Original issue 20 created by Kaljurand on 2011-12-31T13:33:09.000Z:
The Android documentation says that "44100Hz is currently the only rate that is guaranteed to work on all devices, but other rates such as 22050, 16000, and 11025 may work on some devices".
We currently record in 16kHz which could be the reason why recording completely fails on some devices (e.g. Samsung Galaxy Gio). The solution would be to record in the single officially supported sample rate (44.1kHz) and then downsample the result to the best size/quality sample rate (16kHz).
Kaljurand
commented
9 years ago
Original issue 20 created by Kaljurand on 2011-12-31T13:33:09.000Z:
The Android documentation says that "44100Hz is currently the only rate that is guaranteed to work on all devices, but other rates such as 22050, 16000, and 11025 may work on some devices".
We currently record in 16kHz which could be the reason why recording completely fails on some devices (e.g. Samsung Galaxy Gio). The solution would be to record in the single officially supported sample rate (44.1kHz) and then downsample the result to the best size/quality sample rate (16kHz).
See also:
http://developer.android.com/reference/android/media/AudioRecord.html#AudioRecord(int, int, int, int, int)