For a HTPC I have thought about using a custom build DAC board, with eg. a philips TDA15** DAC chip which natively accepts data in i2s format. This would allow me to remove the sound board completely.
The reason is twofold; to avoid jitter, and to reduce component count and cost. I think I can eliminate jitter if I use a special crystal / clock with the DAC board, eg. http://www.lcaudio.com/intlcl.htm. See i2s specs at http://www.xiph.org/~jack/ibook/sound/I2sbus.pdf. I could use/build an external DAC, but if I want a 5.1 channel sollution, I would need either 3x spdif outputs and do ac3 decoding in software, or use an external processor, which is expensive. Thus I need two things; a i2s stream serializer, and an alsa driver. Is there an alsa driver for sound over a i2s serializer interface? The only i2s references I can find are for ppc, since the ibook seems to use i2s for audio. A similar attempts, but for an mp3 player; http://www.uclinux.org/ports/coldfire/nettelmp3.html. -- -Torgeir _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
