dCS 974 User Manual | Manual for Software Version 1.0x |
dCS Ltd | May 2001 |
|
|
Level Meters Submenu
Level Meter OverviewThe Level Meters monitor the Left and Right output signal levels. They work on all PCM signals, and can be used to monitor DSDby setting a DSD to PCM conversion.
The dCS 974 can be used purely as a programmable meter. Because the meters work on the output data, the filters can be used to change the bandwidth of the meters. For example, they can be used to monitor 96kS/s data with a 20kHz bandwidth, by setting the output rate to 44.1kS/s, or the full bandwidth can be examined by setting the output rate to 96kS/s.
The Display Timeout function is disabled while the Level Meters are being used.
Turning the Level Meters OnTo access the Meters, return to the top level menu, select Level Meters and press Set or Status. With an input signal applied, the display will look similar to this:
The bar consists of 27 segments, each representing 1dB. The dashed segments at the right end of each bar are the Peak Hold indicators.
The indicator on the lower of the two bars shows that overloads11 (full scale signals) have occurred in the last monitoring period, on that channel (it says “Over” if you peer closely). The decay of the overload is controlled by the Peak Hold function in the Level Meters menu (below).
Numerical metering to a resolution of 0.1dB can be set up instead, for example for accurate alignment in comparisons. See Meter Type below to do this – the display will change to:
11because the dCS 974 reduces the signal level by 0.01dB, this can only occur if gain is applied, or if the unit is in Format Conversion mode and the input signal goes to full scale.
Manual part no: DOC1241121A1 | Page 57 | Document No: |
Contact dCS on + 44 1799 531 999 | email to: more@dcsltd.co.uk |
(inside the UK replace + 44 with 0) | web site: www.dcsltd.co.uk |