Effects and Plug-Ins : Mastering Peak/VU Meters
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DSD Filtering options
In the specific case of a DSD session the VU meter offers three filtering options which allow you to make sure that
your DSD signal is compatible to the AES recommendations concerning the high frequency dither noise content.
These radio buttons let you choose one of three possible filters which will be applied to the DSD signal before it is
measured by the level meter.
The
20k option applies a 20 kHz low pass filter to the signal, thus only the audible audio content is measured.
The
20k-50k option applies a band pass filter with a frequency range of 20 kHz to 40 kHz to the signal. According
to the AES recommendation the signal level in this frequency range should not exceed -28 dB.
The
40k-100k option applies a band pass filter with a frequency range of 50 kHz to 100kHz to the signal. Accord-
ing to the AES recommendation the signal level in this frequency range should not exceed -20 dB.
Measurement Accuracy
Where maximum accuracy is required select High. However, this setting does require extra processing.
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