Re: [alsa-devel] Use of snd_pcm_format_set_silence

Ankhit Vivekananda wrote:

I have an application where in I need to silence the first few samples of the buffer that is read from snd_pcm_readi(). In order to do this, I call the snd_pcm_format_set_silence() providing the same buffer that the snd_pcm_readi() reads to.

1. By doing this, is there going to be a timing delay due to the use of

snd_pcm_format_set_silence()?

That function just modifies memory; it does not affect any PCM device.

2. Is snd_pcm_format_set_silence() the correct function to achieve this

goal or are there better methods?

You already know your sample format; memset(0) might be simpler.

Regards, Clemens