Hi! I tried to write some programs for sound processing recently. Most of it went very well, but some questions about the aplay code (version 0.5.10), which I used as example, remain unanswered. Maybe some of you can help me.
The first is: In the capture_go method a buffer is filled using snd_pcm_plugin_read and than written directly to a wave file. The documentation says that in block mode the driver returns the data for each channel in a separate part of the buffer. But wave files expect the samples to be interleaved. As arecord does indeed work, some of my thoughts must be wrong. But which one is it? And the second one: Why is the size of a fragment choosen to be a power of 2? Why not a multiple of os_page_size * number_of_voices? Is it just the programers preference or is there a good reason for it? Martin _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
