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M/S Master
We will describe in detail the two most common types of processing units used: compressors
(to process dynamics) and equalizers (to correct or shape signals based on frequency).
You can obviously connect all sorts of processors to the inserts of the M/S Master: reverb and
delay effects, a De-esser in the MID INSERT to reduce vocal sibilance, tube processors to add
character to the sound... Whatever suits your needs.
Compressor
Compressors are usually used at the mastering stage to increase level across the entire
frequency spectrum. Loud level peaks are attenuated and the dynamic range of the mix as
a whole is reduced. Afterwards, the signal‘s average level is increased to the original value.
This conventional use of a compressor might or might not work, it depends. Over the last
two decades, dynamic range reduction has steadily increased; almost at the same pace as
sonic quality has decreased – insofar as musically oriented dynamic relationships are used
as benchmark. When optimizing dynamic structures, M/S encoding offers significant advan-
tages over the across-the-board approach of sum compression in L/R format. M/S encoding
allows you to focus on single elements of finished mixes, making it easier to increase overall
loudness while preserving the dynamic range.
Let‘s take, for example, a pop song that sounds fairly balanced, even though the vocals are a
bit too high within the mix. With a compressor in the MID INSERT, you can reduce the level of
the vocals as one of the main elements in the Mid signal. Backing vocals and harmonic instru-
ments, as well as all other elements of the Side signal, are left untouched.
The compressor‘s „Auto Gain“ or similar functions should be avoided. Make-up gain shouldn‘t
be necessary either. Otherwise, the (mono) Mid signal could become too loud and other
central instruments like bass drum, snare, bass guitar, etc. could result too imposing. Unless,
of course, the Mid signal needs a push to come through in the mix due to a very dominant Side
signal. When it comes to depth (front/back positioning), there are some EQ techniques that
are very useful and do not affect the overall level too much. Read the section „Equalizer“.
You can always compress a loud Side signal if there are certain instruments that stand out too
much in that channel. The mix will sound more balanced and compact without affecting the
dynamic range and transient structure of the snare and bass drum.
Heavy compression on the Side signal can be also useful to enhance the room ambience of a
mix.
Compressor
Working with External Processors
Summary of Contents for M/S Master 1020
Page 22: ...Manual M S Master Model 1020...
