cps2pch Opcode Unequal Temperament Fix

Date	1997-12-11 13:50
From	Hans Mikelson
Subject	cps2pch Opcode Unequal Temperament Fix
	Hello, I asked a question about the new (3.46) cps2pch opcode a while back and have since figured out what needs to be done to access an unequal temperament table. It seems to have a rounding error if you enter your pitch as a fraction ie: 7.00, 7.05, etc. It apparently just uses int(frac(ipitch)100) to access the table but do to floating point inaccuracy you end up with 7.049999 about half of the time which ends up as 7.04 not 7.05. The formula should be int(frac(ipitch)100+.5) so it rounds up. Anyway you can make it work by adding .005 to everything. Basically: f4 0 17 -2 1.000 1.067 1.121 1.196 1.273 1.344 1.422 1.496 1.600 1.703 1.798 1.903 2.000 ; Werkmeister III ; Sta Dur Amp Pitch Wave Env Temperament i2 0 .2 8000 7.00 1 3 4 itemp = p8 ifqc1 cps2pch p5+.005, -itemper It also does not wrap around at 12 so if you want it to wrap around it gets a bit more complex. I'll post the un-equal temperament strummer on my web site soon. Bye, Hans Mikelson

Date	1997-12-12 17:53
From	Hans Mikelson
Subject	Re: cps2pch Opcode Unequal Temperament Fix
	Hello, At 01:14 PM 12/19/97 GMT, jpff@maths.bath.ac.uk wrote: >The rounding error in cps2pch has been fixed; from the ChangeLog I must have the old version. It makes it a bit of a chore to code a wrap around at least the way I did it. Perhaps there is an easier way? Regards, Hans Mikelson Date: Mon, 22 Dec 97 11:37:23 GMT From: jpff@maths.bath.ac.uk Subject: Re: Win95 (3.47 beta) midi and devaudio (fwd) To: csound@maths.ex.ac.uk Message-Id: Sender: owner-csound-outgoing@maths.ex.ac.uk Precedence: bulk Message written at 19 Dec 1997 21:15:48 +0000 --- Copy of mail to g.maldonado@agora.stm.it --- In-reply-to: <349A402F.3560E8C3@agora.stm.it> (message from Gabriel Maldonado on Fri, 19 Dec 1997 10:36:48 +0100) References: <349A402F.3560E8C3@agora.stm.it> The loop has just been reported to me -- that is why I sent this out as a Beta. I only have 0 or 1 sound device on my PCs so I was unable to test this. The code now accepts devaudio# for # an integer (and actually some other rubbish -- I am too lazy to check everything today) and in teh integer is available uses it, or defaults to zero. The MIDI device is controlled by the environment parameter MIDIOUTDEV in my code; on Linux I think it is different. ==John ff Message-Id: <349E6932.CBBD7E0F@dimensional.com> Date: Mon, 22 Dec 1997 06:20:51 -0700 From: Stuart Mime-Version: 1.0 To: csound@maths.ex.ac.uk Subject: Cecilia for Win95, anyone? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-csound-outgoing@maths.ex.ac.uk Precedence: bulk I thought I'd seen a post about this port being done and somewhere in testing. Anyone know if it's available? Thanks Stuart stuartf@dimensional.com Message-Id: <349D9367.1929E878@lix.intercom.es> Date: Sun, 21 Dec 1997 23:08:39 +0100 From: Josep M* Comajuncosas Mime-Version: 1.0 To: csound@maths.ex.ac.uk Subject: reinitialising ifn in table opcode (?) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-csound-outgoing@maths.ex.ac.uk Precedence: bulk Is it possible to change the table number in a table-tablei opcode via a reinit pass? Till now all my efforts have not worked at all... I usually get a message like "invalid f table number 0..." or "table no initialized"... I know of some other opcodes for this, like tablekt or tableikt, but they seem not to have been implemented yet anywere but in the help files ;-), am I wrong? Tnx in advance! Josep M Comajuncosas

