I'd like to ensure the ac3/dts passthrough is sent with correct format that involves AES0..3 bits. I'm referring to the Turtlebeach Audio Advantage Micro II card (CM102-A+/102S+ Audio Controller). Commonly the iecset too can be used for that purpose, however it looks for the "IEC958 Playback Default" control entry, which is not reported for this card. Could you give me a short overview of what is responsible for not having this entry for that card: - it's the hardware level (I suppose not as I'd guess the product is ready to deliver spdif compliant stream) - the driver level (default snd-usb-audio is used) - lib level (that the iecset tool is using) - or just the .asoundrc is missing some extra entries Note that sending pcm/ac3/dts streams content via the card is not a problem, but in parallel to the streaming the AES bits must be set by some means. ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_may _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user