Hi Donal, Once you have constructed an AudioRecord instance you can call startRecording and then you can use the various read methods to pull the PCM data out. Likewise once you have constructed an AudioTrack and called play you can use one of the write methods to push the data you got from AudioRecord into the play buffer.
Mike On Jan 21, 3:12 pm, "[email protected]" <[email protected]> wrote: > Hi Micheal, > > Thanks again, > > I now have it recording in PCM format from the mic and saving it to > the sd card and then > playing it back through the ear piece. > > So I just have to look into how to into piping the AudioRecord > straight into the AuditTrack. > > So with the AudioRecord instead of creating a file to save to what > should I look into doing? > > And with the AudioTrack, instead of looking for a file to read in what > should I look into doing? > > Thanks, > Kind Regards, > Donal > > On Jan 21, 1:10 pm, Michael <[email protected]> wrote: > > > Hi Donal, > > > Yeah if you kick the record off and the play, then you can sit in a > > loop reading the data out of Record and putting it into play (on a > > thread other than the UI thread of course). > > > Not 100% sure about the earpiece, but you specify a stream when you > > create the AudioTrack and I think a stream encpsulates audio routing > > and volume amongst possibly other things. > > > If you set the stream to STREAM_VOICE_CALL it might come through the > > earpiece as this is where a call would be routed, although I guess > > that depends on headsets and stuff. > > > Can anyone clarify if I am right? > > > Mike > > > On Jan 21, 11:49 am, "[email protected]" <[email protected]> wrote: > > > > Hi Mike, > > > > Thanks for the prompt reply. > > > > I was looking at the AudioRecord class but had somehow missed the > > > AudioTrack class, > > > > thanks for pointing it out. > > > > From looking at the classes I think what I have to do is read the > > > recording data and put it straight into a streamed > > > AudioTrack, would I be correct in saying that? > > > > And then is it possible to send it to the earpiece? > > > > Thanks again, > > > > Donal > > > > On Jan 21, 11:36 am, Michael <[email protected]> wrote: > > > > > AudioRecord and AudioTrack are the classes you need. > > > > > If you use them in streaming mode then you can pipe data out of > > > > AudioRecord straight into AudioTrack and you should be able to acheive > > > > the desired effect. > > > > > I have done something similar, but without the delay. > > > > > Mike > > > > > On Jan 21, 11:28 am, "[email protected]" <[email protected]> wrote: > > > > > > Hi all, > > > > > > I was wondering is it possible with Android to record from the mic and > > > > > play the sound back out the earpiece with just a 1 second delay? > > > > > > I have seen the tutorials and can currently record from the mike and > > > > > save a 3gp file to the sd card. > > > > > > However is it posssible to record and say stream the audio straight to > > > > > the ear piece with just a 1 - 2 second delay? > > > > > > If so how would I go about doing this? > > > > > > Would I need to record from the mic and save it to a file and then > > > > > repaly to the ear piece? and continually do this? > > > > > > Or would it be possible to record from the mic and stream it directly > > > > > to the ear piece with just a slight delay? > > > > > > Any help, info or directions to tutorials would be greatly > > > > > appreciated, > > > > > > Thanks in advance
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