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Multi-Channel
Audio Frequency Sweep Generator
v.5.30 |
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- Is intended for adjusting and
measuring parameters of audio equipment.
- Works with 16-, 24- and 32-bit
sound cards at sampling rate ( FS
) up to 400 kHz. WDM, Kernel Streaming
and WASAPI technologies are supported.
- Real-time signal synthesis.
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Produced Signals
- Single Sinusoidal wave form.
- Up to eight independent
oscillatory processes per each channel with
separate frequency, initial phase and amplitude
controls and adjustable noise pad.
- Sweep frequency sinusoidal signals
in independent channels with separately
adjustable span and sweep rate in a linear or
logarithmic time scale.
- Sine Burst of adjustable duration
with the raise and the fall synchronous to the
carrier.
- Square waveform signals.
- Phase-modulated sinusoidal signals.
- Amplitude-modulated sinusoidal
signals.
- Digital mixing of output channels.
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Noise Generator
Modes
- Dithering – addition of white
noise with uniform or triangular amplitude
distribution and value of 1/2 or 1 least
significant bit (LSB) to output signal.
- White noise with uniform, triangle
or normal distribution.
- Pink noise with spectral density
of 1/f.
- Brownian noise with spectral
density of 1/f2.
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Additional Program
Features
- DAC clock frequency shift
compensation.
- Writing signals to file on hard
disk.
- Cyclic playing of written files.
- Half-tone frequency step.
- Rounding to the nearest frequency
coherent to Spectrum Analyzer-Oscillometer FFT.
- Synchronous Start/Stop under
control of Spectrum Analyzer.
- "Remote control" from
other user applications.
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Sinusoidal Signal
Parameters
| Maximum number of channels |
8 |
| Frequency Span |
0.001 Hz ...
FS / 2 |
| Frequency control step |
0.00001 % |
| Level control span (in 24-bit
mode) |
0…-145 dB |
| Level control step |
0.001 dB |
| Phase shift control span |
±360° |
| Phase shift control step |
0.001° |
| Frequency sweep period |
0.001…9999
s |
Total Harmonic and Inter-Modulation
Distortion
in 24-bit mode without DAC contribution |
-145 dB |
- Total Harmonic and Inter-Modulation
Distortion, high precision and stability of a
frequency is limited only to quality of the used
sound card.
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- The Multi-Channel Audio Frequency
Generator demo is completely functional, but the
time of sounding is limited to 15 seconds after
each clicking of the "Start" button.
- The registration removes
demonstration limitation of the Multi-Channel
Audio Generator. See Help (F1)->Registration
for details.
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Frequently
Asked Questions
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| Each program is provided "AS-IS".
No warranties of any kind, expressed or implied, are made
as to it or any medium it may be on. Any remedy for
indirect, consequential, punitive or incidental damages
arising from it, including such from negligence, strict
liability, or breach of warranty or contract, even after
notice of the possibility of such damages will not be
provided. |
