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  Remove deficiencies from the wave dadiOH's dandies
Recording Vinyl or Tape to MP3

This is really the most important part. It is likely that the recordings are going to be full of pops/clicks/hiss and other noise and it needs to be removed. Again, there are scads of programs that do this. The problem is that no one program will do it perfectly on all files...sometimes one program does an outstanding job on one file and a terrible job on the next. You really need more than one of them and need to spend some time playing with them, reading the help files, etc.

When using most programs to remove noise, you normally are able to vary the parameters used to detect what you want to remove. You need to acquaint yourself with the meaning of those parameters and how the program uses them. How? Help file, of course. As an example, in Goldwave you can set what it calls "tolerance". It is by default set at 1000 but I have found that at that setting it will mess up some kinds of music, trombone especially. By setting that value higher, you diminish the effectiveness of noise removal but also the possibility of the music getting messed up. I usually start at a "tolerance" of 2000. If that cleans it up, fine; if not, I decrease the tolerance until I find a happy medium. That needs to be done for each wave.

To use Goldwave to remove tape hiss, select a brief portion of the wave - at the start or end - that is only hiss. By "brief" I mean a fraction of a second...perhaps 1/10 second. Copy that to the clipboard and let Goldwave use it as a template.

You need to be careful when you use a program to remove noise...they will often carry it too far resulting in badly distorted sound. Always work on a copy unless the cleaning program automatically makes one...many write the cleaned output to another file automatically. If one program doesn't work well, try another. The most "non-destructive" one I have encountered is WaveRepair. It will also make very minute corrections manually by letting you literally redraw the wave.

A basic understanding of what you are trying to remove is useful too. Assume that a visual representation of the wave file is a straight horizontal line. The clicks and pops are abrupt vertical rises within the line. The noise will have two dimensions...vertical (amplitude) and horizontal. Additionally, the horizontal dimension may vary depending on the vertical position; that is, they might be simple vertical lines or they might be shaped like an inverted "V". To remove them in this example, all that would be necessary is to clip them off and replace the horizontal line. Unfortunately, wave files are much more complex than a simple horizontal line.

There are lots of programs that can be used for cleaning, among them...
Depopper
WavClean
WaveRepair
GoldWave
Popfix
WaveCorrector
I would suggest having more than one as sometimes one works better than another. WavClean is, I think, particularly easy to use. Myfavorite general purpose cleaner is Depopper.

Some others are....
CoolEdit
DartPro 98
Steinberg Clean
Acoustica
The last four are all fairly expensive...DartPro 98, for example is $400.00. If one looks, one can find "alternatives" if one is so inclined.

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