On Friday 12 February 2010 05:00:52 Marcel Rieux wrote: > On Thu, Feb 11, 2010 at 8:40 PM, Marko Vojinovic <vvmarko@xxxxxxxxx> wrote: > > On Thursday 11 February 2010 22:23:34 Marcel Rieux wrote: > > Do your headphones support digital audio? I've never seen any headphone > > model that has an integrated digital-to-analog converter (the so-called > > DAC), and I also believe such a thing would require some power to operate > > (batteries?). > > > > You won't hear anything if you try to use standard headphones or speakers > > on a digital-out jack. > > According to Wikipedia: > > The term "digital" or "digital-ready" is often used for marketing > purposes on speakers or headphones, but these systems are not digital > in the sense described above. Rather, they are conventional speakers > intended for use with digital sound sources (e.g., optical media, MP3 > players, etc). > > http://en.wikipedia.org/wiki/Loudspeaker#Digital_speakers > > So, if digital output depends on digital speakers or headphones, it > seems digital output doesn't exist. > > Still, digital sound exists... it seems. I don't understand what are you trying to say. That wikipedia article was about the digital speaker design, which failed as a concept. You should keep in mind that there is a difference between digital audio (as in digital transfer of audio data) and digital speakers (as a design for loudspeaker hardware, different from ordinary speakers). In order to play digital audio, you need a device which would accept the digital audio signal from a computer, convert it to analog, amplify and send to analog speakers. If you want to listen to digital audio via headphones, such a device should be built into the headphones along with the speakers themselves. I haven't seen any model of headphones which has this extra hardware. > > Rather, open a terminal and start pavucontrol (if you use pulseaudio, and > > I think it's a good idea). Then go to "output devices" tab (I see no > > "hardware" anything in pavucontrol either), and click on the "port" > > chooser. > > I have no port chooser. all I can do under Input is move the Front > Left and Right sliders, which slide as a pair, not independantly. Are you looking at pavucontrol? What version of Fedora do you use (F12 here)? I have pavucontrol-0.9.10-1.fc12.x86_64. > If Wikipedia is right, and that's also what I thought, plugging the > headphones in the computer should do it. It doesn't, for digital. As I explained, ordinary headphones just don't reproduce digital audio signal by themselves. It just isn't supposed to work that way. > > And what is being > > used as a digital-out jack depends on the details of your sound card, > > I don't have a sound card. I have an integrated sound chip. Regardless. In case it is integrated, I would expect to see the digital-out jack on the motherboard --- an orange female RCA jack, labelled "S/PDIF", alongside with all other motherboard jacks (keyboard, mouse, USB, etc...). If you don't have one, maybe some other jack is used (look it up in the motherboard manual), or you need to install a small kit with the jack and a cable which connects to internal S/PDIF connector on the motherboard (the one that you used for connecting to video card). These kits should be available in computer stores, I guess. > <https://bugzilla.redhat.com/show_bug.cgi?id=499524> I don't see anything in this bug report that is relevant to you. Cameron apparently had issues with the ALSA driver for his Intel audio hardware. And this was in the F10 time. HTH, :-) Marko -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
