From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Revell Subject: Re: file.wav -> dsp issue Date: Tue, 30 Nov 2004 16:02:48 -0500 Message-ID: <1101848569.10162.25.camel@krustophenia.net> References: <20041130180410.D498B187F@teufel.hartford-hwp.com> <1101839935.10162.1.camel@krustophenia.net> <20041130200556.9A346188C@teufel.hartford-hwp.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20041130200556.9A346188C@teufel.hartford-hwp.com> Sender: alsa-user-admin@lists.sourceforge.net Errors-To: alsa-user-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: "H.Haines Brown" Cc: alsa-user@lists.sourceforge.net, alsa-devel List-Id: alsa-devel@alsa-project.org On Tue, 2004-11-30 at 15:05 -0500, Haines Brown wrote: > > On Tue, 2004-11-30 at 13:04 -0500, Haines Brown wrote: > > > # cat file.wav > /dev/dsp > > > > > > it seems to play at half speed (pitch is very low, playing speed very > > > slow). > > > > > > Is the command above the best way to do a simple test of sound? Why > > > should sending the file to dsp not play correctly? > > > > No, that is the way to do it with the deprecated OSS API. It seems like > > a convenient, Unixy way to play sounds but there are many problems with > > it. > > > > The ALSA way is "aplay file.wav". Does this work? > > Yes, that worked fine. I find that it plays WAV and VOC, but not MID > and WMA files (just screeches). Thanks. Hmm, my point about the OSS api notwithstanding, seems like cat foo.wav > /dev/dsp should work, if aplay groks the format. It seems to be getting the sample rate wrong. I am cc'ing alsa-devel. What's the sample rate of your .wav file? Do you get the same results with other sample rates? This could be a bug in the OSS emulation layer. Lee ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/