I think that you may be describing the wrong effect. The latest version of the “LevelSpeech.ny” plug-in from this post does not have a “threshold” setting. If you are referring to the “Leveler” effect (Audacity Manual), then I agree that the results sound terrible.
That worked like a charm, thanks. I have a doubt because I put the threshold pretty random. There is a green bar with a lighter and a darker part for the output level. Let’s say the lighter green bar for the quiet voice goes from -36 to -24 then I should select a little below the minimum which would be -38 or so right?
I don’t know what you mean. The “latest version” of the “Level Speech” effect does not have a “threshold” setting.
Which rev is this?
Koz
;nyquist plug-in
;version 3
;type process
;name "Level Speech..."
;action "Leveling speech dynamics..."
;; LevelSpeech.ny by Steve Daulton (www.easyspacepro.com). March 2014
;; Released under terms of the GNU General Public License version 2:
;; http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
;control ratio "Leveling amount (%)" real "" 50 0 100
;control threshold "Threshold (dB)" real "" -25 -50 0
(setq ratio (min 1 (max 0 (/ ratio 100))))
(setq ratio (power ratio (/ 12.0)))
(setq threshold (db-to-linear (min 0 threshold)))
(defun get-env (sig)
(let* ((sr (snd-srate sig))
(risetime 0.5) ; seconds
(falltime 1.0) ; seconds
(lookahead (truncate (* risetime sr)))
(env (snd-follow sig threshold risetime falltime lookahead))
; prevent boost at end of selection
(env (sim env (snd-const 1 dur sr 1)))
(env (extract-abs (+ risetime (/ 20 sr)) (+ risetime (/ 20 sr) dur) env))
(env (sum (- 1 ratio)(mult ratio env)))
(env (snd-exp (diff 0 (snd-log env)))))
env))
;; absolute maximum signal
(defun max-sig (sig)
(if (arrayp sig)
(s-max (snd-abs (aref sig 0))(snd-abs (aref sig 1)))
(snd-abs sig)))
;;; brick wall limiter
(defun limit (s-in)
(let* ((la-time (/ 300.0)) ; lookahead time (seconds)
(la-s (round (* la-time *sound-srate*))) ; lookahead samples
(pad-time (* 3 la-time)) ; padding required at start (s)
(pad-s (* 3 la-s)) ; padding smaples
(padding (snd-const (peak s-in pad-s) 0 *sound-srate* (* 3.0 la-time)))
(peak-env (snd-avg s-in (* 4 la-s) la-s OP-PEAK))
(peak-env (sim padding (at-abs pad-time (cue peak-env))))
(peak-env (extract 0 1 (s-max 1 peak-env))))
(mult s-in
(snd-exp
(mult -1 (snd-log peak-env))))))
(setq dur (get-duration 1))
(cond
((< dur 2) "Error.\nSelection must be at least 2 seconds.")
(t (let ((s (multichan-expand #'limit s)))
(mult 0.99 s (get-env (max-sig s))))))
Without downloading and comparing every download in the topic, I’ve no idea, but this is the “latest version”: https://forum.audacityteam.org/download/file.php?id=9658
This plug-in is now available on the wiki: http://wiki.audacityteam.org/wiki/Nyquist_Effect_Plug-ins#Level_Speech
The current version of LevelSpeech has …
(risetime 0.5) ; seconds
(falltime 1.0) ; seconds
If you change these to …
(risetime 0.02) ; seconds
(falltime 0.10) ; seconds
It responds quicker : the changes in gain are less obvious, less pumping/breathing,
e.g. attached
LevelSpeech2.NY (2.55 KB)
1 Like
I found Levelspeech.ny OK. But clicking on “download” only gets me a notepad text. no .exe file. I’m obviously missing something, but what? Otherwise, this plug-in seems to be what I’m looking for.
Thanks,
Sync45
Nyquist Plug-ins are plain text files, but unlike a normal plain text file, they should NOT have the file name extension “.txt”, they should have the file name extension “.ny”. That “notepad text” file is the plug-in.
If your web browser adds “.txt” to the file name (Safari web browser on Mac is known to do this), then you should change the name back to it’s correct name. For example, if the download says “Levelspeech.ny”, then the name of the download should be “Levelspeech.ny”. If however your web browser changes the name to “Levelspeech.ny.txt”, then you should change it back to “Levelspeech.ny”.
Thanks very much. The installation wasn’t straight-forward; there was a learning curve and some intuition required. But I got it installed and working. This is a fantastic tool. Just what the doctor ordered!
Best regards and thanks again,
Sync45
Can it normalize stereo channels independently?
Split the track, apply the effect, then join the channels back into a stereo track (See: Splitting and Joining Stereo Tracks - Audacity Manual)