4ms Company WAV Recorder 사용자 설명서 - 페이지 8
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페이지 인쇄Example Patch: Multi-track Recording
Record
Record
Playback
Playback
Busy
Record
Clip
0dB
-∞
-∞
+20dB
Input Gain
IN
Left
Right
Left
OUT
WAV RECORDER
WAV RECORDER
Six-track recording
The diagram above shows how you can use multiple WAV Recorder modules to record more than two
tracks at a time. A common trigger can start and stop all the recordings at the same time. The trigger
can be from a touch pad or any module that generates a manual gate or trigger. Using a passive mult,
active mult, or stacking cables, split this trigger signal and run it to all the Record Trigger jacks.
Patch your audio signals into the IN jacks on the WAV Recorders. Check that the switch is set to
Record on all the modules, and remember to refresh any cards that you've recently inserted. You also
may wish to verify the recording rate settings and set all the modules to the same values.
Turn all the Gain knobs to the same position unless you have a reason to record some channels louder
than others. When you're ready to record, fire the trigger to start recording. When you're done, fire
another trigger to stop. Copy the .wav file from each of the microSD cards onto a computer and
combine the files into a multi-track file using any audio-editing software.
High precision phase alignment
For most purposes, the files can be combined simply by snapping the beginnings to the same point.
However, if you are doing some specific work that requires the phase differences between tracks to be
exact, then you may need to line up the tracks manually. In our tests, a typical difference was between
340uS and 1.7ms (15 to 75 samples at 44.1kHz). This is well under the perceivable latency threshold
of human hearing. If your project requires a tighter tolerance than this, we recommend beginning the
recording with a "clap" or some signal common to all tracks: this will make it easy to see how far to
adjust each track along the time axis.
Record
Playback
Busy
Busy
Record
Clip
Clip
0dB
0dB
-∞
+20dB
Input Gain
Input Gain
IN
IN
Right
Left
OUT
OUT
WAV RECORDER
Trigger (start/stop
Record
Audio channel 1
Audio channel 2
Audio channel 3
Audio channel 4
+20dB
Audio channel 5
Audio channel 6
Right
OUT jacks can be used
for monitoring (optional)
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