how to get 3sn of audio buffer ios

Question

how can I get 3sn of samples of an audio that is being recorded. I have used RemoteIO audiounit and it brings 512 samples and it is 10 milisecond. I need total 3sec of samples? Can you give me an idea how to do it .

here is my another post with details of my code Concatenating Audio Buffers in ObjectiveC

my worst sceneario will be recording the audio in a file then get its samples. I dont want to go with this.

should I use AudioQueue ? Any Advice?

I really need help. thanks

Answer 1

将缓冲区（通过“音频单元”回调提供给您）保存到数组（C数组），并在每512个输入数据样本之后将用于保存数据的数组的索引增加512。

Answer 2

I have append the frames that came with each render like hotpaw2 said. now you can find the detailed codes, how I applied buffers in my this post/question Concatenating Audio Buffers in ObjectiveC

thanks