Re: [Jack-Devel] jack and bluetooth?

On 22/01/12 06:50, Fernando Lopez-Lezcano wrote:
>> That does make sense to use it as an alsa device, but I really
 >> am just wanting to use it as a client. I want to use my internal
 >> sound card, compute audio, and send it out some sort of a bluetooth
 >> client.
>
> You could use (on jack2) alsa_in and alsa_out - I think those are
 > the names, those clients let you connect to a second sound card
 > and do the sample rate conversion for you (if jack is working
 > with two separate sound cards something will have to sample rate
 > convert one of them to exactly match the other's sampling rate).

Along these lines, this page might be useful...

http://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge

The only downside is the constant idle cpu usage sits around 3%
(core i7) which kills battery life on a laptop. Other than that it's
quite a useful Pulse-free technique for desktop audio usage. A bit
of work on the alsa sink to Jack idling problem and packaging it up,
perhaps with a couple of extra fields in qjackctl, would be very
interesting.

1327206950.3909_0.ltw:2,a <4F1B9202.8080203 at renta dot net>