Topic: question about sample rates

This question is about sample rates - e.g., 44.1 khz or 48 khz (don't confuse this with bitrate).

I listen to Cog on a Mac OS X machine through a USB A/D converter (a Tascam device) which can be set to 44.1 khz or 48 khz. Cog sounds just the same through either setting, no matter whether the file has a 44.1 or 48 khz sample rate. In other words, even if the file sample rate and the USB device's sample rate don't match, everything is fine.

My question is - why? Is Cog performing a sample rate conversion behind the scenes? Or is the system somehow performing the conversion?

Re: question about sample rates

Cog converts the file to the output device's sample rate.

Re: question about sample rates

Cool. Feature suggestion: maybe Cog could have a kind of little red light that comes on when this happens? The reason is that sample rate conversion is a kind of skanky process, so if I'm playing a 48 kHz file I'll get better sound by swithing my USB device to 48 kHz, avoiding the conversion. But I'm not normally conscious that the conversion is happening, so I'm thinking maybe Cog could help by alerting me. smile Thx!

Re: question about sample rates

Last edited by 8dioSound (2010-08-09 13:32:43)