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#1
Posted to rec.audio.tech
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De-fading audio
This one should be easy, I just wanna undo a faded-in/out part of the
audio. Hopefully MATLAB ain't required for this, 'cuz my copy arrives in 2 weeks and I ain't waitin. |
#2
Posted to rec.audio.tech
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De-fading audio
On Aug 22, 7:07 pm, Industrial One wrote:
This one should be easy, Why would one think so? I just wanna undo a faded-in/out part of the audio. Hopefully MATLAB ain't required for this, 'cuz my copy arrives in 2 weeks and I ain't waitin. If the fades were done properly, what you will end up is a cross-fade between your music and noise of equal loudness. Is that what you want? |
#3
Posted to rec.audio.tech
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De-fading audio
On Aug 23, 12:29 am, wrote:
On Aug 22, 7:07 pm, Industrial One wrote: This one should be easy, Why would one think so? Cuz this isn't pitch-shifting. I assume it isn't a science to boost the first couple of samples by 5 dB, the 2nd by 4.99... you get the idea. Just gradually raising the amplitude, just like you do the opposite when you fade-in. If that's possible, then I don't see the logic of the opposite being impossible. Then again, I'm not good at logic. If the fades were done properly, what you will end up is a cross-fade between your music and noise of equal loudness. Is that what you want? Sure, I don't care. This is a song that starts with the host giving a 2-minute intro that for some reason is faded-in. I could give an ape's ass if it'll distort a bit, as long as its straightened. |
#4
Posted to rec.audio.tech
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De-fading audio
Industrial One wrote: On Aug 23, 12:29 am, wrote: On Aug 22, 7:07 pm, Industrial One wrote: This one should be easy, Why would one think so? Cuz this isn't pitch-shifting. I assume it isn't a science to boost the first couple of samples by 5 dB, the 2nd by 4.99... you get the idea. Just gradually raising the amplitude, just like you do the opposite when you fade-in. If that's possible, then I don't see the logic of the opposite being impossible. Then again, I'm not good at logic. Or audio it would seem. How deep is the fade ? Graham |
#5
Posted to rec.audio.tech
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De-fading audio
dpierce wrote ...
Industrial One wrote: This one should be easy, Why would one think so? It's "industrial one", why would one expect anything logical? Perhaps "Radium" on new meds (and a new alias). |
#6
Posted to rec.audio.tech
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De-fading audio
Richard Crowley wrote: dpierce wrote ... Industrial One wrote: This one should be easy, Why would one think so? It's "industrial one", why would one expect anything logical? Perhaps "Radium" on new meds (and a new alias). Come to think of it, it's very much his style. Well spotted. Graham |
#7
Posted to rec.audio.tech
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De-fading audio
"Richard Crowley" wrote in message news dpierce wrote ... Industrial One wrote: This one should be easy, Why would one think so? It's "industrial one", why would one expect anything logical? Perhaps "Radium" on new meds (and a new alias). Radium doesn't use that kind of language. Possibly another Asbergers' though. Jakdedert seems to be knowledgeable on such matters around here. Gareth. |
#8
Posted to rec.audio.tech
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De-fading audio
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#9
Posted to rec.audio.tech
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De-fading audio
On Aug 22, 7:07 pm, Industrial One wrote:
I just wanna undo a faded-in/out part of the audio. Hopefully MATLAB ain't required for this, 'cuz my copy arrives in 2 weeks and I ain't waitin. And if the fades were NOT done properly, what you'll end up with is a cross-fade between the music and VERY distorted music. And I'd bet that's not what you're looking for, either. In otherwords, if what you're looking for is to completely undo the fades and restore the audio to the way it was before the fades, forget it. Ignoring how you'd try and get there, what you're asking for is impossible. |
#10
Posted to rec.audio.tech
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De-fading audio
Industrial One wrote: This one should be easy, I just wanna undo a faded-in/out part of the audio. There are 101 problems with doing this, not least raising the noise level of the faded part. Graham |
#11
Posted to rec.audio.tech
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De-fading audio
"Industrial One" wrote in message ... This one should be easy, I just wanna undo a faded-in/out part of the audio. Hopefully MATLAB ain't required for this, 'cuz my copy arrives in 2 weeks and I ain't waitin. If the original audio is properly dithered, it will fade down into noise. When you de-fade it, you will end up with noise, not the original sound. If the original audio is not properly dithered, it will fade down into distortion. When you de-fade it, you will end up with distortion, not the original sound. |
#12
Posted to rec.audio.tech
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De-fading audio
On Aug 23, 2:34 am, "Chronic Philharmonic"
wrote: "Industrial One" wrote in message ... This one should be easy, I just wanna undo a faded-in/out part of the audio. Hopefully MATLAB ain't required for this, 'cuz my copy arrives in 2 weeks and I ain't waitin. If the original audio is properly dithered, it will fade down into noise. When you de-fade it, you will end up with noise, not the original sound. If the original audio is not properly dithered, it will fade down into distortion. When you de-fade it, you will end up with distortion, not the original sound. Only at the very beginning where the signal may be close to the amplitude of the noise which is like... 3 seconds. Wow. After that, the signal is way above the volume of the noise floor, so I don't see why you're so convinced that it'll scuzz my song up. |
#13
Posted to rec.audio.tech
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De-fading audio
"Industrial One" wrote in message ... On Aug 23, 2:34 am, "Chronic Philharmonic" wrote: "Industrial One" wrote in message ... This one should be easy, I just wanna undo a faded-in/out part of the audio. Hopefully MATLAB ain't required for this, 'cuz my copy arrives in 2 weeks and I ain't waitin. If the original audio is properly dithered, it will fade down into noise. When you de-fade it, you will end up with noise, not the original sound. If the original audio is not properly dithered, it will fade down into distortion. When you de-fade it, you will end up with distortion, not the original sound. Only at the very beginning where the signal may be close to the amplitude of the noise which is like... 3 seconds. Wow. After that, the signal is way above the volume of the noise floor, so I don't see why you're so convinced that it'll scuzz my song up. You didn't say how far down into the scuzz you were trying to reach. As long as the signal-to-scuzz ratio is large enough, the sound quality might be quite acceptable to you. |
#14
Posted to rec.audio.tech
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De-fading audio
Industrial One wrote: Only at the very beginning where the signal may be close to the amplitude of the noise which is like... 3 seconds. Wow. After that, the signal is way above the volume of the noise floor, so I don't see why you're so convinced that it'll scuzz my song up. You need to supply DETAILS big time or *no-one* will be able to help you. Graham |
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