. Version 2 I am applying Gain feature on recorded file and saving on SD card. This works awesome on Sony Ericson mobiles.Also audio volume is boost to great extent. But i am struggling to make it work on Samsung Devices. when i play recorded file it sound like Talking Tom :P Initially i thought Samusung device did not like the combinations i have used to create AudioRecorder . So i used following approach in which i loop

I'm attempting to use AudioRecord with AudioSource.VOICE_DOWNLINK on Nexus 5X, Android 7.1 (my own build from AOSP). I'm already past the permissions stage - moved my APK to privileged apps, made an adjustment to AudioRecord in Android source to stop throwing an exception about this source. Now I'm getting empty recording buffers during a phone call. I know that there are a lot of call recording apps, and they work on other devices. I've also seen certain apps that can perform some hack on a rooted N5 and make it work. I wish to achieve the same on Nexus 5X - ANY adjustment is OK for me,

I am using android platform, from the following reference question I come to know that using AudioRecord class which returns raw data I can filter range of audio frequency depends upon my need but for that I will need algorithm, can somebody please help me out to find algorithm to filter range b/w 14,400 bph and 16,200 bph. I tried "JTransform" but i don't know can I achieve this with JTransform or not ? Currently I am using "jfftpack" to display visual effects which works very well but i can't achieve audio filter using this. Reference here help appreciated Thanks in advance. Following is my