Hello All,
first the background.
I am considering building a semi-DIY DAC based on CM6631A and, say, PCM1794.
I want to buy a ready made USB -> I2S converter board - like, for example, this
one:
http://www.aliexpress.com/item/CM6631A-24bit-192khz-USB-to-Coaxial-and-Optical-fiber-SPDIF-and-I2S-by-LJM-New-version/2030271910.html
and build the DAC proper and analog output part myself.
So my questions are related to CM6631A as USB -> I2S converter and are the
following:
1) is USB asynchronous mode (i.e. CM6631A board XTALs are used as clock
generators, and computer is a slave, i.e. audio transfer rate is determined by
the XTALs) ?
2) MCLK of I2S can be various multiples of sample rate - is this supported ?
According to what I found on the web Windows driver supports this feature;
3) CM6631A has embedded 8051 controller, so can new CM6631A firmware be loaded
into the board memory under Linux ? CMedia provides such a utility for Windows.
Can anybody provide output of
amixer scontrols
for a CM6631A based card ?
Thanks,
Sergei.
------------------------------------------------------------------------------
Dive into the World of Parallel Programming! The Go Parallel Website,
sponsored by Intel and developed in partnership with Slashdot Media, is your
hub for all things parallel software development, from weekly thought
leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net
_______________________________________________
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user
