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Re: [AUDITORY] cleaning background noise (murmur, clatter, ...)



Hi Esra,

A very easy tool for editing recordings containing speech is descript. It will read in the recording and use speech to text to create a transcription. You can then edit the transcript as if you are working in a word editor. Removing a line will remove the audio and video of that portion. In addition, you can use filters (noise canceling etc) to improve sound quality. I have used this a year ago for some podcast recordings and it worked well. Not sure how the software developed in the meantime. I don’t have the paid version anymore. You pay for the file size so video editing will be much more expensive than audio-only editing. In what language did you record? It doesn’t support all languages yet. Also my accent in English introduced many transcription errors.

 

Descript: AI-Powered Podcast & Audio Editor

 

All my best,

Jan-Willem

 

Van: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx> Namens Esra Mungan
Verzonden: donderdag 10 april 2025 13:33
Aan: AUDITORY@xxxxxxxxxxxxxxx
Onderwerp: [AUDITORY] cleaning background noise (murmur, clatter, ...)

 

dear list,

 

since more than a year we are doing a series of weekly public science lectures (as part of a collective resistance against a political crash attempt against our university, hence we call our initiative “academy-in-resistance for free, autonomous, and democratic universities”) at a central public library in istanbul.

we have wonderful attendance, yet, there are, of course, many people who cannot attend these lectures in person. 

all lectures are recorded but because the sound and recording conditions are not ideal (particularly on warm days we need to keep windows open hence we get some background city noise; but also our recording devices and the whole bluetooth sound system are rather modest) we now want to improve the listening quality of our recorded lectures (https://www.youtube.com/@DirenenAkademi; last years’ lectures were added under a more general academic youtube account of ours, https://www.youtube.com/@bogaziciakademi5011).

 

a colleague brought these programs to our attention,

 

however, I understand that these can only be used once the videos are uploaded. what we need though is a way to do the cleaning beforehand (each video recording is about 17-35GB in size).  another supporter offered to do it on adobe premiere and the results were indeed great in terms of speaker clarity, however this time, the timbre of the speaker had quite changed. :)  some of them are well-known scholars, hence such major changes in voice character feels really alienating.  so we are stuck now.

 

is there anything you can suggest us?

many thanks,

esra

 

 

Esra Mungan, PhD

Associate Professor

(left Bogazici University since Dec. 2024)

https://psychology.bogazici.edu.tr/content/esra-mungan (TK/EN)

https://universitybogazici.wordpress.com/ (TK/EN)

https://direnenakademi.wordpress.com/ (TK)

 

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