source file: mills2.txt Date: Mon, 4 Nov 1996 15:58:41 -0800 Subject: Re: Pitch Bend for tuning From: bf250@freenet.carleton.ca (John Sankey) Denny Genovese wrote "Sliding tones in the attack of notes indicate that pitch Bend is being sent AFTER the note message". That is not true, on many computer-based soundcard systems at least. On my PC(386)+SoundBlaster system, a pitch-bend must be timed about 10 ms in advance of the start of the note, or a slide can be heard in the note attack. A soon as I started to post recordings on the net, I found that a lot of other computer systems and cards show effects similar to mine. I also note that real instruments have decays after the end of notes, and a pitch-bend command will slide them too. That's why I ended up restricting my pitch-bends to the beginning of a piece then waiting 1/4 s before the start of note on's. Otherwise, you would have to determine the decay time of the worst- case note-off plus the pitch-bend actuation time, assign notes only to channels that had been quiet at least that long, and insert the pitch-bend to be sent at least the actuation time prior to note-on. Can be done of course, but it would take a lot more programming than my method does. Received: from ns.ezh.nl [137.174.112.59] by vbv40.ezh.nl with SMTP-OpenVMS via TCP/IP; Tue, 5 Nov 1996 01:16 +0100 Received: by ns.ezh.nl; (5.65v3.2/1.3/10May95) id AA00569; Mon, 4 Nov 1996 05:58:41 +0100 Received: from eartha.mills.edu by ns (smtpxd); id XA00567 Received: from by eartha.mills.edu via SMTP (940816.SGI.8.6.9/930416.SGI) for id UAA15912; Sun, 3 Nov 1996 20:58:39 -0800 Date: Sun, 3 Nov 1996 20:58:39 -0800 Message-Id: Errors-To: madole@ella.mills.edu Reply-To: tuning@eartha.mills.edu Originator: tuning@eartha.mills.edu Sender: tuning@eartha.mills.edu