Thread: [solved, mostly] Is tv-out possible with audio i/o?
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demolition is offline demolition
2011-07-07 , 17:26
Posts: 560 | Thanked: 422 times | Joined on Mar 2011
#5
Originally Posted by sjgadsby View Post
The same ring on the A/V plug is used for both video out and mic in. So, if you're actively using the video out, and you don't want to use the internal mic, then Bluetooth and USB, as suggested above, are your remaining options.
That's what I was wondering. Just to confirm I understand correctly:
Q. By plugging in the composite cable, the audio-in is disabled for the display connected to the 3.5mm port (even if screen has microphone capabilities); correct?
Q. Is the microphone built into the N900 disabled when tv-out is in use?

If the internal mic does work when tv-out is in use, then there's no problem because I will be close enough to the mic to use it in one of either normal- or speaker-phone mode. I would just need to retrieve the audio-out from the composite and pipe it to speakers/headphones.
Q. Has anyone tried this?

Alternatively, I could look for a decent BT headset. There seem to be a few HiFi ones to choose from. However, there also appear to be a number of threads claiming there are problems with various BT headsets, including Nokia's own BH-905. How amusing/annoying: searching for "bluetooth headset" in the wiki, there are no useful results, as far as I can see for the N900!
Q. Do problems for BT-headsets persist with the CSSU? And, is there any difference in problem-level between those that do/don't include microphone capability?
Q. Is there likely to be any conflict when using a BT-KB, BT-Mouse and BT headset, all at once with the N900?
- I am aware that input devices are not officially supported but I've had reasonable success with USB input.

I would prefer not to use USB-OTG for audio i/o. Apart from anything else, do Debian-armv7 drivers exist for external sound cards?
Last edited by demolition; 2011-07-07 at 17:29.