Date: Wed, 28 Jan 1998 22:42:28 -0500 (EST) From: Jim Durham <durham@w2xo.pgh.pa.us> To: Kees Jan Koster <dutchman@tccn.cs.kun.nl> Cc: FreeBSD Multimedia List <freebsd-multimedia@FreeBSD.ORG> Subject: RE: Audio recording anyone? Message-ID: <XFMail.980128224228.durham@w2xo.pgh.pa.us> In-Reply-To: <34CE2C98.41C67EA6@tccn.cs.kun.nl>
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On 27-Jan-98 Kees Jan Koster wrote: > I want to record sound with my PC. I was curious if other FreeBSD users > are doing the same thing under FreeBSD. > > If you are, what software are you using? > > A more difficult question: can I do multitracking? Do I need special > soundcards for this, or can I plug two (three? four?) soundblaster cards > into my machine. Yes, I record sound quite often on FreeBSD. Here are my experiences so far: I have tried sound recording using mxv from the ports tree and the RealAudio encoder. Both have their problems. mxv will core dump on any changed scan rate setting. It only does 8kbit/s wav files. RealAudio encoder works fine encoding from files, but core dumps immediately if you try to record from the mic or line inputs on my SoundBlaster 16. Sent them a bug report..no reply... I have been using a little C program that inputs from the sound card and writes to a raw file. I can then take the raw file and play it directly with another C program, change it to many different formats with sox, or encode the file to RealAudio. I have no experience with multi-tracking using sound cards. I use a 4 track tape deck along with the card and a little stereo mixer with microphone, CD player, cassette deck, 4 track deck and audio cart machine that feeds the line input on my sound card. The output from the sound card goes into the mixer also for playback. You can, according to the documentation, put multiple sound cards in a FreeBSD box, using different addresses , IRQs and DRQs. regards, Jim Durham Jim Durham <Television Engineer-Unitel Mobile Video, Pittsburgh> <Computer Consultant/Hobbyist> <Amateur Radio: W2XO> <Web:http://www.w2xo.pgh.pa.us>; <Packet:W2XO@W2XO.#SWPA.PA.USA.NOAM>
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