Noise Removal also performs best when it does not need to do very much work. I would usually leave Noise Removal 'till after other cleaning processes, and with luck it won't be needed at all, or at least only minimally. When testing out the effects to find the optimum settings it is usually adequate (and much quicker) to just test some short sections. The Noise Removal effect in particular needs to be kept to a minimum as too strong a setting will create audible and unpleasant artefacts (usually metallic bubbly sounds) in the music. Having said that, the high-pass filter is fairly harmless to the sound quality unless it is massively overdone, so that's a good step to take first before other processing. Note that when using a high-pass (or low-pass) filter, the filter frequency is defined as the frequency that the attenuation reaches a certain level (often -3dB) but the filter begins to have some effect before that frequency, so a 20Hz high pass filter will reduce the 30Hz range by a small amount, 20Hz by a larger amount, 10 Hz by a substantial amount.Īlso, higher dB/octave settings can cause a bit of ringing on transients. I don't do a lot of vinyl copying, so hopefully others will provide more comprehensive responses, but the general rule with any kind of audio restoration is to keep the processing as gentle as possible.įor example, with rumble filtering I'd try running the high pass filter at 10 Hz 6dB per octave - if that's not enough, then go to 15Hz 12dB/octave and so on until any remaining rumble is sufficiently low to be acceptable (there are no hard and fast rules about what is "acceptable"). Thanks in advance for all the great advice that I have been getting. Noise Reduction 12db, Smoothing 500Hz, Attack/decay 0.50 secsĢ- Are these parameters generally okay? Would you make any changes to them?ģ- Would you make any adjustments to the Workflow? If so, why? 7071, Cutoff 20 Hzġ- Are these parameters generally okay? Would you make any changes to them?Īcquiring 1 sec quiet section from lead-in for Noise Profile (this is normally general vinyl noise, a low roar with some rumble) High Pass Filter: Rolloff -24db, default Filter. Optionally run Chris’ Dynamic Compressor (still undecided on this) Reopen in Audacity (and save “filename_ed_cr.au”) Run ClickRepair (Declick 35,PitchProt on, Decrackle off, wavelet) Remove Subsonic rumble using Audacity High Pass FilterĮxport WAV file to be run thru ClickRepair I borrowed from the experiences of Forum contributiors for my Workflow which is as follows:Ĭapture in Audacity (save as “filename_Raw.au”) It has a nice combination of loud passages as well as some very quiet ones. It does not store any personal data.As my first Audacity Project I have recorded 2 old Ramsey Lewis Trio albums (purchased in the 60s), cutting out some songs that I never cared for and combining 2 albums into one really great album. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics".
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Necessary cookies are absolutely essential for the website to function properly. It is possible that ” wavelet x2” can be a good idea on some occasions. There are some choices for the repair method simple, wavelet, wavelet x2, wavelet x3. But it is not water proof, and sometimes it frees real clicks. I always use this this setting (except for very worn records). This setting lowers the risk for false repairs. I normally always use this setting.īrass instruments have a special sound profile. This lowers the risk for the program to wrongly repair for instance a cymbal. I start with 12 – 17, and depending on the record I stay at this level or I gradually increase up to 40 – 50 or fully automated. I chose a low value for instance 14 for a good record, and a higher value for a worn record.