[android-developers] Re: Mic audio capture is of poor quality

Problem solved. We didn't know about the android AudioRecord API which can record raw PCM up to 44khz. We ended up using 16-bit 11khz PCM encoded to WAV with the java speech api (we used the Tritonus library). On Jun 3, 4:22 pm, Robert Peterson robby.peter...@gmail.com wrote: As a first step

[android-developers] Recording mic audio during a call

We need to record the mic audio while a user is on a call. Note that we are not trying to record the voice of all the participants on the call (which is dubious for legal reasons), only the voice of the user holding the handset. We wrote an app that uses the AudioRecord API to record the user's

[android-developers] AMR encoding uses 8hz sampling rate?

According to wikipedia, the AMR encoding which is the only option we see for the MediaRecorder API uses a Sampling frequency of 8 kHz/13- bit We are writing a voice recognition application. We have an equivalent app on the iphone which we have found performs best with a sampling rate of 22hz or

[android-developers] Microphone audio capture with emulator is of very poor quality

As a first step toward a speech recognition project, we wrote a simple voice recording application based on the information in this thread: http://groups.google.com/group/android-developers/browse_thread/thread/860b5f346c59f2ca/b94fa1131077321f?lnk=gstq=microphone+emulator#b94fa1131077321f It is

[android-developers] Microphone audio capture with emulator is of very poor quality

As a first step toward a speech recognition project, we wrote a simple voice recording application based on the information in this thread: groups.google.com/group/android-developers/browse_thread/thread/ 860b5f346c59f2ca/b94fa1131077321f?lnk=gstq=microphone +emulator#b94fa1131077321f It is