Operating instructions

Vidscope-HD User Manual
Manual vidscope-hd v2.doc
30
; "&
Clicking the Audio menu tab puts the Vidscope into an audio mode.
Waveform and Audio vector (phase) are standard, other optional display
modes are included with the extra AudioPlus option pack.
5.1 Audio Waveforms
In Audio Waveform mode, the Timebase up/down buttons vary the
display timebase. The gain buttons allow low amplitude audio signals to
be zoomed up and down. The gain setting does not affect the audio
monitoring via the PC’s speakers.
The timebase can be varied between 2mS and 10 seconds full-scale
width. The nominal (best viewing) position is 100mS. Some adjustment
of brightness and or decay may be necessary for optimum results. The
oscilloscope type triggerring is automatic and occurs on zero crossings,
slightly to the right of the left hand edge.
5.2 Multi-Channel Audio
If you have a source with multi-channel audio content, the channel option
buttons become revealed.
#! is the first stereo pair – and the only one you get if the source is
not multi-channel or enabled as such using Stop Change Audio Settings
in main menu.
#(!( is the second pair in the group in a multi-channel stream. G1 to
G4 are the group selectors in a multi-channel stream.
Whichever pair/group is selected is that indicated in the on-display level
meters and the audio though the PC’s speakers via the wave output
channel on the soundcard mixer if enabled.
5.3 Audio Level Scales
Clicking )8#4)1 button changes the menu to allow
different Audio Scales to be set. These options set both the scale types
and the ballistics for the audio bar graphs shown on the edge of the
waveform display window.
Audio Level Bars
ON/OFF
Audio format
information