Hi,
I have a pair of HP bluetooth headphones and I've done some testing with them
together with the btsco/a2play project. The bottom line is that they do work,
I've got stereo sound, but there is a problem with the timing. It is
significantly related to how well the bluetooth reception is. I get the best
results around an lq of 207 (hcitool lq BDDR).
I've had contact with Brad Midgley before and he recommend to post this issue
here. I am not a coder, but I've some basic understanding of C/C++, that's
about it. I wouldn't even know where to look for the timing related code.
I'd like to offer to test any new code.
Thanks,
Manuel
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Guylhem
> I recommand keeping standalone sbc encoder and a2play, at least for
> those who want to use such headphones with linux PDAs (I do !)
the problem here is there is one way to fix timing issues in a2play and
a different solution for timing issues in an alsa userspace plugin. if
it's important to someone, it will be maintained of course.
i've been hoping a company would see potential in this stuff and throw
in some resources. during the .com boom it would have happened :(
> BTW I did report somes bug and proposed fixes when I was compiling
> with gcc 2.95 for ARM. Did they make it in?
i think so. check cvs to see if it all looks good.
thanks
brad
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Hi Guylhem,
> > the goal will be to go for a direct ALSA plugin, but my Aiptek is not
> > really conforming to the A2DP specification. This means that I don't
> > have any headphone to really work with and thus I can't solve this
> > issue.
>
> I recommand keeping standalone sbc encoder and a2play, at least for
> those who want to use such headphones with linux PDAs (I do !)
we will see, but the goal should be still an integration into the sound
system. And this is ALSA at the moment.
> BTW I did report somes bug and proposed fixes when I was compiling
> with gcc 2.95 for ARM. Did they make it in?
I haven't seen any. Resend them.
Regards
Marcel
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On Sunday, 27 March 2005 at 5:39:47 (+0200), Marcel Holtmann wrote:
> the goal will be to go for a direct ALSA plugin, but my Aiptek is not
> really conforming to the A2DP specification. This means that I don't
> have any headphone to really work with and thus I can't solve this
> issue.
I recommand keeping standalone sbc encoder and a2play, at least for
those who want to use such headphones with linux PDAs (I do !)
BTW I did report somes bug and proposed fixes when I was compiling
with gcc 2.95 for ARM. Did they make it in?
--=20
Bien =E0 vous - Best regards,
Guylhem P. Aznar
--=20
*@externe.net http://externe.n=
et
P=E9rim=E9/Deprecated: @oeil.qc.ca, @metalab.unc.edu, @ibiblio.org, @7=
un.org
GPG: 92EB37C1 DD11C9C9 20519D01 E8FA1B11 42975AF7 http://externe.net/pubk=
ey
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Marcel,
If I wouldn't be a bit short on cash right now, I'd donate a pair of HP
headphones to the project. They are only about $99 here in the US... but I
really can't afford that right now... maybe in a couple of weeks...
Manuel
On Saturday 26 March 2005 10:39 pm, Marcel Holtmann wrote:
> Hi Manuel,
>
> > I have a pair of HP bluetooth headphones and I've done some testing with
> > them together with the btsco/a2play project. The bottom line is that they
> > do work, I've got stereo sound, but there is a problem with the timing.
> > It is significantly related to how well the bluetooth reception is. I get
> > the best results around an lq of 207 (hcitool lq BDDR).
> > I've had contact with Brad Midgley before and he recommend to post this
> > issue here. I am not a coder, but I've some basic understanding of C/C++,
> > that's about it. I wouldn't even know where to look for the timing
> > related code. I'd like to offer to test any new code.
>
> the goal will be to go for a direct ALSA plugin, but my Aiptek is not
> really conforming to the A2DP specification. This means that I don't
> have any headphone to really work with and thus I can't solve this
> issue.
>
> Regards
>
> Marcel
>
>
>
>
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Hi Manuel,
> I have a pair of HP bluetooth headphones and I've done some testing with them
> together with the btsco/a2play project. The bottom line is that they do work,
> I've got stereo sound, but there is a problem with the timing. It is
> significantly related to how well the bluetooth reception is. I get the best
> results around an lq of 207 (hcitool lq BDDR).
> I've had contact with Brad Midgley before and he recommend to post this issue
> here. I am not a coder, but I've some basic understanding of C/C++, that's
> about it. I wouldn't even know where to look for the timing related code.
> I'd like to offer to test any new code.
the goal will be to go for a direct ALSA plugin, but my Aiptek is not
really conforming to the A2DP specification. This means that I don't
have any headphone to really work with and thus I can't solve this
issue.
Regards
Marcel
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