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android - AudioRecord - Invalid audio buffer size - Stack ...
https://stackoverflow.com/questions/15633452/audiorecord-invalid-audio-buffer-size
AudioRecord.getMinBufferSize does not support PCM_8BIT (see the AudioRecord source code), and will return ERROR_BAD_VALUE (-2) if you pass a PCM_8BIT format to it. One solution would be to switch to using PCM_16BIT encoding. Another possibility (which I haven't verified whether it works) is to ask for a minimum buffer size based on PCM_16BIT ...
android - AudioRecord: buffer overflow? - Stack Overflow
https://stackoverflow.com/questions/17790630/audiorecord-buffer-overflow
To fix that issue, change the buffer size of AudioRecord to 2 times the minimum buffer size. You can use AudioRecord.getMinBufferSize()static method. This will give you the minimum buffer size to use for your current format. The syntax of getMinBufferSize() method is: public static int getMinBufferSize (
android - Why does AudioRecord.getMinBufferSize return ...
https://stackoverflow.com/questions/4781781/why-does-audiorecord-getminbuffersize-return-error-bad-value-2
I am testing this on a Samsung Galaxy S i9000. int sampleRate = 44100; int bufferSize = AudioRecord.getMinBufferSize (sampleRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_8BIT); It returns -2 ERROR_BAD_VALUE. The native sample rate is 44100Hz, as returned by. AudioTrack.getNativeOutputSampleRate …
AudioRecord - Android SDK | Android Developers
https://www.mit.edu/afs.new/sipb/project/android/docs/reference/android/media/AudioRecord.html
the total size (in bytes) of the buffer where audio data is written to during the recording. New audio data can be read from this buffer in smaller chunks than this size. See getMinBufferSize(int, int, int) to determine the minimum required buffer size for the successful creation of an AudioRecord instance. Using values smaller than getMinBufferSize() will result in an …
AudioRecord.GetMinBufferSize(Int32, ChannelIn, …
https://docs.microsoft.com/en-us/dotnet/api/android.media.audiorecord.getminbuffersize
Returns the minimum buffer size required for the successful creation of an AudioRecord object, in byte units. [Android.Runtime.Register("getMinBufferSize", "(III)I", "")] public static int GetMinBufferSize (int sampleRateInHz, Android.Media.ChannelIn channelConfig, Android.Media.Encoding audioFormat);
Android example - AudioRecord.java - audiorecord ...
https://alvinalexander.com/java/jwarehouse/android/media/java/android/media/AudioRecord.java.shtml
* <p>Upon creation, an AudioRecord object initializes its associated audio buffer that it will * fill with the new audio data. The size of this buffer, specified during the construction, * determines how long an AudioRecord can record before "over-running" data that has not * been read yet.
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