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Matthias, I posted this yesterday: " http://www.computeraudiophile.com/content/Can-you-get-audio-digital-out-iPad "Submitted by The Computer Au... on Sat, 08/14/2010 - 20:24. Joined: 11/28/2007 .:. Offline .:. Comments: 8508 Hi ajax - I'm a bit confused Hi ajax - I'm a bit confused at what exactly your friend is trying to accomplish. I'm sure it's something very neat but right now I'm lost :~) To answer the question about the iPad outputting digital audio -> The headphone jack is only analog. But the dock connector can output digital audio with the camera connection kit. You can only connect to a 16 bit USB DAC, but at least it's digital out. A good 16 bit DAC for this is the Devilsound / Halide Design DAC." **** But I stand corrected on one count: the Alesis ioDock does not appear to do ANY conversion. While the 30-pin connector DOES carry a digital audio signal (that's what makes it possible to use an HDMI connection to have Hi-Def A/V) apparently the ioDock is using ONLY the analog audio signal. Still haven't' found a definitive answer/source for that, but that's the conclusion I'm getting to on what I'm finding. I suppose that technically you could grab the digital signal off the right pins if you knew how to design the hardware & software to do it…that's a bit beyond me, tho'! Best, Dennis "Who is NOT an audio engineer" http://soundcloud.com/usrsbin http://audiozoloft.com http://usrslashsbin.angrek.com/ On Fri, Dec 16, 2011 at 6:11 AM, Matthias Grob <matilists@gmail.com> wrote: > you may be right, but where do you take that information from, Dennis? > the analog definitely is on the 30pin, too! > > On 15 Dec 2011, at 22:47, Dennis Moser wrote: > >> Analog audio is out of the headphone jack — digital is out of the >> 30-pin … and the Alesis dock is USB only, no Firewire… >> >> Best, >> >> Dennis >> >> http://soundcloud.com/usrsbin >> http://audiozoloft.com >> http://usrslashsbin.angrek.com/ >> >> >> >> On Thu, Dec 15, 2011 at 5:58 PM, Matthias Grob <matilists@gmail.com> >> wrote: >>> no, look, it has analog audio, too: >>> >>> http://pinouts.ru/CellularPhones-A-N/iPhone_connector_pinout.shtml >>> >>> but since it has USB and even Firewire, I suspect the dock uses the >>> digital audio really. >>> >>> On 15 Dec 2011, at 11:47, Dennis Moser wrote: >>> >>>> Andy, >>>> >>>> :D … no worries. I didn't know what the audio was coming off that >>>> 30-pin either. However, this SHOULD answer the question: >>>> >>>> http://www.computeraudiophile.com/content/Can-you-get-audio-digital-out-iPad >>>> >>>> To answer the question about the iPad outputting digital audio -> The >>>> headphone jack is only analog. But the dock connector can output >>>> digital audio with the camera connection kit. You can only connect to >>>> a 16 bit USB DAC, but at least it's digital out. A good 16 bit DAC for >>>> this is the Devilsound / Halide Design DAC." >>>> >>>> So the answer is — if you use the headphone jack, you get ANALOG >>>> audio. If you use anything that plugs into the 30-pin connector, like >>>> the Alesis ioDock, you get digital audio. >>>> >>>> >>> >> >