How to get rid of this irritating noise ?

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misiektoja
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How to get rid of this irritating noise ?

Post by misiektoja » Sat Aug 15, 2009 12:26 pm

Hi everybody,

My HTC phone got crazy and some phone conversations have some kind of noise, i even don't know how to name it. Just take a look at this file:

http://ms.netlandia.pl/audacity/w1.mp3

This noise is present only for the other side of the phone conversation, my voice is OK. Does anyone of you know how to get rid of this in Audacity ?

Regards,

misiektoja

Trebor
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Re: How to get rid of this irritating noise ?

Post by Trebor » Sun Aug 16, 2009 12:20 am

I've had a go at reducing the distortion, (a before & after example attached, wav in zip file),
However I doubt Audacity or any other software could get rid of it completely.
Attachments
I know you're goin' shopping so I'll be quick (before & after).zip
(501.29 KiB) Downloaded 58 times

kozikowski
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Re: How to get rid of this irritating noise ?

Post by kozikowski » Sun Aug 16, 2009 9:01 am

I'd be surprised if you could help it at all. It sounds like a sampling error. Does their phone always do that? Back in the bad old days, we used to get a similar problem when a power supply failed inside a piece of audio equipment. Most of the time it would just hum like crazy, and it would be obvious what happened. Sometimes it would chop the show sound in 60 or 120 snippets per second and it would sound exactly like that clip.

Without ripping the clip apart with the tools, I bet there are really tiny times when the speaker's voice isn't there at all.

Koz

Trebor
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Re: How to get rid of this irritating noise ?

Post by Trebor » Sun Aug 16, 2009 7:27 pm

The distortion reminded me of interference caused by car ignition, (perhaps the other person was in a car with its engine idling).

misiektoja
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Re: How to get rid of this irritating noise ?

Post by misiektoja » Sun Aug 16, 2009 10:29 pm

Trebor wrote:I've had a go at reducing the distortion, (a before & after example attached, wav in zip file),
However I doubt Audacity or any other software could get rid of it completely.
For me it sounds much better :) Can you tell me how did you do that ?

Trebor
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Joined: Sat Dec 27, 2008 5:22 pm
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Re: How to get rid of this irritating noise ?

Post by Trebor » Mon Aug 17, 2009 3:26 am

misiektoja wrote:For me it sounds much better :) Can you tell me how did you do that ?
"Noise removal" in Audacity 1.3, (it's much better than noise reduction in Audacity 1.2), and "equalization".

I've had another go (mp3 in zip)...
I know you're goin' shopping #2.zip
(101.75 KiB) Downloaded 58 times
Unfortunately It's a matter of swapping one type of distortion with another less offensive type of distortion.

misiektoja
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Re: How to get rid of this irritating noise ?

Post by misiektoja » Mon Aug 17, 2009 8:01 am

Trebor wrote:Unfortunately It's a matter of swapping one type of distortion with another less offensive type of distortion.
Yeah, you're right, but as i said before it sounds much, much better and for me it is just acceptable. Thanks for you help !

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