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Bootleg Compression - from Bill O'Neil

From: <email address not valid>
Subj: bootleg compression

 

Hello all --

 

While working today, I was listening to "Over the Garden," the new TDOLZ title from 6/13/77 at MSG. Whoever transferred this to CD added waaaay too much compression and really messed up an otherwise listenable tape. Maybe you're wondering "What is compression?" Compression is another audio tool used by recording and live sound engineers. I've talked about multi-tracks, I've talked about EQs, I've talked digital and analog, and now I'm talking compression. I should write a book, I swear to god.

 

Anyway...

 

Compression is achieved using (you guessed it) a compressor. In a nutshell, a compressor is used to limit dynamic range; that is, it is used to make loud parts quieter, thereby making quiet parts louder by comparison. Perhaps you've noticed that FM radio broadcasts are heavily compressed. The next time you hear "Over the Hills..." on the radio, listen particularly to Page's guitar work at the end of the song because this will give you a very clear idea of what a compressor does. As we all know, the ending passage of OTHAFA is very, very quiet. But on the radio, notice how loud it is relative to the rest of the song. Technically, this is an example of "limiting," but limiting is merely an extreme form of compression.

 

With a compressor, the recording or live sound engineer can help control volume fluctuations. Vocals are very well served by compression; the human voice has a tremendous dynamic range, and sometimes this range is too wide for the music being presented. Imagine that the PA is set up such that one of Robert's loud wails fits in nicely with the rest of the band. Now imagine what happens if he were to sing "I been workin' from seven..." This quiet bit would be lost. Enter the compressor. By compressing the vocal signal, Robert's loud scream is kept under control (volume-wise), which means that the overall volume can be adjusted louder, allowing the quieter passages to be heard more clearly.

 

Compression works well on every instrument: guitars sound thicker, drums sound fatter, and bass sounds bassier.

 

However, just like an EQ, a compressor must be used with care. Too much compression virtually removes dynamic range, which makes recordings sound extremely un-lifelike. "Over the Garden" suffers from too much compression. Most of you are familiar with 1977's segue from Black Mountainside into Kashmir. Obviously, in the actual arena during the performance, the arrival of Bonzo and JPJ would have brought quite a large increase in volume. This recording has been so compressed, however, that that enormous explosion of sound has been reduced to a whimpy little pop, no louder than the preceding quiet passage. Yuck.

 

If whoever is transfering these tapes to CD is a member of DG, please set that compression threshold a bit higher.

 

Any other studio toys anyone wants to know about? Or am I speaking into the void, here, and wasting your collective time?

 

Bye,

 

Bill O'Neil
Venice, CA, USA
Maker's Mark is mother's milk

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This Month in
Led Zeppelin History


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November 21, 1968 - Robert becomes a father to a baby girl named Carmen Jane.
November 09, 1968 - Robert marries Maureen in London. Their reception is a performance at the Roundhouse in London
November xx, 1969 - Tempers flare over Atlantic in the UK wanting to release singles
November xx, 1969 - Recording for Led Zeppelin III begins at Olympic Studios in London
November xx, 1970 - Plans are in motion for a Yardbirds reunion
November 08, 1971 - Finally after much anticipation, Untitled is released
November xx, 1972 - Houses Of The Holy is mixed and completed
November 10, 1972 - Led Zeppelin sell out 120,000 tickets in one day
November xx, 1973 - Initial recordings for Physical Graffiti commences at Headley Grange
November 04, 1973 - Led Zeppelin finalize the purchase of Headley Grange to be their new corporate headquarters
November xx, 1974 - The band makes plans and rehearses for the tenth North American tour
November xx, 1975 - Led Zeppelin records Presence in a mere 18 days
November xx, 1976 - Led Zeppelin book into Ezyhire Studios to rehearse new material for an upcoming tour
November 04, 1976 - The Song Remains The Same movie premieres in Europe
November xx, 1977 - Jimmy dispells rumors of Led Zeppelin’s break up
November 06, 1978 - Led Zeppelin purchase and ship new gear to Polar Studios to begin work on a new album
November 10, 1979 - Led Zeppelin and their entire entourage attend an ABBA concert
November 07, 1980 - The band meets with Peter Grant to announce the retirement of Led Zeppelin
November 29, 1999 - The RIAA announced that Led Zeppelin were only the third act in music history to achieve four or more Diamond albums, a Diamond album being awarded for accredited sales of more than 10 million units in the US.
November 01, 2007 - An announcement was made that Jimmy Page had fractured his finger on his left hand after a fall in his garden and the reunion show would be postponed to December 10, 2007.
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