scrubbing

[robjh22]

I sense from my stupid Fostex manual that "scrubbing" means to
clean up an audio file by eliminating noise in the spots where there is no music, this as opposed to an old fashioned hi freq. filter that clips highs throughout the chain. Am I close?

If you know, also please differentiate scrubbing from dolby, though I know I'm mixing a noun ("dolby") and a verb ("scrub").

Thanks,
Rob

[robjh22]

My intuition missed by a mile, so never mind the above post:

audio scrubbing:

"The process of moving within an audio file or tape to locate a particular section. The term originally comes from the days of reel-to-reel players, when rocking a reel would give the impression of scrubbing tape across the head. Many audio scrub tools today allow the user to drag a cursor across the wave form to audition different sections of an audio file."

I still like my idea. Maybe I'll invent it. Though it maybe already got invented 40 years ago, i.e., dolby?

[TexRoadkill]

Huh? Are you talking about noise reduction? NR was needed in the past to overcome tape hiss but with digital recorders and the latest versions of Dolby NR it's not much of an issue.

[Freeform]

from the dolby site:

"Unlike simple noise filters, Dolby NR makes no attempt to remove noise once it has been mixed in with the music. Rather, it prevents noise from being added to the music as it is recorded in the first place.

This two-step process first encodes the music when it is recorded, and then decodes it when the tape is played back. This is why the Dolby noise reduction system in your recorder should be switched on both when you make a cassette and when you play it.

In recording, the Dolby NR circuit makes the quiet parts of the music, which are most susceptible to noise, louder than normal. When the encoded tape is played back, the Dolby NR circuit is switched around to in turn lower the previously boosted parts of the music.

This automatically lowers any noise added to the music by the recording process, and it restores the music to its original form so that nothing is changed or lost but the noise.

As simple as it sounds in theory, highly sophisticated technology is used in all Dolby NR systems to ensure their unique combination of effective noise reduction and freedom from side effects. "

[willovercome]

no scrubbing has nothing to do with noise reduction. it is just sorta like fastforwarding and listening to a tape at the same time in order to locate a specific section.

[grinder]

I use SOS pads for scrubbing.Just rub on the tape to eliminate noisy parts.