From: Cameron Garnham <me@da2ce7.com>
To: sox-users@lists.sourceforge.net
Subject: Sox: Soft and Hard Limiter using Compand
Date: Wed, 20 Nov 2019 17:40:29 +0800 [thread overview]
Message-ID: <211B33F7-EB86-4FA1-AA46-676AD90AEEC8@da2ce7.com> (raw)
Hello Sox Users Mailing List,
Finding the documentation for the „compand“ effect as very difficult and hard to interpret I decided to post here the settings I used.
Soft Limiter: @-12db
compand 0.01,0.1 6:-12,-12,0,-10,0,0 0 -90 0.01
Hard Limiter: @-4db
compand 0,0 -4,-4,0,-4,0,0 0 -90 0
Regain:
gain -n -0.1
It is suitable to use these three effects in a chain.
I have left the last transfer point (0,0) that is usually omitted for clarity. It may be removed without charge to the function.
The Soft Limiter has three points:
(-12,-12): It will not touch any value lower than -12db.
(0,-10): Any value between 0db and -12db will be compressed to -10db, with a soft knee of 6db: this means that at -6db the compressor turned on 100%. (-12db + 6db).
(0,0): default value, no change if omitted.
The fast attack time of 0.01 is set the same as the delay. Release is longer 0.1.
The Hard Limiter also has three points:
(-4,-4): Any value less than -4db is not touched.
(-0,-4): Any value between 0db and -4db is limited completely to -4db.
(0,0): Default value, no change if omitted.
The attack and release, and delay time is 0, meaning the limiter acts instantly.
I hope that this helps some people.
If I have any mistakes in my interpretation, please say so.
Cameron.
_______________________________________________
Sox-users mailing list
Sox-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/sox-users
reply other threads:[~2019-11-20 10:10 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://lists.sourceforge.net/lists/listinfo/sox-users
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=211B33F7-EB86-4FA1-AA46-676AD90AEEC8@da2ce7.com \
--to=sox-users@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/sox.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).