Date	1997-12-19 13:14
From	jpff@maths.bath.ac.uk
Subject	Re: cps2pch Opcode Unequal Temperament Fix
	The rounding error in cps2pch has been fixed; from the ChangeLog 1997-10-15 John Fitch * aops.c (cps2pch): Corrected a rounding error in table case. (cpsxpch): Ditto >> It also does not wrap around at 12; Indeed, nor should it. What has 12 to do with tuning(!?) ==John ff Received: from stork.maths.bath.ac.uk by omphalos.maths.Bath.AC.UK id aa09857; 19 Dec 97 18:38 GMT Received: from pat.bath.ac.uk by stork.maths.Bath.AC.UK id aa26769; 19 Dec 97 18:38 GMT Received: (qmail 24286 invoked from network); 19 Dec 1997 18:38:15 -0000 Received: from agora.stm.it (195.62.32.1) by pat.bath.ac.uk with SMTP; 19 Dec 1997 18:38:15 -0000 Received: from default (ppp03-08.stm.it [195.62.37.136]) by agora.stm.it (8.8.8/8.8.5) with ESMTP id TAA12155; Fri, 19 Dec 1997 19:37:52 +0100 (ITA) Message-ID: <349A402F.3560E8C3@agora.stm.it> Date: Fri, 19 Dec 1997 10:36:48 +0100 From: Gabriel Maldonado X-Mailer: Mozilla 4.0 [en] (Win95; I) MIME-Version: 1.0 To: jpff@maths.bath.ac.uk CC: Csound Mailing List Subject: Re: Win95 (3.47 beta) midi and devaudio (fwd) X-Priority: 3 (Normal) References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit jpff@maths.bath.ac.uk wrote: > The message > Select device number > is expecting you to type a number. It may be that there is noone > listening to the terminal at that time I suppose. > In winsound 3.47 beta there is a loop that types the "Select device number" message infinetely and the terminal is insensible to keyboard. So it is not possible to select the WAVE device number and, at last, to use it in realtime. What about the activation and selection of MIDI device number? > I dislike adding new options, so at present I am not sure what one > shoudl do. i used to use device zero always, but someone objected. You adfirm to use always the device zero, but the "Select device number" message appears when using -odevaudio. Why? > I could add an Environment variable or something in the .ini file > reasonably easily. What do you suggest? I suppose I could even throw > > up a dialog box at that time -- yeak. OK! -- Gabriel Maldonado mailto:g.maldonado@agora.stm.it http://www.agora.stm.it/G.Maldonado/home2.htm http://www.geocities.com/SiliconValley/Way/7041/home2.htm Received: from stork.maths.bath.ac.uk by omphalos.maths.Bath.AC.UK id aa09892; 19 Dec 97 18:42 GMT Received: from pat.bath.ac.uk by stork.maths.Bath.AC.UK id aa26979; 19 Dec 97 18:42 GMT Received: (qmail 24487 invoked from network); 19 Dec 1997 18:42:45 -0000 Received: from hermes.ex.ac.uk (HELO exeter.ac.uk) (144.173.6.14) by pat.bath.ac.uk with SMTP; 19 Dec 1997 18:42:45 -0000 Received: from noether [144.173.8.10] by hermes via SMTP (SAA00797); Fri, 19 Dec 1997 18:35:30 GMT Received: from hermes.ex.ac.uk by maths.exeter.ac.uk; Fri, 19 Dec 97 18:35:14 GMT Received: from agora.stm.it [195.62.32.1] by hermes via ESMTP (SAA18638); Fri, 19 Dec 1997 18:35:06 GMT Received: from default (ppp03-08.stm.it [195.62.37.136]) by agora.stm.it (8.8.8/8.8.5) with ESMTP id TAA12155; Fri, 19 Dec 1997 19:37:52 +0100 (ITA) Message-Id: <349A402F.3560E8C3@agora.stm.it> Date: Fri, 19 Dec 1997 10:36:48 +0100 From: Gabriel Maldonado X-Mailer: Mozilla 4.0 [en] (Win95; I) Mime-Version: 1.0 To: jpff@maths.bath.ac.uk Cc: Csound Mailing List Subject: Re: Win95 (3.47 beta) midi and devaudio (fwd) X-Priority: 3 (Normal) References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-csound-outgoing@maths.ex.ac.uk Precedence: bulk jpff@maths.bath.ac.uk wrote: > The message > Select device number > is expecting you to type a number. It may be that there is noone > listening to the terminal at that time I suppose. > In winsound 3.47 beta there is a loop that types the "Select device number" message infinetely and the terminal is insensible to keyboard. So it is not possible to select the WAVE device number and, at last, to use it in realtime. What about the activation and selection of MIDI device number? > I dislike adding new options, so at present I am not sure what one > shoudl do. i used to use device zero always, but someone objected. You adfirm to use always the device zero, but the "Select device number" message appears when using -odevaudio. Why? > I could add an Environment variable or something in the .ini file > reasonably easily. What do you suggest? I suppose I could even throw > > up a dialog box at that time -- yeak. OK! -- Gabriel Maldonado mailto:g.maldonado@agora.stm.it http://www.agora.stm.it/G.Maldonado/home2.htm http://www.geocities.com/SiliconValley/Way/7041/home2.htm Received: from stork.maths.bath.ac.uk by omphalos.maths.Bath.AC.UK id aa10305; 19 Dec 97 22:19 GMT Received: from mercury.bath.ac.uk by stork.maths.Bath.AC.UK id aa09750; 19 Dec 97 22:19 GMT Received: (qmail 13553 invoked from network); 19 Dec 1997 16:52:34 -0000 Received: from ella.mills.edu (144.91.3.20) by mercury.bath.ac.uk with SMTP; 19 Dec 1997 16:52:34 -0000 Received: (qmail 5409 invoked by uid 2928); 19 Dec 1997 08:51:04 -0800 Date: Fri, 19 Dec 1997 08:51:04 -0800 (PST) From: Mike Berry To: jpff@maths.bath.ac.uk cc: csound@maths.ex.ac.uk Subject: Re: table graphics In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII The Mills version stores a graphic representation of all of the f tables. They are accessable in a single window using a scroll bar to go up or down in the list. The main feature is that they are all available throughout the run, in any order. As new tables are generated, they are added to the list. Mike Berry mikeb@mills.edu