I’m new to Audacity and I’m really needing help. I’ve been trying for the longest to download ACX Check Plugin and I can’t find it anywhere online. I keep seeing this link: Missing features - Audacity Support
The problem is I only get a document download from this link, nothing I can use though. No plugin or anything. I’m simply wanting to create audio narrative files to be submitted to ACX (Audiobooks) without any rejections afterwards. Any successful knowledge that lead to solutions on this matter will be greatly appreciated. Thank you so much in advance.
No I don’t know how to install a plugin-I just installed Notepad ++ (text editor). I just got this message below-not sure what it all means:
;name “ACX Check”
;author “Steve Daulton”
;copyright “Released under terms of the GNU General Public License version 2”
(defun getfloor ()
;; Calculate RMS where rate=10 Hz, window-size=0.4 seconds.
;; Return the lowest 0.4 to 0.5 s in the selection.
(let ((floor 999)
(window-size (round (* 0.4 sound-srate)))
(setf track (s-rms track 10 window-size))
;; Calculate new length in samples without retaining samples in RAM.
(setf samples (truncate (* len (/ (snd-srate track) sound-srate))))
(do ((val (snd-fetch track) (snd-fetch track))
(count samples (1- count)))
((< count 4) floor) ;stop at last full window.
(setf floor (min floor val)))))
(defun s-rms (sig &optional (rate 100.0) window-size)
;;; Like RMS function but also supports stereo sounds
;;; Stereo RMS is the root mean of all (samples ^ 2) [both channels]
(when (soundp sig)
(return-from s-rms (rms sig rate window-size))
(return-from s-rms (rms sig rate))))
(let (left-ms right-ms rslt step-size)
(setf step-size (round (/ (snd-srate (aref sig 0)) rate)))
(setf window-size step-size))
(setf (aref sig 0) (mult (aref sig 0)(aref sig 0)))
(setf (aref sig 1) (mult (aref sig 1)(aref sig 1)))
(setf left-ms (snd-avg (aref sig 0) window-size step-size OP-AVERAGE))
(setf right-ms (snd-avg (aref sig 1) window-size step-size OP-AVERAGE))
(s-sqrt (mult 0.5 (sum left-ms right-ms)))))
Open and select the work. Analyze > ACX-Check (No OK)
I’m going to start work on the mastering software. Post back if you have trouble.
Oh, This is a terrific time to force your machine to show you File Name Extensions. When you start getting three files with the same name, it’s good to know that one is a .png (picture), one is a .txt (text), and one is a .ny (Nyquist program).
A few notes before we leave ACX-Check. Peak is intentionally slightly quieter than the -3dB standard on purpose. The conversion of your chapter from WAV or Audacity format to MP3 can cause slight volume changes. You will get flagged if your volume gets any louder than -3dB.
There is one internet channel telling people you have to hit peak volume exactly -3dB.
You don’t and you can’t.
Noise is the worst problem. I recommend quieter than -65dB. The standard is -60dB. Again, that’s for safety and most microphone systems can hit that if you’re careful with your environment and and microphone. ACX Audio Lab doesn’t check noise for you, so you’re on your own until the chapter is rejected.
If you created silence anywhere in your chapter, the noise reading will read -inf (infinite) and it will throw an error message. ACX may or may not accept that, but it’s an odd reading and should be avoided.