how to improve quality?

[cyang812]

Thanks, Very useful tools.

I want to know if have any chance to improve out pcm quality in a simple way.

[fuwenhuai]

I found that resampling 16k of audio data into 8k of data would cause the program to crash. In the following sentence:
for (i = 0; i < len; i++) {
rs->in_buf[rs->in_buf_read + i] = in_buf[rs->in_buf_used + i];
}