Operating Instructions
71
Menu Operations
Menu Item Settings (*: Default setting)
Recording
Settings
LIMITER With two A/D converters for one channel, the linear PCM recorder
always reserves audio signals that are 12dB lower than audio
processed in the normal circuit in addition to the normal audio
signals. If an over-input occurs, recorded data from the point at
which the over-input starts is replaced and compensated. The
limiter prevents sound distortion using a limiter minus time
constant (not available for analog).
Normal circuit
switching
Over-input occurs.
Peak limiter circuit
(–12 dB)
Optimal level is set
automatically
You can set the time required for recovery from the influences of the
digital limiter circuit:
OFF*: The LIMITER function is disabled.
150ms: The linear PCM recorder recovers within 150 milliseconds.
1 sec: The linear PCM recorder recovers within one second.
1 min: The linear PCM recorder recovers within 1 minute.
Notes
The limiter circuit functions to keep the signal level below the
maximum input level. When a loud sound is input suddenly, the excess
part of the sound is automatically set within the range of the maximum
input level in order to prevent distortion.
The limiter circuit of the linear PCM recorder does not compensate for
clipping when audio over 12dB is input. In this case, sound may be
distorted.
When the setting is enabled, the peak value with the limiter circuit in
operation appears if the maximum peak value exceeds 0dB.
The recovery time represents the period when the linear PCM recorder
records sound at a volume 12dB lower than the normal circuit. In
recordings where over-input occurs periodically, the recording volume
may be changed so frequently that it disturbs you. If this occurs, try a
longer recovery time setting.
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