Update three Nyquist plug-ins
Fixed some verification errors, Removed some redundant translation strings, Define manpage for rms.ny.
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@ -8,7 +8,7 @@ $manpage "Adjustable_Fade"
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$debugbutton false
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$action (_ "Applying Fade...")
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$author (_ "Steve Daulton")
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$release 2.3.0
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$release 2.3.1
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$copyright (_ "Released under terms of the GNU General Public License version 2")
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;; Released under terms of the GNU General Public License version 2:
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@ -57,6 +57,7 @@ $control preset (_ "Handy Presets (override controls)") choice (("None" (_ "None
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;;; invalid values
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(defun check-values (x y)
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(setf err (format nil (_ "Error~%~%")))
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(if (= units 0) ;percentage values
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(cond
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((or (< x 0)(< y 0))
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@ -67,11 +68,16 @@ $control preset (_ "Handy Presets (override controls)") choice (("None" (_ "None
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((or (> x 100)(> y 100))
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(throw 'err (format nil (_ "~adB values cannot be more than +100 dB.~%~%~
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Hint: 6 dB doubles the amplitude~%~
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\t-6 dB halves the amplitude." err)))))))
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\t-6 dB halves the amplitude.") err))))))
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;;; Select and apply fade
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(defun fade (sig type curve g0 g1)
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(check-values gain0 gain1)
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(when (= preset 0)
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; Can't use widget validation for gain. Range depends on units.
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(check-values g0 g1))
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(psetq curve (/ curve 100.0)
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g0 (gainscale g0 units)
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g1 (gainscale g1 units))
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(mult (get-input sig)
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(case preset
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(0 (case type ; Custom fade
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@ -196,11 +202,4 @@ $control preset (_ "Handy Presets (override controls)") choice (("None" (_ "None
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(db-to-linear ,gain))))
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(setf curve (/ curve 100.0))
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(setf gain0 (gainscale gain0 units))
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(setf gain1 (gainscale gain1 units))
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(setf err (format nil (_ "Error~%~%")))
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(catch 'err (fade *track* type curve gain0 gain1))
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@ -1,40 +1,34 @@
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$nyquist plug-in
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$version 3
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$version 4
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$type process
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$preview linear
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$name (_ "Delay")
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$manpage "Delay"
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$debugbutton false
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$action (_ "Applying Delay Effect...")
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$author (_ "Steve Daulton")
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$release 2.3.0
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$release 2.3.1
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$copyright (_ "Released under terms of the GNU General Public License version 2")
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;; by Steve Daulton, July 2012.
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;; based on 'Delay' by David R. Sky
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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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;; based on 'Delay' by David R. Sky
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;;
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;; For information about writing and modifying Nyquist plug-ins:
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;; https://wiki.audacityteam.org/wiki/Nyquist_Plug-ins_Reference
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$control delay-type (_ "Delay type") choice (
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(_ "Regular")
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$control delay-type (_ "Delay type") choice ((_ "Regular")
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("BouncingBall" (_ "Bouncing Ball"))
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("ReverseBouncingBall" (_ "Reverse Bouncing Ball"))
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) 0
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("ReverseBouncingBall" (_ "Reverse Bouncing Ball"))) 0
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$control dgain (_ "Delay level per echo (dB)") real "" -6 -30 1
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$control delay (_ "Delay time (seconds)") real "" 0.3 0 5
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$control pitch-type (_ "Pitch change effect") choice (
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("PitchTempo" (_ "Pitch/Tempo"))
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("LQPitchShift" (_ "Low-quality Pitch Shift"))
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) 0
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$control pitch-type (_ "Pitch change effect") choice (("PitchTempo" (_ "Pitch/Tempo"))
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("LQPitchShift" (_ "Low-quality Pitch Shift"))) 0
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$control shift (_ "Pitch change per echo (semitones)") real "" 0 -2 2
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$control number (_ "Number of echoes") int "" 5 1 30
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$control constrain (_ "Allow duration to change") choice (
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(_ "Yes")
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(_ "No")
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) 0
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$control constrain (_ "Allow duration to change") choice ((_ "Yes")(_ "No")) 0
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;; The default pitch shift effect is a simple resampling,
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@ -46,37 +40,14 @@ $control constrain (_ "Allow duration to change") choice (
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;; noticeable on percussive sounds though may be acceptable
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;; on other sounds.
