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POWhy is it impossible to use the Speech Recorder on the Android emulator?
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  1. POWhy is it impossible to use the Speech Recorder on the Android emulator?
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    copied!<p>I am trying to run the Speech Recorder that comes with the Android 2.2 emulator. The problem is that the moment I click the "Record" button:</p> <p><img src="https://i.stack.imgur.com/7v5cZ.png" alt="enter image description here"></p> <p>It aborts with an error message "The application Speech Recorder (process com.android.speechrecorder) has stopped unexpectedly. Please try again."</p> <p><img src="https://i.stack.imgur.com/B9hda.png" alt="enter image description here"></p> <p>The problem is that trying again doesn't help.</p> <p>Now, I searched StackOverflow and I combed the entire Internet and I found many reports of the same problem, without any working solution.</p> <p>My conclusion is that, for some strange reason, the Android emulator is capable of using the Windows audio device for output, but not for input.</p> <p>Why is that?</p> <p>I know that other virtualization software (e.g. VMWare) have no problem using both output and input sections of the host's audio device.</p> <p>Also, if Speech Recorder never worked for the emulator for anyone, why put it there?</p> <p>Surely this has worked for someone. Is there a way to make Speech Recorder work for me, too?</p> <p>I am using Windows XP 32-bit and my AVD is defined with an SD card (mounted upon start).</p> <p><strong>Update</strong>: I followed the suggestion by @Klaus to try and see whether any exceptions are thrown. I did so by simply typing <strong>ddms.bat</strong> at the command line to launch a stand-alone version of DDMS (with a logcat display at the bottom). Sure enough, I receive the following exception upon clicking the "Record" button:</p> <pre><code>03-29 14:16:58.195: ERROR/AudioRecord(303): Could not get audio input for record source 1 03-29 14:16:58.195: ERROR/srec_jni(303): initCheck error -22 03-29 14:16:58.205: DEBUG/SpeechRecorderActivity(303): run audio capture thread 03-29 14:16:58.205: WARN/dalvikvm(303): threadid=8: thread exiting with uncaught exception (group=0x4001d800) 03-29 14:16:58.215: ERROR/AndroidRuntime(303): FATAL EXCEPTION: Thread-9 03-29 14:16:58.215: ERROR/AndroidRuntime(303): java.lang.NullPointerException 03-29 14:16:58.215: ERROR/AndroidRuntime(303): at com.android.speechrecorder.SpeechRecorderActivity$4.run(SpeechRecorderActivity.java:192) 03-29 14:16:58.285: WARN/ActivityManager(59): Force finishing activity com.android.speechrecorder/.SpeechRecorderActivity 03-29 14:16:58.904: DEBUG/dalvikvm(59): GC_FOR_MALLOC freed 13324 objects / 656184 bytes in 197ms 03-29 14:16:59.915: INFO/ARMAssembler(59): generated scanline__00000077:03515104_00000000_00000000 [ 33 ipp] (47 ins) at [0x20db68:0x20dc24] in 1247352 ns 03-29 14:17:05.251: DEBUG/SpeechRecorderActivity(303): stopRecording </code></pre> <p>How do I proceed from here? I didn't write the Speech Recorder app, so I don't know what causes the NullPointerException at SpeechRecorderActivity.java line 192. I believe this has something to do with an earlier logcat message:</p> <blockquote> <p>Could not get audio input for record source 1</p> </blockquote> <p>But the question again is why?</p> <p>Why wasn't it able to "get audio input for record source 1"?</p>
 

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