Sigma KS-342 manual MS operation, AES/EBU output

KS-342

VU scale These meters conform to the VU standard, providing an averaged level reading. 0 VU marks the reference position.

BBC scale Developed by the British Broadcasting Corporation, this peak meter standard goes from 1 to 7 (each step repre- sents 4 dB) with a fast rise and slow fall time. The reference level is “6”.

Nordic scale Another peak meter type, with 0 again being the reference level, but the readings are from –42 to +12 dBu.

In each case, a peak LED is provided as part of the metering system, which lights at 6 dB below maximum level.

MS operation

MS operation is usually carried out using a specialized micro- phone designed for this kind of recording.

To use the MS facility with channels 1 and 2, make sure that both channels 1 and 2 have their output destination selected as MS.

Note that the dedicated XLR-5 connector can be used with ap- propriately-wired microphones in this mode. It provides phan- tom power, etc. in exactly the same way as the XLR-3 connec- tors, and the line selector switches, etc. should be set appro- priately.

The AUX inputs cannot be used for cascading in this mode.

The fader for channel 1 becomes the width control for the MS signal, and the fader for channel 2 is the level control.

The fader gang switch (1-2) obviously cannot gang the faders in MS mode—instead, it inverts the phase of the signal fed to channel 2.

When monitoring, the L+R mode takes a new meaning, with the decoded left and right signals being decoded.

AES/EBU output

The AES/EBU jack provides digital output in AES/EBU format, at the selectable sampling frequencies of 44.1, 48 or 96 kHz.

The resolution is 20 bits.

15