Return-Path: Message-ID: <4046088B.5070204@soft.uni-linz.ac.at> From: Simon Vogl MIME-Version: 1.0 To: =?ISO-8859-1?Q?Fred_Sch=E4ttgen?= CC: bluez-devel@lists.sourceforge.net, James Courtier-Dutton Subject: Re: [Bluez-devel] sco links References: <4045E93F.4040900@soft.uni-linz.ac.at> <4045F5AF.2000107@superbug.demon.co.uk> <200403031717.06139.bluez-devel@schaettgen.de> In-Reply-To: <200403031717.06139.bluez-devel@schaettgen.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 03 Mar 2004 17:32:11 +0100 Fred Sch?ttgen wrote: >On Wednesday 03 March 2004 16:11, James Courtier-Dutton wrote: > > >>Simon Vogl wrote: >> >> >>>hi, >>>can anyone help me with my sco link? in about 50% of cases, the audio >>>data has an offset of one byte, resulting in terrible noise. I think I >>>saw a flag in a packet header somewhere that indicates the number of >>>bytes to skip >>>until the audio data starts -- I looked through the bt specs several >>>times now >>>but can't find it again. Anyone has a clue for this? >>>Simon >>> >>> >>The terrible noise will be lost interrupts >> >> > >I have also noticed that problem. When I just tried with hstest, 2 out of 5 >tries were noise, the rest was perfect. >I don't think is has anything to do with interrupts, because the the problem >lasts for the whole duration of the connection or it doesn't appear at all. >Also could I work around that problem somewhat in an own application by >guessing the byte order of the 16-bit audio samples. So I also think that >there is something wrong with some offset. > > > I think too that it corresponds to an alignment problem, as the noise energy corresponds what I would expect as the audio signal Simon -- _______________________________________________________________________ Dr. Simon Vogl Institut f?r Pervasive Computing, Johannes Kepler Universit?t Linz Altenberger Stra?e 69, A-4040 Linz, Austria Tel: +43 732 2468-8517, Fax: +43 732 2468-8426 mailto: vogl@soft.uni-linz.ac.at, http://www.soft.uni-linz.ac.at/ ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel