mirror of
https://github.com/cookiengineer/audacity
synced 2025-08-01 16:39:30 +02:00
Steve's fix for inaccurate length, see bug 449
This commit is contained in:
martynshaw99
parent
e6c93bc1e5
commit
a469380de7
@ -4,10 +4,30 @@
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;categories "http://lv2plug.in/ns/lv2core#GeneratorPlugin"
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;name "Click Track..."
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;action "Generating Click Track..."
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;info "by Dominic Mazzoni, modified by David R. Sky\nReleased under terms of the GNU General Public License version 2\nFor help, select one of two help screens in 'Action choice' below."
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;info "by Dominic Mazzoni, modified by David R. Sky and Steve Daulton.\nReleased under terms of the GNU General Public License version 2.\nFor help, select one of two help screens in 'Action choice' below."
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;; Released under terms of the GNU General Public License version 2:
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;; http://www.gnu.org/licenses/old-licenses/gpl-2.0.html .
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;; original clicktrack.ny by Dominic Mazzoni,
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;; modified by David R. Sky and Steve Daulton.
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;; Minimum Audacity version: 1.3.4
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;;
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;; bug fixes and restructured by Steve Daulton Sept 2011.
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;; string input verification added by Steve Daulton, 2009.
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;; added click pitch [user request] and sound types fields September 2007 (D.R.Sky).
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;; added optional total click track duration field [requested by Mike Mullins]
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;; June 2009 (D.R.Sky).
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;; added individual click duration field [requested by Quinto Milana]
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;; June 2009 (D.R.Sky).
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;;
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;; Drip sound generator by Paul Beach,
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;; used with permission.
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;;
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;; Thanks very much to Gale Andrews, who gave extensive visual feedback
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;; and suggestions!
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;control action "Action choice" choice "Generate track, help screen 1, help screen 2" 0
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;control tempo "Tempo [beats per minute]" int "30 - 300 beats/minute" 120 30 300
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;control tempo "Tempo [beats per minute]" real "30 - 300 beats/minute" 120 30 300
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;control sig "Beats per measure [bar]" int "1 - 20 beats/measure" 4 1 20
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;control measures "Number of measures [bars]" int "1 - 1000 bars" 16 1 1000
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;control click-track-dur "Optional click track duration [minutes seconds]" string "Whole numbers only" ""
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@ -18,300 +38,259 @@
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;control high "MIDI pitch of strong click" int "18 - 116" 92 18 116
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;control low "MIDI pitch of weak click" int "18 - 116" 80 18 116
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; original clicktrack.ny by Dominic Mazzoni,
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; modified by David R. Sky:
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; string input verification added by Steve Daulton, 2009.
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; added click pitch [user request] and sound types fields September 2007
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; added optional total click track duration field [requested by Mike Mullins]
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; June 2009
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; added individual click duration field [requested by Quinto Milana]
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; June 2009]
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; original code kept 'as is'.
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; now includes:
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; choice between click sounds [ping {sinewave}, noise or tick],
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; user-set MIDI pitch values for strong and weak clicks,
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; resonance of noise clicks
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; [higher resonance gives them more discernable pitch],
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; time offset for start of click track,
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; and error-checking code to generate error message
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; for such things as negative value inputs
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; Drip sound generator by Paul Beach,
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; used with permission.
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;
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; Thanks very much to Gale Andrews, who gave extensive visual feedback
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; and suggestions!
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; view 1 of 2 help screens, or generate click track
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(cond ; 'master' cond
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((= action 1) ; display help screen 1
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(format nil
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(defun help1 ()
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(format nil
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"Click Track Generator help - screen 1 of 2
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Generates a click track at the selected tempo, beats per\nmeasure, and either number of measures or track duration,\nusing selected click sound.
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Generates a click track at the selected tempo, beats per
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measure, and either number of measures or track duration,
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using selected click sound.
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'Tempo': number of beats (clicks) per minute.
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'Beats per measure (bar)': For example, 3/4 time means one\nstrong click then two others to form one bar, repeated\ndepending on 'number of measures' or 'click track duration'.
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'Beats per measure (bar)': For example, 3/4 time means one
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strong click then two others to form one bar, repeated
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depending on 'number of measures' or 'click track duration'.
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'Optional click track duration': If you enter a value into this\nfield, either [minutes seconds] (separated by a space), or\n[seconds], the generated click track will be at or slightly\nlonger than this duration: the end of the track is extended\ninto a whole measure if the entered duration does not\nproduce this. Use whole numbers only.
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'Optional click track duration': If you enter a value into this
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field, either [minutes seconds] (separated by a space), or
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[seconds], the generated click track will be at or slightly
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longer than this duration: the end of the track is extended
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into a whole measure if the entered duration does not
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produce this. Use whole numbers only.
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If you enter a value into this field, the 'number of measures'\nvalue will be ignored.
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If you enter a value into this field, the 'number of measures'
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value will be ignored.
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To generate click track or view help screen 2,\n restart Click Track and select from 'Action choice'.") ; end format
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) ; end display help screen 1
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To generate click track or view help screen 2,
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restart Click Track and select from 'Action choice'.")) ;end of help1
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((= action 2) ; display help screen 2
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(format nil
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(defun help2 ()
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(format nil
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"Click Track Generator help - screen 2 of 2
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'Individual click duration': the duration of each individual\nclick, minimum of 1 millisecond (ms) to maximum of 100 ms.
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'Individual click duration': the duration of each individual
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click, minimum of 1 millisecond (ms) to maximum of 100 ms.
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'Start time offset': makes the click track start at a later\ntime than the very beginning (zero seconds), maximum\nof 30 seconds.
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'Start time offset': makes the click track start at a later
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time than the very beginning (zero seconds), maximum
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of 30 seconds.
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'Click sound': choose between ping, noise or tick sound\nfor clicks.
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'Click sound': choose between ping, noise or tick sound
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for clicks.
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'Noise click resonance': the higher this value, the more\nclearly noise clicks have a tone.
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'Noise click resonance': the higher this value, the more
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clearly noise clicks have a tone.
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'MIDI pitch of strong/weak click': MIDI values indicate\nwhat pitch to use. C-notes are:
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24, 36, 48, 60 (middle C), 72, 84, 96, 108.\nC# (C-sharp) above middle C is 61.
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24, 36, 48, 60 (middle C), 72, 84, 96, 108.
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C# (C-sharp) above middle C is 61.
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To generate click track or view help screen 1,\n restart Click Track and select from 'Action choice'.") ; end format
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) ; end display help screen 2
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(t ; perform clicktrack.ny
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(setf click-type (+ click-type 1))
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To generate click track or view help screen 1,
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restart Click Track and select from 'Action choice'.")) ;end of help 2
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; check function: returns 1 on error
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; min and max are allowable min and max values for arg
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;Check function: returns 1 on error
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;min and max are allowable min and max values for arg
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(defun check (arg min max)
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(if (and (>= arg min) (<= arg max))
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0 1))
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(if (and (>= arg min) (<= arg max)) 0 1))
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; function to convert a string into a list
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;Function to convert a string into a list
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(defun string-to-list (string)
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(read (make-string-input-stream (format nil "(~a)" string))))
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(read (make-string-input-stream (format nil "(~a)" string))))
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; convert minutes-seconds string to a list
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; for example, "4 30" becomes (4 30)
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(setf m-s (string-to-list click-track-dur))
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(defun round-up (x)
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(if (> x (truncate x))
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(truncate (1+ x))
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(truncate x)))
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; initialize blank error-msg
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(setf error-msg "")
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(defun m-s-to-seconds (mslist)
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(if (= (length mslist) 1)
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;just seconds
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(first mslist)
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;minutes and seconds
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(+ (* 60 (first mslist))(second mslist))))
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; input values error checks
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; tempo
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(setf error-msg (if
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(= (check tempo 30 300) 0)
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error-msg
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(strcat error-msg (format nil
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;Function to generate drip sound clicks
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;code by Paul Beach www.proviewlandscape.com/liss/
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;stretch-abs function makes this sound more like 'tick' sounds.
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;limit hz to nyquist frequency.
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(defun drip (p) ;p is pitch in hz
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(let* ((maxhz (/ *sound-srate* 2.1))
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(hz1 (min maxhz (* 2.40483 p)))
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(hz2 (min maxhz (* 5.52008 p)))
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(hz3 (min maxhz (* 8.653 p)))
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(hz4 (min maxhz (* 11.8 p))))
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(lp
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(stretch-abs 1
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(mult (exp-dec 0 0.015 0.25)
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(sim
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(mult (hzosc hz1) 0.5)
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(mult (hzosc hz2) 0.25)
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(mult (hzosc hz3) 0.125)
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(mult (hzosc hz4) 0.0625))))
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440)))
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;Function used to normalize noise and tick clicks
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;this function is necessary because filtering
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;changes amplitude of filtered noise clicks
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(defun normalize (sound)
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(scale (/ (peak sound ny:all)) sound))
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;; Error Checking
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(defun errorcheck ()
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; tempo
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(if (= (check tempo 30 300) 1)
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(setq error-msg (strcat error-msg (format nil
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"Tempo ~a outside valid range 30 to 300 bpm
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" tempo))))
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; beats per measure
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(setf error-msg (if
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(= (check sig 1 20) 0)
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error-msg
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(strcat error-msg (format nil
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;beats per measure
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(if (= (check sig 1 20) 1)
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(setq error-msg (strcat error-msg (format nil
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"Beats per measure ~a outside valid range 1 to 20
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" sig))))
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; number of measures
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(setf error-msg (if
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(= (check measures 1 1000) 0)
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error-msg
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(strcat error-msg (format nil
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;number of measures
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(if (= (check measures 1 1000) 1)
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(setq error-msg (strcat error-msg (format nil
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"Number of measures ~a outside valid range 1 to 1000
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" measures))))
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; time start offset
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(setf error-msg (if
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(= (check offset 0 30) 0)
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error-msg
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(strcat error-msg (format nil
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;time start offset
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(if (= (check offset 0 30) 1)
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(setq error-msg (strcat error-msg (format nil
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"Time offset ~a outside valid range 0 to 30 seconds
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" offset))))
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; q
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(setf error-msg (if
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(= (check q 1 20) 0)
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error-msg
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(strcat error-msg (format nil
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; q
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(if (= (check q 1 20) 1)
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(setq error-msg (strcat error-msg (format nil
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"Filter quality q ~a outside valid range 1 to 20
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" q))))
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; high MIDI pitch
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(setf error-msg (if
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(= (check high 18 116) 0)
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error-msg
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(strcat error-msg (format nil
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;high MIDI pitch
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(if (= (check high 18 116) 1)
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(setq error-msg (strcat error-msg (format nil
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"High MIDI pitch ~a outside valid range 18 to 116
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" high))))
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; low MIDI pitch
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(setf error-msg (if
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(= (check low 18 116) 0)
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error-msg
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(strcat error-msg (format nil
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;low MIDI pitch
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(if (= (check low 18 116) 1)
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(setq error-msg (strcat error-msg (format nil
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"Low MIDI pitch ~a outside valid range 18 to 116
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" low))))
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; validate string
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(if (not (null m-s)) ; don't test if not set
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(if (= (length m-s) 1) ; if there is only one item
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(setf error-msg (if
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(integerp (first m-s)) ; first is number
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error-msg
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(strcat error-msg (format nil
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;validate string
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(if (> (length m-s) 0) ;if at least one item
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(cond
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((or
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(> (length m-s) 2) ;there are more than 2 items or
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(not (integerp (first m-s))) ;first is not an integer or
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(and (= (length m-s) 2)(not (integerp (second m-s))))) ;second is not an integer
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(setq error-msg (strcat error-msg (format nil
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"If used, 'Optional click track duration' must be
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entered as either one number [seconds], or two
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numbers [minutes seconds] separated by a space.
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Use whole numbers only.
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"))))
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; else if there is more than one item
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(setf error-msg (if (and
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(<= (length m-s) 2) ; there are no more than 2 items and
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(integerp (first m-s)) ; first is number
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(integerp (second m-s))) ; second is number
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error-msg
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(strcat error-msg (format nil
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"If used, 'Optional click track duration' must be
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entered as either one number [seconds], or two
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numbers [minutes seconds] separated by a space.
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Use whole numbers only.
