Date: Tue, 14 Feb 1995 13:29:05 -0600 From: Jim Lowe <james@miller.cs.uwm.edu> To: hasty@netcom.com Cc: hackers@FreeBSD.org, pst@cisco.com, tinguely@plains.nodak.edu Subject: Re: GUS sound driver with vat support Message-ID: <199502141929.NAA08309@miller.cs.uwm.edu>
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> From: hasty@netcom.com > > Well, there are two ways of looking at this to come up with a better > vat driver or to get rid of vat:) > > Given Van Jacobson reluctance to release the source, I think that > is going to be easier to develop a sound tool which does not > require the vat driver. Nevot I think is a good start and additioanlly > we may be able to extend the sound functionality of nevot to use > NAS. Nevot will have the same problems that vat has. I tried to address these sound card problems in a second generation of the vat driver, but it didn't work. Fixing sound card timing problems is the kernel is not a good idea anyways. What the basic problem is -- is that PC soundcards don't run at the same frequency. The same sound card in a variety of machines under different load will produce different input/output freqs. Vat/Nevot/<name your program> will have problems communicating unless they all agree on a standard frequency, encoding, stereo/mono, # bits, etc... Each person in the conference must adhere to these standards otherwise things will sound funny or not work at all. I suspect that Van hasn't released this code because he is waiting for the RTP-V2 spec to be finished but who knows. -Jim
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