Android- Buffer size when recording

Question

I have question regarding the buffer size. I want to record an audio and save it as WAV. Im' using AudioRecord. I have two questions:

First, what is the equation for the buffer size? I know that we can just use AudioRecord.getMinBufferSize(x, y, z). But I just want to know how it is really computed.

Secondly, how to decide that you have the right buffer size?

Since my application is all about recoding audio, I need to have a bigger buffer size, but not big enough. I want to have a biger buffer size for cases that the CPU might be distracted.

Thanks for your knowledge. よろしくおねがいします！

i saw this post.. i was a bit confused, but know i get it. so this is the answer to my second question. but what about the first question? — sftdev, Jun 21 '13 at 08:22

score 0 · Answer 1 · answered Jun 21 '13 at 08:33

0

http://developer.android.com/reference/android/media/AudioTrack.html#getMinBufferSize(int, int, int)

getMinBufferSize() is the minimum buffer size required for successful creation of an Audio Track object in MODE_STREAM.

answered Jun 21 '13 at 08:33

ashwin153

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also, the link is for AudioTrack – sftdev Jun 21 '13 at 08:43

Android- Buffer size when recording

1 Answers1