Bytes, To answer your question, I'm using Java.
Two questions for you: 1. Are you testing this on both an emulator and on a real device? You might have problems on one but not the other. In my case, simultaneous record+playback is very choppy on the emulator (I have an Intel Core 2 Duo 1.87GHz), but smoother on my real G1 device. So, just be aware that if the emulator/cpu is too slow for your design, it can cause problems. 2. Are you invoking mAudioRecord.startRecording() as late as possible? I used to have problem with simultaneous record+playback because I would first create and set up AudioRecord and invoke mAudioRecord.startRecording(), then I would create and set up AudioTrack and invoke mAudioTrack.play() afterwards. However, initializing the AudioTrack for playback takes a small amount of time that can cause problems. Even if you are not doing that, perhaps you are doing other tasks that you could relocate before your mAudioRecord.startRecording() call. So, what I'm trying to say is: try to invoke mAudioRecord.startRecording() as late as you possibly can, and try to start consuming the audio data as soon as you possibly can immediately after the startRecording() call. This should also reduce your buffer overflow problems. Hope this helps, -- PJ On Nov 11, 11:22 pm, Bytes <[email protected]> wrote: > PJ & Niko, > > Thanks for your response. > > Yes , whatever you are telling is correct. Using a large buffer will > solve the buffer overflow problem. > > http://groups.google.com/group/android-developers/browse_thread/threa... > > According to above thread (ofcourse, he is using callbacks) and my > personal exp showed me in isolation both recording and playing is fine > but as soon as they combined problems occuring. > > Niko, can you share your feedback after implementing a loopback. > > Once again, Are you guys using C++ or Java ? > > -Bytes -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
