Hey, could you please help me to improve two audio-files?
They are from 15-year-old VHS tapes.
The first one is here (killerants):
http://mitglied.lycos.de/rolfmayer1...ekillerants.mp3
The second one is here (blackgold):
http://mitglied.lycos.de/rolfmayer1/sample...leblackgold.mp3
Both are 48000Hz, Stereo, 16 bit
(MP3-Compression: 192 kbit/s)
(Originally uncompressed waves, caputered with 48Khz, 16bit, Stereo).
The first one is too loud, the second
one is too dull.
Please give me some tips.
Thank you.
Full Version: Two bad audio-files from VHS Tapes
What is your setup La Verite? Are you using proper HiFi equipment and quality interconnects?
It would be great if you had or could get the original wav files again.
Are they hifi VHS or from the stationary pickups?
For a start I would look at the files in cool edit spectral view and apply the appropriate lowpass.
Head switching noise is at 60hz so a notch filter at 60 would also help.
Lastly, I would use the noise reduction algo and sweep the entire file after normalizing it. Basically this involves taking a noise print from a part of the file that has no other sound but the noise(likely hiss and hum). This noise is then removed from the entire file.
If you don't have cool edit, maybe there are freeware equivalents but I am not sure.
It is also important that your original wav be captured as perfectly as possible, shielded cables,clean VCR heads,good connections,no clipping, etc, etc.
Are they hifi VHS or from the stationary pickups?
For a start I would look at the files in cool edit spectral view and apply the appropriate lowpass.
Head switching noise is at 60hz so a notch filter at 60 would also help.
Lastly, I would use the noise reduction algo and sweep the entire file after normalizing it. Basically this involves taking a noise print from a part of the file that has no other sound but the noise(likely hiss and hum). This noise is then removed from the entire file.
If you don't have cool edit, maybe there are freeware equivalents but I am not sure.
It is also important that your original wav be captured as perfectly as possible, shielded cables,clean VCR heads,good connections,no clipping, etc, etc.
Both were recorded with the same hobby equipment.
The first one is just a bit too loud, I think thats no real problem.
But the second one sounds that bad on TV, too.
It is a 15-year-old, bought tape from CIC Video GmbH.
Original wave files are 1 GB each.
But why not convert the short samples back to wave?
Are there any good tutorials or could you give me help doing that with CoolEdit ?
The first one is just a bit too loud, I think thats no real problem.
But the second one sounds that bad on TV, too.
It is a 15-year-old, bought tape from CIC Video GmbH.
Original wave files are 1 GB each.
But why not convert the short samples back to wave?
Are there any good tutorials or could you give me help doing that with CoolEdit ?
Encoding and Decoding the samples to mp3 and back to wave makes their quaility just worse. But I don't think there will be a huge quality loss because of the bad original quality 
QUOTE
For a start I would look at the files in cool edit spectral view and apply the appropriate lowpass.
Head switching noise is at 60hz so a notch filter at 60 would also help.
Lastly, I would use the noise reduction algo and sweep the entire file after normalizing it. Basically this involves taking a noise print from a part of the file that has no other sound but the noise(likely hiss and hum). This noise is then removed from the entire file.
Head switching noise is at 60hz so a notch filter at 60 would also help.
Lastly, I would use the noise reduction algo and sweep the entire file after normalizing it. Basically this involves taking a noise print from a part of the file that has no other sound but the noise(likely hiss and hum). This noise is then removed from the entire file.
So, could you give me a detailed guide for this?
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