From: "Dr. Thomas Tensi" <t.tensi@gmx.de>
To: sox-users@lists.sourceforge.net
Subject: Re: Reduce distortion?
Date: Fri, 17 Jul 2020 10:38:17 +0200 [thread overview]
Message-ID: <91eb97bf-22f4-9ca4-1731-478d65a0e998@gmx.de> (raw)
In-Reply-To: <875zan9nm5.fsf@lenovo>
Hello Rudolfo,
you wrote:
> I regularly use Sox to mix different audio channels, and I find it a
> fantastic tool.
So do I.
> Now I did some piano home stereo live recording, and the playback
> reveals here and there some distortion, probably because the
> microphones were too close the piano strings. Tomorrow I'll try
> to fix that error, but I like today's recordings and am sorry to
> have to throw them away. Perhaps can Sox help in some way to
> reduce the distortion? Or any other tool? I suppose also a
> little could be all right...
In principle it is hard to get rid of digital distortion. With SoX I
would use some naive mixing trickery like selective low-pass-filtering
the distorted parts or mixing the distorted signal with a
lowpass-filtered and slightly compressed version. This could mask the
critical parts somewhat.
You could also try a research project from the Georgia Tech University
called ClipAway from 2016. I didn't try it myself, but the approach
looks interesting. They have a web-site available where you can upload
your file and get it "declipped".
https://cplaguna-audio.github.io/ClipAway/
Maybe you can report your success (or failure)?
Best regards,
Thomas
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next prev parent reply other threads:[~2020-07-17 8:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 21:05 Reduce distortion? Rodolfo Medina
2020-07-17 8:38 ` Dr. Thomas Tensi [this message]
2020-07-17 8:52 ` Rodolfo Medina
2020-07-17 9:56 ` Dr. Thomas Tensi
2020-07-17 12:33 ` Rodolfo Medina
2020-07-17 12:45 ` Dr. Thomas Tensi
2020-07-17 12:49 ` Måns Rullgård
2020-07-17 13:02 ` Rodolfo Medina
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