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Fri, 17 Jul 2020 01:52:07 -0700 (PDT) From: Rodolfo Medina To: "Dr. Thomas Tensi" References: <875zan9nm5.fsf@lenovo> <91eb97bf-22f4-9ca4-1731-478d65a0e998@gmx.de> Date: Fri, 17 Jul 2020 08:52:06 +0000 In-Reply-To: <91eb97bf-22f4-9ca4-1731-478d65a0e998@gmx.de> (Thomas Tensi's message of "Fri, 17 Jul 2020 10:38:17 +0200") Message-ID: <87365qsevd.fsf@lenovo> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 X-Headers-End: 1jwM6J-007AWl-3F Subject: Re: Reduce distortion? X-BeenThere: sox-users@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sox-users@lists.sourceforge.net Cc: sox-users@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: sox-users-bounces@lists.sourceforge.net "Dr. Thomas Tensi" writes: > 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)? Thanks you, Thomas... At the address you report, I don't manage to load my example... I click onto `Load example' but nothing happens... And also the other buttons, all inactive for me... Strange... Rodolfo _______________________________________________ Sox-users mailing list Sox-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sox-users