From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Allamanche Subject: Re: Getting actual sample rate Date: Tue, 10 Jun 2003 19:38:26 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3EE61792.2070702@iis.fhg.de> References: <3EE5FF42.5080107@iis.fhg.de> <20030610171210.GA501@tuba.home> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20030610171210.GA501@tuba.home> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Martin Langer , Paul Davis Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Thanks for feedback, Martin Langer wrote: > On Tue, Jun 10, 2003 at 12:24:21PM -0400, Paul Davis wrote: > >>>I'm using a digital Hammerfall audio card and was wondering how to >> >>which hammerfall? digi9652 or hdsp9652? I think it's an older digi9652, I have to open the PC to check it out >>the ALSA hardware parameter model doesn't include the notion of an >>"external rate". Is this is a design flaw? How to tell the input frequency? Need some additionnal hardware? >>there is no way to differentiate between an ADAT signal at 32/44.1/48 >>kHz and a "bit/channel stream format" at 64/88.2/96 kHz. so we can't >>tell you that. however, on the hdsp series, the "External Rate" >>control (read only) can be used to check the rate. i don't know >>off hand whether it can be used for notifications via blocking on >>read/poll for the control. >> > > > Up to now, I thought ADAT was only defined for 44.1 and 48 kHz, but maybe > I'm wrong in this point. Ok, I believe that the hw doesn't use a restriction in > that point. But are there really any devices that can handle all those rates. I checked it again, ADAT is only defined for 44.1/48 kHz. I mixed it up with the Hammerfall specifications in the manual. The supported frequencies ranges from 32 to 96kHz (SPDIF mode?) Eric ------------------------------------------------------- This SF.net email is sponsored by: Etnus, makers of TotalView, The best thread debugger on the planet. Designed with thread debugging features you've never dreamed of, try TotalView 6 free at www.etnus.com.