Audacity Forum

If you split the stereo to mono, invert one of the tracks, most of the mains-hum disappears ...

Sounds like your battery-eliminator has real-bad ripple.

sharcmerman wrote: ↑

Thu Jun 18, 2020 10:57 pm

... but for some reason, the following entries all have RMS issues being too low (and registering differently than when I run my ACX check in Audacity)

If you switch waveform view to db, you can eyeball the RMS ...

dance4ume wrote: ↑

Thu Jun 18, 2020 5:56 pm

My Audacity recordings off utube sound muffled ...

YouTube downgrades the sound & picture quality if the internet is slow.
The lowest quality setting on YouTube does sound muffled.

Spitfire1204 wrote: ↑

Thu Jun 18, 2020 4:49 am

Attachments
Degraded Audio.wav (1.13 MiB)

There's no music in that above 8kHz. That's why it sounds Lo-Fi.
There's no way to rectify that: it's a jigsaw with a (big) piece missing.
The reverb is also irreversible even if the recording was Hi-Fi.

... if I understand you correctly I can't remove the thuds (new word :)) with Audacity. Best thing I can do is prevent them next time I record voice. Correct? Paul-L's de-esser* plugin can be configured to de-thud. Or if there's only a few thuds can manually remove each one with Audacity's spectral...

snap crackle & pop.wav (356.83 KiB) The thuds at 1.155s & 3.777s sound like you blowing on the microphone. They can be prevented by using a pop-shield . ( leave about a hand's-width gap between the pop-shield & the microphone) IMO there is excessive sibilance, (8kHz-12kHz), which is fix...

I have a terrible buzzing in my audio, is there any way to remove it? I've attached a sample. ... audiosample.mp3 (140.37 KiB) Plenty of hiss, but no buzz on that. Can reduce the hiss with Noise Reduction , but it will add digital-artefacts ... ''audiosample'' before-after Noise redction in Audcait...

rayw wrote: ↑

Wed Jun 17, 2020 10:40 am

... I could also bump up low(er) level recordings and THEN squash the floor down too, couldn't i?

I would get the RMS to the required level, (using RMS normalize),
then apply Couture if I needed to bring the noise-floor down, and/or, dry-up slight room-reverb.

martichora wrote: ↑

Wed Jun 17, 2020 6:00 am

Is this just what happens when importing tracks from tape separately?

If you have to re-run the analog tape,
then inevitably the accurate digital-captures thereof will drift out-of-sync.

... I've clicked at some things but I really am only guessing that it's something to do with the knob bottom left, the other controls just make me sound funny. Turning all the knobs to three o'clock & "x1" is what I usually have . That's enough to knock the noise-floor down by 6/7/8dB...