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"))))))
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; optional click track length
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; one number entered
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(if (and (integerp (first m-s))(= (length m-s) 1))
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(setf error-msg (if
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(= (check (first m-s) 0 3660) 0)
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error-msg
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(strcat error-msg (format nil
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"~a seconds is outside valid range 0 to 3660"
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(first m-s))))))
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; two numbers entered
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(if (and
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(integerp (first m-s))
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(integerp (second m-s))
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(= (length m-s) 2))
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(setf error-msg (if (and
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(= (check (first m-s) 0 60) 0)
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(= (check (second m-s) 0 59) 0))
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error-msg
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(strcat error-msg (format nil
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"~a is outside valid range 0 to [60 59]"
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m-s)))))
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Use whole numbers only.~%"))))
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;one or two integers
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((and
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(= (length m-s) 1) ;one integer and
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(= (check (first m-s) 0 3660) 1)) ;outside valid range
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(setq error-msg (strcat error-msg (format nil
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"~a seconds is outside valid range 0 to 3660~%" (first m-s)))))
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;one or two integers
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((and
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(= (length m-s) 2) ;2 integers and
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(or
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(= (check (first m-s) 0 60) 1) ;1st is outside valid range or
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(= (check (second m-s) 0 59) 1))) ;2nd is outside valid range or
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(setq error-msg (strcat error-msg (format nil
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"~a is outside valid range 0 to [60 59]~%"
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m-s))))))) ;end of error checking
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(cond
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; if error-msg is not blank, give error msg
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((> (length error-msg) 0)
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(setf error-msg (strcat (format nil
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"Error - \n\nYou have entered at least one invalid value:\n
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") error-msg))) ; end error msg
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;Function to make click
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(defun click (type accent)
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(setq pitch (if (= accent 1) high low))
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(setq amp (if (= accent 1) 0.75 0.5))
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(stretch-abs ticklen
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;pwl is used to add 5ms fade-in and fade-out of clicks
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(mult (pwl 0.005 amp 0.995 amp 1)
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(case type
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(0 (osc pitch)) ;ping click
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(1 (normalize (lowpass2 (noise 1) (step-to-hz pitch) q))) ;noise click
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(2 (normalize (drip (step-to-hz pitch)))))))) ;tick click
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; no error so generate click track
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(t
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; duration of 1 click, originally statically 0.01 s
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(setf ticklen (* (max 1 (min 100 ticklen)) 0.001))
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(setf beatlen (/ 60.0 tempo))
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;Function to make one measure
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(defun makemeasure ()
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(setf measure (click click-type 1)) ;accented click
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(dotimes (x (- sig 1))
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(setf measure (sim measure
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(at (* beatlen (+ x 1))
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(click click-type 0)))))) ;unaccented clicks
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;Function to loop measures
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(defun loop (bar number sig beatlen)
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(do* ((result bar) ;initialise result
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(count 1 (setq count (1+ count))))
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((= count number) result) ;up to number of measures and return result
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(setq mtime (* count sig beatlen)) ;set time for next measure
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(setf result (sim result (at mtime (cue bar))))))
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|
