I've spent several hours trying to record audio on android-sdk- windows-1.0_r1 and emulator, and surfing for information that would tell me how to do it, or that it can't be done. Posts like this one suggest it can be done. When I run the code in this post under the Eclipse debuger and the emulator, I get a runtime exception:
10-23 17:58:18.001: ERROR/AMS(196): java.lang.RuntimeException: start failed. 10-23 17:58:18.001: ERROR/AMS(196): at android.media.MediaRecorder.start(Native Method) I have included the RECORD_AUDIO permission in the Androidmanifest.xml file, as Lurky suggested on Oct.9 I've also found information that says one can not record audio using the emulator. For example on this page http://code.google.com/android/toolbox/apis/media.html page, contains the following statement "While the emulator obviously doesn't have hardware to capture and record audio and video ..." While is statement is not true in the real world sense (for example my laptop PC has a bulit-in microphone that many shareware applications can use), perhaps the Android emulator is not able to use it? Can someone from Google confirm or deny this statement? Sigh... I've also noted that the sample code from the web page whose URL is above does not even compile in SDK v.1. This is unfortunate, given the scarcity of information about this promising platform. If anyone has a working example of recording audio (emulator or actual device), please post it here! For reference, my code (that get the ruintime exception shown above) is: recorder = new MediaRecorder(); recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder.setOutputFile("AudioOut.3gp"); recorder.prepare(); recorder.start(); // The runtime exception is throw here. and my permission is: <uses-permission android:name="android.permission.RECORD_AUDIO"></ uses-permission> Thanks in advance, Jim On Oct 9, 11:15 pm, "[EMAIL PROTECTED]" <guang.zhou. [EMAIL PROTECTED]> wrote: > You may do the following two points before therecord. > > 1. set the permission for RECORD_AUDIO in Androidmanifest.xml. > 2. simulate the sdcard. > > Theaudiofile should be stored in the sdcard. > > On Oct 9, 4:45 pm, Lurky <[EMAIL PROTECTED]> wrote: > > > Hi, All > > I needrecordvoice on the simulator and playback it. I wrot my > > code according the example in the documents: > > > A common case of using MediaRecorder torecordaudioworks as > > follows: > > > MediaRecorder recorder = new MediaRecorder(); > > recorder.setAudioSource(MediaRecorder.AudioSource.MIC); > > recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); > > recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); > > recorder.setOutputFile(PATH_NAME); > > recorder.prepare(); > > recorder.start(); // Recording is now started > > ... > > recorder.stop(); > > recorder.reset(); // You can reuse the object by going back to > > setAudioSource() step > > recorder.release(); // Now the object cannot be reused > > > My code created theaudiofile, but there isn't anyaudiodata in > > it. > > Would you give me a completed demo code for how to use > > MediaRecorder ? > > > Thanks! --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
