True peak indication mode, 2 true peak indication mode – Sonnox Oxford Limiter User Manual
Page 16
8.1 Pro Tools | HDX (AAX DSP) version only
8 RECONSTRUCTION METERING SECTION
want to, by showing how much over unity your inter-sample peaks are. Reduce the
output fader to compensate if you do not want to use the
AUTO COMP feature.
The
Recon Meter in DAC simulation mode will not work correctly unless the samples
are already limited to digital maximum. For example, if the
Recon Meter is presented
with a +3dB over-range sample, it is hard clipped at 0dB and therefore is not registered by
the indicator. The
AUTO COMP section will not attempt to compensate for it. In other
words,
AUTO COMP for over-range inter-sample peaks does not compensate for
samples that are themselves over-range.
8.1.2 True Peak Indication Mode
In this new mode, the true inter-sample peak value of any sample sequence is calculated.
Unlike
DAC Simulation mode it corrects illegal sample values or illegal sequences of
values.
This means that if you choose not to use
SAFE MODE and prefer to use slower attack
times (often with more musical results), the
AUTO COMP section when enabled will now
catch and compress any over-range peaks escaping the main Limiter section. For this
specific case, this gives a different sound to the hard clipping that occurred in the
RTAS-TDM version (using
DAC Simulation mode) and you can choose which version you
prefer by using the new preference under the Sonnox button menu. When
AUTO COMP
is on in
True Peak mode, the clip LEDs should never activate.