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twinQ
- User's guide
Dual Recording Channel
CS
COMPRESSION PROBLEMS
1) Got signal going through but no compression.
Is the compressor switched in?
Is there enough signal?
- A good signal is required to make the compressor operate.
Have you turned the COMPRESSION control high enough?
- is the slope switch turned high enough?
2) It's noisy.
The compressor itself is extremely quiet, but by definition compressors
raise the level of quiet passages; this also means that if there is noise in the
microphone channel (in the audio signal that is being amplified), there will
be more noise on the compressed signal. It's a compromise.
3) It distorts.
No it doesn't! Distortion inside the compressor is virtually impossible,
however it is possible that the microphone amplifier is set with too much
gain; turn down the COMPRESSION control and readjust the microphone
amplifier gain.
4) I can't make the compression gentle enough!
It takes practice. The setting of the Attack control close to fastest is quite
critical, as is the compression control. Also, longer release times lead to a
less noticeable compression effect.
THE GAIN MAKE-UP AMPLIFIER
The JOEMEEK compressor is essentially a passive piece of electronics.
That means that under compression, when the audio signals are being
pushed down in compression, there needs to be a high grade amplifier after
it to bring the audio signal back to normal volume.
Additionally, the new 'TwinQ' has a gain make-up stage with an
integral output volume control. The design of this stage is unusual as the
volume control circuit acts around the amplifier minimising any amplifier
noise.
The VU meter operates before the output gain make-up amplifier so that
the VU meter can be used meaningfully at any output volume setting.
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