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(setf err "") ; initialise error message
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(defun err-chk (arg min max)
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(if (or (< arg min) (> arg max))
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T nil))
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(when (err-chk number 1 50)(setq err (format nil
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(_ "Number of echoes '~a' outside valid range 1 to 50.~%~a")
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number err)))
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(when (err-chk shift -12 12)(setq err (format nil
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(_ "Pitch change '~a' outside valid range -12 to +12 semitones.~%~a")
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shift err)))
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(when (err-chk delay 0 10)(setq err (format nil
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(_ "Delay time '~a' outside valid range 0 to 10 seconds.~%~a")
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delay err)))
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(when (err-chk dgain -30 6)(setq err (format nil
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(_ "Delay level '~a' outside valid range -30 to +6 dB.~%~a")
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dgain err)))
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;;; anti-alias low pass filter
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;;; Anti-alias low pass filter
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(defun lp-wall (sig freq)
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(do ((count 0 (1+ count))
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(freq (* 0.94 freq)))
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((= count 10) sig)
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(setf sig (lowpass8 sig freq))))
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;;; Change speed
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(defun change-speed (sig shift)
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(if (= shift 0) ; no pitch shift
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@ -85,8 +56,7 @@ $control constrain (_ "Allow duration to change") choice (
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(force-srate *sound-srate*
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(stretch-abs ratio (sound sig))))))
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;;; pitch shift audio
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;;; Pitch shift audio
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(defun p-shift (sig shift)
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(if (= shift 0) ; no pitch shift
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sig
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@ -103,7 +73,7 @@ $control constrain (_ "Allow duration to change") choice (
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(pitshift (hp sig 20) ratio 1)) ; reduce sub-sonic frequencies
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(T (pitshift sig ratio 1))))))))
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;;; apply effects to echo
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;;; Apply effects to echo
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(defun modify (sig num gain shift p-type)
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(let ((gain (db-to-linear (* num gain)))
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(shift (* num shift)))
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@ -111,7 +81,7 @@ $control constrain (_ "Allow duration to change") choice (
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(mult gain (change-speed sig shift))
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(mult gain (p-shift sig shift)))))
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;;; compute echoes
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;;; Compute echoes
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(defun delays (sound gain delay shift num type mod)
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(let ((echo (s-rest 0)))
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(do ((count 1 (1+ count))
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@ -130,13 +100,17 @@ $control constrain (_ "Allow duration to change") choice (
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(defun constrain-abs (sig dur)
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(extract-abs 0 dur (cue sig)))
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;;; return errors or process
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(if (> (length err) 0)
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(format nil (_ "Error.~%~a") err) ; return error
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(let* ((delay (if (= delay-type 0) delay (/ delay number)))
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(output
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(multichan-expand #'delays
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s dgain delay shift number delay-type pitch-type)))
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(let* ((delay (if (= delay-type 0)
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delay
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(/ delay number)))
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(output (multichan-expand #'delays *track*
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dgain
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delay
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shift
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number
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delay-type
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pitch-type)))
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(if (= constrain 1)
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(multichan-expand #'constrain-abs output (get-duration 1))
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output)))
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output))
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@ -1,8 +1,11 @@
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;nyquist plug-in
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;version 4
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;type analyze
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;name "RMS"
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;name "Measure RMS"
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;manpage "Measure_RMS"
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;action "Measuring RMS level..."
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;author "Steve Daulton"
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;release 2.3.1
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;copyright "Released under terms of the GNU General Public License version 2"
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;; Released under terms of the GNU General Public License version 2:
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