Clickrepair linux3/14/2023 ![]() To remove the DC-offset use the Effect > Normalize but do NOT apply any normalization, just check the box for DC-offset removal. ![]() If you do have DC-offset then use Audacity to remove this as the first step immediately after capture, before you do any other processing. This will cause the audio to not be centred on the zero line - you can see this more easily if you zoom in a lot on the recorded wave-form. You may wish to see if your soundcard has DC-offset (a reasonably common fault). Ensure that the TT is grounded correctly so that you don't get mains-hum. Do not be tempted to play the record "wet" - IMHO this can damage both the vinyl and potentially your stylus.ĭo clean the stylus thoroughly (don't use an alcohol based solvent as I did - it unglued the diamond tip from the cantilever - oops )and make sure it and the arm are set up and aligned correctly (I treated my deck to a new cartridge prior to doing my vinyl conversion project). I would also add that you should clean the vinyl thoroughly before playing it - this removing the need for some processing. ![]() I totally endorse the use of Brians Davies' ClickRepair tool - as Bill says, it works like magic - one of the best $40 worth I ever spent. Unlike Bill, I tend to record both sides of an LP together and then do the processing - but I do Understand Bill's rationale for working with smaller chunks and later stitching the two sides together. Now we can wait for the other forum regulars to chime in with their opinions.īill's workflow is almost exactly the same as mine - except I mostly don't bother with the "Noise Removal" steps ( I did use Brian Davies' Noise Removal tools on a couple of my LPs which were old blues albums obviously recorded from 78s and at a time prior to the availability of digital processing). To do the best job you need to tweak the de-click, de-crackle and de-noise processes for each LP, so setting up a batch process is probably not in the cards. I then split the recording into songs and export multiple per this description. ![]() Having done this for both LP sides, using the time shift tool I drag the side 2 recording onto the side 1 track.Get a noise sample from the lead-in groove before the music startsĪpply Noise Removal with Noise Reduction no more that 12 dB (I usually use 9 dB) Frequency smoothing 300 Hz, Attack/decay time 0.25 secsĪpply the Amplify effect again (the removal of clicks and pops will usually mean you can do further amplification without clipping).Import de-clicked and de-cracked file back into Audacity, deleting the original recording Process the output of ClickRepair again for de-crackling Process with ClickRepair for removal of clicks and pops While you're there you might as well download DeNoise and DeNoiseLF and try them out, comparing them to what you can do within Audacity.īe prepared to spend some time reading the manuals and experimenting with the software, to determine if what these programs do in comparison to Audacity is worth the time and expense for you.Īmplify (not Normalize - Amplify boosts both channels equally, Normalize boosts each channel independently)Īpply the High Pass Filter, 24 db/octave roll-off, cut-off frequency of 20 - 30 Hz (gets rid of sub-sonic garbage) It is nothing short of magic at removing clicks, pops, and crackle without damaging the audio. My favourite is ClickRepair available here: First of all it depends on if you want to work exclusively in Audacity, or if you're into spending a few bucks on software specifically designed to clean up vinyl recordings.
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