From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <43E2BD4E.7060905@purdue.edu> From: Chase Douglas MIME-Version: 1.0 To: bluez-devel@lists.sourceforge.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Subject: [Bluez-devel] Re: btsco occasional loud bursts of static 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: Thu, 02 Feb 2006 21:17:50 -0500 > Chase > > One thing to check is the code we have to accommodate a byte getting > lost. If we don't watch for this, subsequent samples have what should be > a high byte in the low position and vice-versa, so the result is loud > noise for the remainder of the connection. > > I haven't looked closely at this, but it's really baffling to think a > single byte could be lost from a stream of 16-bit samples like that. The > protocol should drop entire samples when the signal is bad--losing *> *half** a sample is a worst-case scenario. > > Brad > > > I have a dlink dbt-120 rev. b4 bluetooth adapter with a motorola hs850 > > and I use btsco to talk with people online. When I have my laptop > > sitting on my lap, everything works fine. However, when I start to walk > > around, the sound transmitted to the other person from my headset will > > have bursts of loud static. I am guessing that this is a problem with > > the connection being worse. I would like to get this resolved, and I can > > do some coding as well. I have a 2 MB hcidump which somewhere near the > > end has the offending sound packets. I can't find any documentation on > > the SCO protocol, so I can't find where the static was. Can anyone point > > me in the right direction? > > > > Thank you, > > Chase Douglas > > > > > > ------------------------------------------------------- > > This SF.net email is sponsored by: Splunk Inc. Do you grep through log > > files > > for problems? Stop! Download the new AJAX search engine that makes > > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 > > _______________________________________________ > > Bluez-devel mailing list > > Bluez-devel lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/bluez-devel > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you grep through log files > for problems? Stop! Download the new AJAX search engine that makes > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 I'd love to hlp in any way I can. I'm not sure where this code is that you wrote of. Could you point me in the right direction? Also, I am going to need some kind of documentation on the sco protocol. Do you know where I could find these? Thanks ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel