Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!spool.mu.edu!munnari.oz.au!bruce!monu0.cc.monash.edu.au!vaxc.cc.monash.edu.au!bull From: bull@vaxc.cc.monash.edu.au Newsgroups: comp.sys.amiga.audio Subject: Re: Can you sample direct from CD-ROM? Message-ID: <1991Apr24.131452.86606@vaxc.cc.monash.edu.au> Date: 24 Apr 91 03:14:52 GMT References: Organization: Computer Centre, Monash University, Australia Lines: 30 In article , roger_earl@outbound.wimsey.bc.ca (Roger Earl) writes: > CDTV has built in MIDI ports and new CDs are being made with MIDI information > on the disk as well as still graphics (CD-g). I'm sure all of the MIDI > information will be there, including sampling to another MIDI device. I'm no > MIDI expert, so I'm not sure how it works and I've heard that sending samples > thru MIDI is slow. Is anyone sure whether or not this will work ? > > Roger Earl = Usenet: roger_earl@outbound.wimsey.bc.ca = GEnie: R.Earl4 The MIDI protocol does not support real time sampleing. MIDI does support sending samples from one MIDI device to another, but this is when the sound has already been sampled. MIDI messages do not normally contain information about the actual sound to be played, just the note to be played, volume, pitch bending, duration and device control messages. The data used to create the actual sound (piano, barking dogs, etc) is contained within the sound module that the MIDI messages are sent to. To be able to use samples which the CDTV may (or may not) be able to transmit in the MIDI protocol, you have to have a device which can understand the MIDI sample message data (only a small number of MIDI devices recognise the sample dump messages) and it is not normal for such samples to be transmitted as part of a real time performance. The normal meathod is to download the samples to the sound modules beforehand, in a bulk dump mode. I am not familiar with the CDTV so I cannot say if it can produce MIDI sample data. Bull@vaxc.cc.monash.edu.au OR bull@monu1.cc.monash.oz Alias: Gareth Bull, The Opal Dragon DOD# 251 '84 VF 750 Closet Ducatisti Disclaimer: "It's a cruel world when you can't afford a Ducati."