Low latency audio link based on A2DP Bluetooth module?

Hi,
I'm trying to build a cheap digital audio link providing reasonable
sound quality and working directly with the ALSA/jack-audio system
in a Linux embedded system.
I've stated that there are available relatively cheap Bluetooth modules
supporting the A2DP.
One example may be Rayson's BTM730:
http://www.rayson.com/btm730.html
Unfortunately, all I could find was the info, that it offers 16-bit CODEC.
There is nothing about the sampling frequency and transmission latency.
In my application it is essential, that the latency from the audio input in
the remote module to the jackd daemon in the embedded system is not higher than 10ms.
Is the BTM730 suitable for that purpose? Is the whole A2DP system suitable for that?
--
TIA, WZab

On 20 Ott, 00:42, wzab <w...@ise.pw.edu.pl> wrote:

> Unfortunately, all I could find was the info, that it offers 16-bit CODEC.
> There is nothing about the sampling frequency and transmission latency.
> In my application it is essential, that the latency from the audio input in
> the remote module to the jackd daemon in the embedded system is not higher than 10ms.
> Is the BTM730 suitable for that purpose? Is the whole A2DP system suitable for that?

Why are you asking here and not the Raysons' support?

Bye Jack

On Oct 20, 8:55=A0am, Jack <jack4...@gmail.com> wrote:
> > Is the BTM730 suitable for that purpose? Is the whole A2DP system suita=
ble for that?
>
> Why are you asking here and not the Raysons' support?
>
Well, the question about BTM730 is probably better suited for Rayson's
support,
but question about all A2DP class modules is more general.
Anyway I think that the response from people who have really used
things like these
may be more trustworthy...
(Too many times I have received "too optimistic" answers from support
teams, and
then I had too learn that something simply doesn't work because it was
only
"supposed to work" but no one has tested it ;-) )

Well, i have found more info about A2DP
http://www.bluetooth.com/SiteCollectionDocuments/A2DP_SPEC_V12.pdf (it
uses lossy compression
to transmit audio, which makes it useless for may application)
and some remarks about BTM730 itself - it is based on BC05-MM
firmware, which
requires expensive proprietary tools (xIDE). So I don't think it is
suitable
for open source/open hardware project I'm trying to design :-(.
I think, that I'll rather switch to Nordic nRF24Z1 with additional
codec.