From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: full-duplex - is it possible with rme32? Date: Fri, 03 May 2002 14:55:23 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: References: <20020502214400.GA2888@localhost> Mime-Version: 1.0 (generated by SEMI 1.14.3 - "Ushinoya") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <20020502214400.GA2888@localhost> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: martin-langer@gmx.de Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Thu, 2 May 2002 23:44:00 +0200, Martin Langer wrote: > > the RME Digi 32 in half-duplex is working so far, but I don't see a solution > for a full-duplex support, because this card is working with one buffer for > recording and playing. > > A driver should write the playing data and read the recording data in one > cycle at the same address. There is no way to separate play/rec. It's just > working in a synchronized way: first get the rec-data and then overwrite it > with play-data, cycle for cycle,... does the capture sample always overwrite the sample to be played? i.e. if the hardware sequence is capture -> playback on the same pointer, then i have no idea how to do full duplex at all. but if the hardware does playback -> capture then there must be no problem. Takashi _______________________________________________________________ Have big pipes? SourceForge.net is looking for download mirrors. We supply the hardware. You get the recognition. Email Us: bandwidth@sourceforge.net