Creative 70EM896106000 Owners Manual - Page 45

Test Tone/Signal Generator Insert, To Add a Trim Pot Insert

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4 - The PatchMix DSP Mixer Mixer Strip Creation To Add a Trim Pot Insert 1. Right-Click over any of the Insert sections. A pop-up dialog box appears. 2. Select Insert Trim Control from the list of options. A Trim Pot insert appears in the insert location. 3. Click on the Trim Pot insert to view and adjust the controls in the TV screen. 4. To move the Trim Pot to another location, simply drag and drop it into the desired position. Test Tone/Signal Generator Insert The test tone/signal generator insert is a handy troubleshooting aid which outputs a calibrated sine wave, white noise or pink noise. This tool, in combination with an insert meter, allows you to accurately measure the signal gain or attenuation of an internal or external device. The test tone can also be quite handy for tuning up musical instruments. Signal Type (Sine wave, White or Pink Noise) Musical Note Frequencies A = 440 Hz B = 493.88 Hz C = 523.25 Hz D = 587.33 Hz E = 659.26 Hz F = 698.46 Hz G = 783.99 Hz Sine Wave Oscillator Frequency Test Signal Output Level The Sine Wave Oscillator frequency is variable from 20Hz-20kHz. The level is variable from off to +30dB. White Noise is a mixture of all frequencies in the audio spectrum at the same average level (analogous to white light in the visible spectrum). Pink Noise provides equal power distribution per octave. (White noise has more power in the higher octaves.) Pink noise and white noise are both useful as wideband sound sources for measuring speaker response. Using the Test Tone and Meter Inserts for Troubleshooting Sometimes it's useful to have a continuous tone to verify that you have the signal path routed correctly in hardware or software. First insert a Test Tone and/or a Meter(s) into a strip, then follow the tone through the system by ear or by moving the meter. A test tone is quite handy when first setting up your recording software. 1. Right-Click over the Insert section in question. A pop-up dialog box appears. 2. Select Insert Test Tone/Signal Generator from the list of options. A Test Tone insert appears in the insert location. 3. Click on the Test Tone insert to view and adjust the controls in the TV screen. 4. To move the Test Tone to another location, simply drag and drop it into the desired position. E-MU PCIe Digital Audio Systems 45

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4 - The PatchMix DSP Mixer
Mixer Strip Creation
E-MU PCIe Digital Audio Systems
45
²
To Add a Trim Pot Insert
1.
Right-Click
over any of the Insert sections. A pop-up dialog box appears.
2.
Select
Insert Trim Control
from the list of options. A Trim Pot insert appears in the
insert location.
3.
Click on the Trim Pot insert
to view and adjust the controls in the TV screen.
4.
To move the Trim Pot to another location, simply
drag and drop
it into the desired
position.
Test Tone/Signal Generator Insert
²
Musical Note
Frequencies
A = 440 Hz
B = 493.88 Hz
C = 523.25 Hz
D = 587.33 Hz
E = 659.26 Hz
F = 698.46 Hz
G = 783.99 Hz
The test tone/signal generator insert is a handy troubleshooting aid which outputs a
calibrated sine wave, white noise or pink noise. This tool, in combination with an
insert meter, allows you to accurately measure the signal gain or attenuation of an
internal or external device. The test tone can also be quite handy for tuning up musical
instruments.
Signal Type
(Sine wave, White or Pink Noise)
Sine Wave Oscillator Frequency
Test Signal Output Level
The
Sine Wave Oscillator
frequency is variable from 20Hz-20kHz. The level is variable
from off to +30dB.
White Noise
is a mixture of all frequencies in the audio spectrum at the same average
level (analogous to white light in the visible spectrum).
Pink Noise
provides equal power distribution per octave. (White noise has more
power in the higher octaves.) Pink noise and white noise are both useful as wideband
sound sources for measuring speaker response.
²
Using the Test Tone and Meter Inserts for Troubleshooting
Sometimes it’s useful to have a continuous tone to verify that you have the signal
path routed correctly in hardware or software. First insert a Test Tone and/or a
Meter(s) into a strip, then follow the tone through the system by ear or by moving
the meter. A test tone is quite handy when first setting up your recording software.
1.
Right-Click
over the Insert section in question. A pop-up dialog box appears.
2.
Select
Insert Test Tone/Signal Generator
from the list of options. A Test Tone
insert appears in the insert location.
3.
Click on the Test Tone insert
to view and adjust the controls in the TV screen.
4.
To move the Test Tone
to another location, simply
drag and drop
it into the
desired position.