Two Channel Display for
(I need some people to make a
recording that I can use to illustrate this mode. HELP!)
This display can be useful for
vocalist and violinist working to refine their intonation together.
| Dual Channel Input. To make a stereo input work for almost all
Windows soundcards, you need to send the microphone cables to a
pre-amplifier and then connect to the Line-In
jack on the sound card.
The straight microphone input is one channel (monaural) only. Some
sound cards use one jack that doubles for microphone and Line-In;
you need to select the appropriate one through the Recording Control.
The display adds a second trace
in the upper graph, in a different color. And double magnified graphs
appear below the splitter bar. The color in the cents labeling
signifies which is which.
Options | Transpose 2nd Channel
is useful if the range of the two performers is different. For
instance, against a low male singer, it may work best to transpose the
violin Down 1 Octave (assuming
it is on channel 2). Work out the adjustments of the highest and lowest
notes in the Options | Pitch of SA
& Range dialog so that both performers are included.
You may use the Silence
Pause Threshold in the Instrument
Properties dialog to help filter out crossover from the other
channel. Raise it until whatever sounds bled into the other microphone
aren't tuned. In this case, use View
| Always Trace to keep the trace moving
smoothly if you want. [separate thresholds for each channel - in the
An experiment in a different way of
comparing the pitches is given in View
| Multiview. When this is unchecked, instead of two lower
graphs, both the graphs are drawn superimposed as one - with the second
channel in gray. This would only be useful for practicing playing in
unison. but the eye might find it useful to have the traces
superimposed instead of having to compare two separate graphs.
Back to the Index