Hi,
I am new to Audio module and new to Android.
I am getting the following error when I start "Voice Search"
application.
#########################
W/InputManagerService( 965): Window already focused, ignoring focus
gain of: com.android.internal.view.IInputMethodClient$S8
D/dalvikvm( 1196): GC_EXPLICIT freed 1145 objects / 53992 bytes in
80ms
I/ActivityManager( 965): Starting activity: Intent
{ act=android.intent.action.MAIN
cat=[android.intent.category.LAUNCHER] }
I/ActivityManager( 965): Displayed activity
com.google.android.voicesearch/.RecognitionActivity: 539 ms (total 539
ms)
I/AudioService( 965): AudioFocus requestAudioFocus() from
android.media.audiomana...@43f1eb48
I/MicrophoneInputStream( 1196): Starting voice recognition with audio
source VOICE_RECOGNITION
W/AudioHardwareInterface( 919): getInputBufferSize bad sampling rate:
16000
D/ALSAModule( 919): open called for devices 00040000 in mode 0...
E/ALSALib ( 919): external/alsa-lib/src/pcm/pcm.c:2210:
(snd_pcm_open_noupdate) Unknown PCM AndroidCapture
I/ALSAModule( 919): Initialized ALSA CAPTURE device default
D/AcousticsModule( 919): Acoustics set_params stub called with 0.
W/AudioHardwareInterface( 919): getInputBufferSize bad sampling rate:
16000
E/AudioRecord( 1196): Recording parameters are not supported:
sampleRate 16000, channelCount 1, format 1
E/AudioRecord-JNI( 1196): Error creating AudioRecord instance:
initialization check failed.
E/AudioRecord-Java( 1196): [ android.media.AudioRecord ] Error code
-20 when initializing native AudioRecord object.
W/GoogleRecognitionService( 1196): Audio problem
W/GoogleRecognitionService( 1196): java.lang.IllegalStateException:
not open
W/GoogleRecognitionService( 1196): at
com.google.android.voicesearch.endpointer.MicrophoneInputStream.<init>(Microphone)
W/GoogleRecognitionService( 1196): at
com.google.android.voicesearch.GoogleRecognitionService.setupMicrophoneInputStrea)
W/GoogleRecognitionService( 1196): at
com.google.android.voicesearch.GoogleRecognitionService.setupMicrophone(GoogleRec)
W/GoogleRecognitionService( 1196): at
com.google.android.voicesearch.GoogleRecognitionService.startRecognitionInternal()
W/GoogleRecognitionService( 1196): at
com.google.android.voicesearch.GoogleRecognitionService.access
$000(GoogleRecognit)
W/GoogleRecognitionService( 1196): at
com.google.android.voicesearch.GoogleRecognitionService
$1.handleMessage(GoogleRec)
W/GoogleRecognitionService( 1196): at
android.os.Handler.dispatchMessage(Handler.java:99)
W/GoogleRecognitionService( 1196): at
android.os.Looper.loop(Looper.java:123)
W/GoogleRecognitionService( 1196): at
android.os.HandlerThread.run(HandlerThread.java:60)
W/AudioPolicyManagerBase( 919): getOutput() could not find output for
stream 3, samplingRate 0, format 0, channels c, flags0
E/MediaPlayer( 1196): error (-19, 0)
E/MediaPlayer( 1196): Error (-19,0)
D/dalvikvm( 1040): GC_EXPLICIT freed 1822 objects / 107272 bytes in
89ms
#####################################################
As per my understanding, the sample rate that the Voicesearch
Application is trying to set is not being supported by the
AudioHardwareInterface module:
AudioHardwareInterface( 919): getInputBufferSize bad sampling rate:
16000
Even in the code the function(in AudioHardwareInterface.cpp) is
returning error if the sample rate any other value other than 8000:
##############################
size_t AudioHardwareBase::getInputBufferSize(uint32_t sampleRate, int
format, int channelCount)
{
if (sampleRate != 8000) {
LOGW("getInputBufferSize bad sampling rate: %d", sampleRate);
return 0;
}
if (format != AudioSystem::PCM_16_BIT) {
LOGW("getInputBufferSize bad format: %d", format);
return 0;
}
if (channelCount != 1) {
LOGW("getInputBufferSize bad channel count: %d",
channelCount);
return 0;
}
return 320;
}
########################################
Not able to understand why this restriction on SampleRate/channelCount
is there in the hardware Interface layer
Are we expected to change this code to suit our hardwares.Can some one
help me in resolving this error.
Thanks in Advance.
Regards,
Satya
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