From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcel Holtmann Subject: Support for the Bluetooth subband codec (SBC) Date: Mon, 08 Nov 2004 02:45:54 +0100 Message-ID: <1099878354.6896.80.camel@pegasus> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Hi guys, besides the Bluetooth headset/handsfree support there is another type of audio support. It is the high quality audio (A2DP) for headphones and so on. To include a native support for these devices with every Bluetooth adapter (for example the ones built into your notebook) it is necessary to support the subband codec (SBC) from Philips. The codec description is in the Advanced Audio Distribution Profile (A2DP). I am not an audio expert and far away from doing any codec specific things, but from my understanding the ALSA kernel part should be extended with the SBC type for PCM devices and the library should know how to convert any PCM data into the SBC format so we can use it inside the kernel in a A2DP driver. Any comments? Regards Marcel ------------------------------------------------------- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click