[AlexVRN]

Nikich 777, вот жешь профессионал... надергивать и передергивать. На площадке 2х3 метра с 1 кв звука монитор всунуть просто некуда. Разве что на спину привязать.
Компрессор придает разборчивость голосу. Тихие звуки (которые и формируют объем, тембр...) становятся слышны не только перед колонкой, но и сбоку.
Если микрофон не из киоска за 1500 р., то 3-х полос экволайзера и ручки гейна хватает, чтобы убрать обратную связь. Другое дело, на сколько при этом голос "просядет".

Сообщение от Nikich 777

Хм.. полосовой компрессор там, что ли? Обычный просто таких частотных различий с не компрессированным сигналом не имеет..

Крутил только компрессор, с заводской настройки 50% до 40% разница большая.

The COMPRESS Control
With the ADAPTIVE control activated, the COMPRESS
control reduces the amount of range between louder
and softer singing to produce more even-sounding
vocals. It does so by listening to your singing over time
(less than 30 seconds) and adjusting accordingly.
Typical compressors require multiple controls,
knowledge and experience, and time spent testing and
refining over a performance.With TC-Helicon’s Adaptive
Compress feature, these are not required.
The factory setting of 50% strikes a good balance
between moderating dynamics in your singing without
incurring feedback, a side effect of compression used in
a live mic setting. If you have a high quality monitoring/PA
setup with a flat frequency response and you want more
compression, by all means add more with the
COMPRESS control. Be aware though, that average
quality systems have frequency peaks that may cause
feedback with lots of compression combined with
Adaptive Shape EQ.
o Note that, in order for the Adaptive Compression
feature to work properly. you must have your mic
gain set properly either with by using auto MIC
GAIN or by setting it manually.
Compression:A Primer
You may not notice this effect as easily as with Shape. It
can be quite subtle until you educate your ears to
compression. Following is a very brief description.
We typically sing dynamically, like this (capitals are used
to show louder dynamics):
“I LOVE to watch you down the ”
At acoustic singing levels with no, or very quiet
instrumentation, this would sound fine. When amplified
however, the loud words become strident and even
worse, quiet words can be lost in the instrument sounds.
The louder the PA and band the more pronounced the
loud parts become. Compression seeks to do the
following to your dynamics:
“I LOVE to watch you WALK down the STREET”
Applied appropriately, the difference between loud and
soft is reduced without killing the interesting dynamics in
your performance.

Я только на таробарский перевести могу, может кто чего умного в оригинале прочитает.