Return-Path: Message-ID: <430351BD.7090100@xmission.com> From: Brad Midgley MIME-Version: 1.0 To: bluez-devel@lists.sourceforge.net Subject: Re: [Bluez-devel] SBC Fixed Point for A2Dp References: <013e01c5a30a$b9329eb0$050aa8c0@gateway> In-Reply-To: <013e01c5a30a$b9329eb0$050aa8c0@gateway> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net Reply-To: bluez-devel@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ development List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 17 Aug 2005 09:03:25 -0600 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 ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel