Vinyl Restoration - How to Get Professional Results, Part Three

While in the previous step was necessary to be careful to leave no click, now we need our best ear to eliminate background noise without affecting the musical material. As noted above, this is a job that is to listen and replay until you are satisfied with the fit. The fully automated filters to remove background noise clicks and always leave some detail or cut spending excessively high frequencies. Stage 3: Removal of noise. Now our record has no clicks or pops and has a background noise even with a profile that will be easier to identify and therefore to suppress. Adobe Audition 3 includes an excellent background noise suppressor that does a great job in most cases. But, in my opinion, the best choice is Z-Noise. Z-Noise Waves is a plugin that makes a really neat, with multiple algorithms to remove noise with minimal side effects. To reduce the noise using the same visual configuration that clicks and pops: Frequency Spectrum display, reverse video mode, displaying the main window 15 seconds of playing time. Let us look now a region of the file without music, for example the silence between two subjects.

We can clearly see the noise, especially at high frequencies, which looks like a fuzzy cloud. Select a region of a few seconds and turn on Z-Noise. Learn how to identify the noise pattern and then remove it from the music program without affecting the rest. We capture this pattern of noise and now seek another selection, 15 to 20 seconds, including music and silence, where background noise is clearly audible. Enable Z-Noise, listen carefully and experiment with Threshold and Reduction settings until the noise disappears. Difference button lets you hear only the noise that is being eliminated, if you hear something more than noise, is that it is affecting the musical material and then it is necessary to reduce the Threshold or the level of noise reduction. Best results are achieved using two passes, with adjustments lighter, one more reduction. Z-Noise includes other adjustments that can experiment for best results. As in the previous stage to apply the filter, in this case Z-Noise, a region important feature or musical passage and compare, listening intently, the difference between the region and the remainder processed raw.

If you are satisfied with the result, perform "Undo? and then apply the filter to the entire file.

It is possible that at this point you are satisfied with the outcome. But removing major noise brings out some more subtle or less noticeable as the "rumble? and the "hum?. To remove the "rumble? is an excellent plugin Arboretum Ray Gun Pro Systems, which also includes other dining options. The "hum? generated by electrical connection problems effectively removes Waves X-Hum. Finally, if you consider that, after noise reduction, recording has become opaque, which has lost some high frequency recommend using the plugin of iZotope Ozone 4. Ozone 4 features a powerful combination of modules such as parametric EQ, harmonic exciter to restore or regenerate the harmonics lost high-frequency filters or noise reduction, a module to improve the stereo image, and so on. We have already completed the restoration of LP and a final work is optional. One of the great differences of digital music with music recorded on analog tape, the dynamic range. 16bit digital music reaches 95dB, while the analogous problems saving tape saturation and background noise, does not exceed 60dB.

This can be corrected, if desired, with a compressor-expander such as the Waves C4. Use a compressor is not easy and requires practice to achieve good results, but the drama will return to the music, increasing the level difference between the sounds faint and strong. Finally we have separate tracks for burning to CD. I recommend leaving about 3 seconds of silence after the end of each unit and 0.2 to 0.3 seconds before the start. With Adobe Audition you can select each item and save the selection as a new file. Comfortable if each track is stored with a prefix of 01_, 02_, etc.., Plus the name of the topic and thus automatically sorted before passing it to CD. The restoration of an LP is a job that requires dedication if you want to achieve a sound comparable to a CD, but it certainly is rewarding and worth the effort.

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