- #Bulk upload reverb lp Patch#
- #Bulk upload reverb lp code#
- #Bulk upload reverb lp license#
(let((f1 (lp leftch 300)) Common Sub below 300 (setq low-cut (max 0 (min (/ *sound-srate* 2.0) low-cut)))
#Bulk upload reverb lp license#
Released under terms of the GNU General Public License version 2: An implementation of reverb.lsp by Roger Dannenberg.
(setq damping 50) High frequency damping (%) I think they are self explanatory, but only change the number in those first 5 lines, any other changes are likely to break the code.Ĭode: Select all (setq time 2.5) Reverberation time in seconds The first 5 lines (before the License information) are the reverb settings. On stereo tracks it will produce a stereo reverb.
#Bulk upload reverb lp code#
Here is some code for you to play with (from "Reverb1) that adds reverb. (not easy without learning a bit about Nyquist programming). You could modify the code of the Nyquist Reverb effect so that the control settings are predefined variables, and that the output is assigned to a local variable, then add the "Trim Silence" code after the Reverb code, replacing "s" with the local variable.This would allow you to add a Nyquist reverb effect to the Chain.
#Bulk upload reverb lp Patch#
You could compile Audacity from the source code with the patch (mentioned previously) that adds support for Nyquist (not easy on Windows). You could use multiple instances of the (simple) Echo effect in the same chain with different settings each time to create a more complex echo effect. The Nyquist Prompt in the Chain will use whatever code is currently in the Nyquist Prompt window, so that means that you cannot add two different instances of Nyquist code. If you use the Nyquist Prompt outside of the Chain, the code that is used in the Chain will also change. When you close Audacity the code is gone. Note that the major limitation of using the Nyquist Prompt in a chain is that the code in the Nyquist Prompt is not saved in the Chain. You set up a Chain with the Nyquist Prompt (as already described) with "code to apply reverb" in the Nyquist prompt. (For "distortion" you could use the " Leveller" effect on a heavy setting). Unfortunately, without my patch (mentioned previously) you are limited to the effects that are listed in the Edit Chains dialogue, and this does not include reverb or other complex echo effects. 
Rbdavis wrote:Would the Nyquist approach also allow a distortion or more complex echo effect to be included in a chain? Ogg format offers similar quality as MP3 (often slightly better) and does not have this problem. This is a limitation of the MP3 format and makes MP3s unsuitable for looping.
The MP3 format always adds a little bit of silence at the beginning of the file. Encoding to a lossy format (such as MP3, WMA, Ogg.) should be done as the final step, and it is usually best to keep an uncompressed (WAV) backup of the file just in case you ever want to do more editing. It is always best (whenever possible) to work with uncompressed audio (such as WAV files). If you then either export as MP3, or export as WAV and re-encode to MP3 with an external encoder, there will be some sound quality loss when it is encoded. Audacity only works on uncompressed data, so the MP3 would be decoded (automatically) when it is imported. However if the files are in a compressed format such as MP3, note that: 
Short files are trimmed very close to start/end of the audio. The method described in my previous post should do a good job with that. Rbdavis wrote:my example case is 600 short speech files for a game
Now apply the Chain to your files (I recommend that you test it on just one or two files first). Click OK to exit the Edit Chain dialogue. Add an Export step (for example "Export WAV") to the chain after the "empty" Chain command. You can set it to a different value, but should be a negative number. This is the threshold (in dB) for what will be considered to be "silence" at the beginning and end of the track. (multichan-expand #'extract-abs start end (cue s)))) (end (-(get-duration 1)(/ end-count my-srate)))) (mysound (snd-avg mysound 100 100 op-peak)) (let* ((mysound (if (arrayp s)(snd-maxv (aref s 0)(aref s 1)) s)) Code: Select all (setq thresh -48) silence threshold
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