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Cleaning up cassette => Digital Music ?
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| theterran |
Doing a favor for a friend and am cleaning up/mastering some old Gospel cassette mixes that were ripped to digital form. There is a fair amount of ambient static (at least -40 to -30 db worth) Yeah I know it ain't trance, but it's still applicable for cleaning up noisy mixes.
These are raw un-mastered mixes in .wav form.
Any ideas on how to best clean up the mix while trying to maintain audio quality?
Also, is there a way to convert a single channel mono signal into L/R Stereo? A few of the songs seem to have been converted on the right channel only...So I was hoping to get at least an L/R Mono if not stereo if I can. Google/youtube yielded nothing specific. What I did try was Mono'ing the /R channel track, then using Mono->Stereo + Stereo enhancement, but I didn't like the results very much.
I've tried a basic de-noizer setup with my standard mastering chain and have gotten decent results, but I can still hear data loss. Is this impossible to fix? I've also made use of Wavelab 7's de-noise utility that analyzes a segment of noise and strips it out, so while the noise was completely removed, the data loss was very audible.
I'm working in Cubase 5 and my chain looks like this :
De-noizer
EQ
Multiband Compressor
PSP audio warmer 2
UV-22HR 16bit High
Limiter
Cheers! |
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| dj_alfi |
| upload one of the songs so we can take a look at it plz. |
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| theterran |
Here's the original .wav file ripped from the casette and my first attempt at cleaning up the mix.
Keep in mind that this is track is meant to be sung over, and the vocals in the mix are for backing...The vocals in the mix are meant to be ducked the way they are...
Original : http://www.mediafire.com/?tgw3e4xxmhvtni8
My attempt : http://www.mediafire.com/?6i3t39p9mzt36do
If you're wondering...I'm currently using a pair of Yamaha hs50m's in a newly treated room.(so still fairly low budget setup) This is also without wavelab's noise stripping algorithm.
You can see a vast difference in noise reduction...But you can also see the data loss as well.
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| J.L. |
If there is an audible hum, try to use a band cutoff and set a very narrow bandwith. typically I find they tend to be either around 60 hz or any multiples of that but it could be different.
If the denoiser utility has a function where you can set a range of frequencies it only affects, try to set it to about 1000 hz and higher.
Otherwise, try to add a bit of reverb and small amounts of stereo delay to broaden the stereo image and cut a bit of the higher frequencies, to mask the apparent noise.
With samples that are hard to salvage, I just give it the telephone/radio effect, and cut off high and low frequencies and only have the mid range. |
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