Andrew Gaydenko wrote: > I don't know wich 'x' must be for SPDIF input. 'aplay -l' out is: I have an ice1712 card with similar issues. > card 0: T71Space [Terratec Aureon 7.1-Space], device 1: IEC1724 IEC958 [IEC1724 IEC958] > Subdevices: 1/1 > Subdevice #0: subdevice #0 This is the one that should do the trick? > I have tried plug:iec958 - capture works this way with 16 bit depth. > If I understand well, this way (plug:iec958) we simply add 32-to-16 bit > covertion. And all conersion chain is 16-32-16. Can I be sure such > conversion keeps a stream with bit-to-bit accuracy? Dunno. Also depends on the hardware and driver. As I udnerstand it, data arrives at the card via TOSlink or coax in 16-bit samples. The card accepts the data and offers a 32-bit value to the driver. The driver can, at will, drop teh lowest 16 or 8 bits by specifying the wanted bitdepth. (useful in case we have 24-bit data etc) > I can not test myself as I have not an external SPDIF stream with before-hand known > (with bit-level accuracy) content. Then I'd just play a CD and record at 32-bit, 24-bit and 16-bit. The lower remaining bits (if present) should be all 0. Compare the recordings in a sound editor, do a hexdump, etc. Short recordings will suffice. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
