Subject: Re: [stella] sample of Atari sounds From: "B. Watson" <atari@xxxxxxxxxxxxxx> Date: Mon, 23 May 2005 09:27:00 -0400 |
On Sat, 21 May 2005, Kirk Israel wrote: > Or > if there was a way of capturing those sounds without resorting to a > microphone? (Like sampling straight out of Z26 with a custom sound > generation program) z26 can save its audio data to a file (any SDL app can): Set the environment variable SDL_AUDIODRIVER=disk, then run z26. You shouldn't hear any audio. When you exit z26, you should see a file called sdlaudio.raw in the current directory. This is raw 8-bit mono unsigned audio data at either 31400Hz (for an NTSC ROM) or 31113Hz for PAL). If you're using Linux (or any UNIX-like environment, including Cygwin on Windows), you can use the sox command to convert this to a .wav file, which is a lot more convenient to deal with. The command would look something like: sox -t raw -c 1 -b -r 31400 -u sdlaudio.raw -t wav -c 1 -r 44100 -w -s audio.wav (Note: that's from memory, I may have mangled it badly) If you're not into UNIXy command line stuff, I'm sure there are plenty of Windows-native audio conversion programs that can play the sdlaudio.raw or convert it into a more useful format... but not being a Windows user, I can't tell you the names of any. Hope this helps. -- B. Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://stella.biglist.com
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