Len Ovens <len-ODU3Ot18rIYsV2N9l4h3zg@xxxxxxxxxxxxxxxx> writes: > On Wed, 22 Nov 2017, David Kastrup wrote: > >>> David Kastrup wrote: >>>> I have a Minidisc deck with various digital in- and outputs using >>>> S/PDIF. If you connect another MD deck or a CD player digitally and >>>> record from it, it will faithfully reproduce the titling (not sure about >>>> alphanumeric titles, but at least the starting points of the tracks will >>>> be accurate and reliable and not just based on pauses like when >>>> recording via the analog inputs). >> >> Huh. Is that an ALSA shortcoming? It would seem like something worth >> unifying over several drivers capable of S/PDIF. Oh, and what's the >> deal with Dolby Surround via S/PDIF? That would also need some sort of >> access different to PCM, wouldn't it? > > I know on my ice1712 based D66 it is an interface shortcoming. From > what I can see of s/pdif chip sets the user info is a separate stream > that most interfaces just leave NC. The PCM stream itself does not > have anymore info than an ADC would give (it is the same > connection). So the first thing you need to do is make sure that the > user info actually makes it to the computer with your card. The D66 > (and 1010) does deal with some of these extra bits (consumer/pro, > emph, etc.) but not all... but then it is not a "profesional" > interface. I know broadcast makes use of extra bits and so I would > expect interfaces made for that world to pass them through. I would > check with your card if there is any SW/drivers in the mac/win world > that deals with extra info. Well, I don't know. I am not forced to use the RME Hammerfall Multiface either: I do have a cheap CM106 based card somewhere as well. The question is whether there is anything in the Linux world that would be able to make use of this S/PDIF information for recording purposes if I got it out. I understand that most people just read out CDs without reverting to S/PDIF (and that's obviously faster), but I don't even know if you can then import toc+track labels into, say, Ardour. But in my case, I have to work with minidisks, and I have no computer-accessible drive, just S/PDIF. -- David Kastrup _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
