From: "Roberto LA RAGIONE" <rlr@bitween.com>
To: <bluez-devel@lists.sourceforge.net>
Subject: Re: [Bluez-devel] SBC Fixed Point for A2Dp
Date: Wed, 17 Aug 2005 16:56:46 +0200 [thread overview]
Message-ID: <05fb01c5a33b$e3cc6b70$050aa8c0@gateway> (raw)
In-Reply-To: 430351BD.7090100@xmission.com
where I can get the latest version ? Thanks Roberto
----- Original Message -----
From: "Brad Midgley" <bmidgley@xmission.com>
To: <bluez-devel@lists.sourceforge.net>
Sent: Wednesday, August 17, 2005 5:03 PM
Subject: Re: [Bluez-devel] SBC Fixed Point for A2Dp
> Roberto
>
> > I have read some transcoding to SBC fixed point somewhere , do you know
> > where become available ? We are working on a mobile version of A2DP with
> > headphones for Symbian and we would like to port this part of code
> > to mobile and deliver the library under LGPL
>
> I hope you are able to help us with this. We currently have no
> implementation. Victor Shcherbatyuk has been tinkering with fixed point
> but was getting noisy audio last I heard and has not contributed
> anything yet.
>
> If you look in sbc/sbc.h, you'll see some fixed point functions like
> fxmult and conversion functions. Currently, the precision is set to 20
> bits. This is probably not enough, but after you change it to get more
> precision, the fixed point tables in sbc_tables_f.h need to be
> regenerated; build gen_fixed.c by hand and run
>
> ./gen_fixed > sbc_tables_f.h
>
> to do that.
>
> Can I help in any other way?
>
> thanks!
> Brad
>
>
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next prev parent reply other threads:[~2005-08-17 14:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-17 9:04 [Bluez-devel] SBC Fixed Point for A2Dp Roberto LA RAGIONE
2005-08-17 15:03 ` Brad Midgley
2005-08-17 14:56 ` Roberto LA RAGIONE [this message]
2005-08-17 15:16 ` Brad Midgley
2005-08-17 18:02 ` Victor Shcherbatyuk
2005-08-17 18:52 ` Roberto
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