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; function to generate drip sound clicks
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; code by Paul Beach www.proviewlandscape.com/liss/
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; stretch-abs function makes this sound more like 'tick' sounds
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(defun drip (p) ; p is pitch in hz
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(lp
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(stretch 1
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(mult (exp-dec 0 0.015 0.25)
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( sim
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(mult (hzosc (* 2.40483 p)) 0.5 )
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(mult (hzosc (* 5.52008 p)) 0.25 )
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(mult (hzosc (* 8.653 p)) 0.125 )
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(mult (hzosc (* 11.8 p)) 0.0625 )
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)
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)
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)
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440))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; START MAIN PROGRAM
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;view 1 of 2 help screens, or generate click track
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(cond ;'master' cond
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((= action 1)(help1)); display help screen 1
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((= action 2)(help2)) ; display help screen 2
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(t ;Run Program
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(setq error-msg "") ;initialize error-msg
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;convert minutes-seconds string to a list
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;for example, "4 30" becomes (4 30)
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(setf m-s (string-to-list click-track-dur))
|
||||
|
||||
; function used to normalize noise and tick clicks
|
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; this function is necessary because filtering
|
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; changes amplitude of filtered noise clicks
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(defun normalize (sound)
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(setf peak-level (peak sound ny:all))
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(scale (/ 1.0 peak-level) sound))
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;run error checks on input values
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(errorcheck)
|
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(if (= (length error-msg) 0) ;if no errors, generate Click Track
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(progn
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; duration of 1 click, originally statically 0.01 s
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(setf ticklen (* (max 1 (min 100 ticklen)) 0.001))
|
||||
(setf beatlen (/ 60.0 tempo))
|
||||
|
||||
;call function to make one measure
|
||||
(makemeasure)
|
||||
|
||||
;calculate measures from text input (if used)
|
||||
(if m-s (setq measures
|
||||
(/ (m-s-to-seconds m-s)(* sig beatlen))))
|
||||
|
||||
; make one measure
|
||||
(setf measure (stretch-abs ticklen (mult 0.75
|
||||
; pwl is used to add fast [5ms] fade-in and fade-out of clicks
|
||||
(pwl 0 0 0.005 1 0.995 1 1 0 1)
|
||||
(cond
|
||||
((= click-type 1) ; ping accented clicks
|
||||
(osc high))
|
||||
((= click-type 2) ; noise accented clicks
|
||||
(normalize (lowpass2 (noise 1) (step-to-hz high) q)))
|
||||
((= click-type 3) ; tick accented clicks
|
||||
(normalize (drip (step-to-hz high)))) ))))
|
||||
(dotimes (x (- sig 1))
|
||||
(setf measure (sim measure
|
||||
(at (* beatlen (+ x 1))
|
||||
(stretch-abs ticklen (mult 0.5
|
||||
; again, pwl adds 5ms fade-in and fade-out to clicks
|
||||
(pwl 0 0 0.005 1 0.995 1 1 0 1)
|
||||
(cond
|
||||
((= click-type 1) ;ping tone unaccented clicks
|
||||
(osc low))
|
||||
((= click-type 2) ; noise unaccented clicks
|
||||
(normalize (lowpass2 (noise 1) (step-to-hz low) q)))
|
||||
((= click-type 3) ; tick unaccented clicks
|
||||
(normalize (drip (step-to-hz low)))) )))))))
|
||||
; make the measure exactly the right length
|
||||
(setf measure (sim measure
|
||||
(stretch-abs (* sig beatlen) (const 0.0))))
|
||||
;round up number of measures
|
||||
(setq measures (round-up measures))
|
||||
|
||||
|
||||
; convert click-track-dur to number of measures,
|
||||
; otherwise use user's measures value
|
||||
(setf measures (if (null m-s)
|
||||
measures
|
||||
(/
|
||||
(if ;2
|
||||
(= (length m-s) 1)
|
||||
(first m-s) ; just seconds
|
||||
(+ (* 60 (first m-s)) (second m-s) ; minutes and seconds
|
||||
) ; end +
|
||||
) ; end if2
|
||||
(* sig beatlen)) ; end /
|
||||
) ; end if
|
||||
) ; end setf measures
|
||||
|
||||
|
||||
; round up to next whole number of measures only if
|
||||
; measures > (truncate measures)
|
||||
(setf measures (if
|
||||
(> measures (truncate measures))
|
||||
(truncate (1+ measures))
|
||||
(truncate measures)
|
||||
)) ; end if, setf measures
|
||||
|
||||
|
||||
; loop measure n [measures-1] times
|
||||
(setf result measure)
|
||||
(dotimes (x (- measures 1))
|
||||
(setf result (seq result measure)))
|
||||
; add time offset to result,
|
||||
; if offset > 0 seconds
|
||||
(setf result (if (= offset 0) result
|
||||
(sim (s-rest offset) (at-abs offset (cue result)))))
|
||||
|
||||
; return [click track] result
|
||||
result
|
||||
|
||||
) ; end t
|
||||
) ; end cond
|
||||
|
||||
) ; end t perform clicktrack.ny
|
||||
) ; end 'master' cond
|
||||
;loop measures
|
||||
(setf clicktrack (loop measure measures sig beatlen))
|
||||
|
||||
;add time offset and beatlen of silence to clicktrack,
|
||||
(seq (s-rest offset) ;offset
|
||||
(cue clicktrack) ;click track
|
||||
(s-rest(- beatlen ticklen)))) ;trailing silence
|
||||
;Else error message
|
||||
(setq error-msg (strcat (format nil
|
||||
"Error.~%You have entered at least one invalid value:~%~%") error-msg)))))
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user