Stereo Signal Generator

Basic

The Signal Generator produces test signals for audio system measurement and calibration.

Documentation

Apps Features Specs

Found in These Apps

Key Features

Sine, square, triangle, sawtooth waveforms

White and pink noise (random, pseudorandom, MLS)

Linear and logarithmic frequency sweeps

Dual-channel with independent control

Arbitrary frequency and phase

Real-time STI and STIPA signal generator (Pro Feature)

Multi-channel Output: It may be a stereo signal generator, but the left and right output signals can each be routed to up to 8 output channels.

Multiple Independent Generators: 3 different noise generators, a sine-sweep (chirp) generator, and 2 periodic signal generators can all be operated independently, which means any combination of them can be included in each (left or right) output, simultaneously.

Specifications

Output: Up to 8 channels selectable for each of Left and Right output signals, selected from any available physical or virtual output channels
Amplitude Type: %, dB
Amplitude: Independent adjustment for each signal type
Pan: -100% to 100%, Independent adjustment for each signal type
Pan Type: Linear, Shelf
Polarity Inversion: Independently selectable for Left and Right output

Noise Generators

Random: White, Pink Filtering
MLS: White, Pink Filtering
MLS Sequence Lengths: 31, 63, 127, 255, 511, 1023, 1047, 4095, 8191, 16383, 32767, 65535, 131071, 262143, 524287, 1048575
Pseudorandom: White, Pink Filtering
Pseudorandom Sequence Lengths: 240, 256, 400, 441, 480, 500, 512, 800, 882, 960, 1000, 1024, 1200, 1500, 2000, 2048, 2205, 2400, 3000, 4000, 4096, 4410, 4800, 6000, 8000, 8192, 8820, 9600, 11025, 12000, 16384, 22050, 24000, 32768, 44100, 48000, 65536, 88200, 96000, 131072, 176400, 192000, 262144, 352800, 384000, 524288, 705600, 768000, 1048576

Sweep Generator

Repeat: On/Off
Lower/Upper Frequency Limit
Duration
Duration Units: seconds, samples
Sweep Type: Linear, Logarithmic
Sweep Direction: Up, Down, Up then Down, Down then Up
Synthesis Domain: Time, Frequency

Periodic Signal Generator

Waveforms: Sinusoid, Rectangle, Triangle, Sawtooth
Simultaneous operation of 2 waveforms (A and B)
Frequency Range: 0 Hz (DC) to Nyquist
DC Offset: Independently adjustable for Left and Right output

STI Test Signal Generator

Modulation Depth: 0.55

Supported octave frequency bands and modulation frequencies

Full STI Octave Bands (Hz): 125, 250, 500, 1k, 2k, 4k, 8k
Full STI Modulation Frequencies (Hz): 0.63, 0.80, 1.00, 1.25, 1.60, 2.00, 2.50, 3.15, 4.00, 5.00, 6.25, 8.00, 10.0, 12.5

Full STI (Fast)

Octave Band, Hz	125	250	500	1k	2k	4k	8k
Fm Group 1	1.60 & 8.00	1.00 & 5.00	0.63 & 3.15	2.00 & 10.0	1.25 & 6.25	0.80 & 4.00	2.50 & 12.5
Fm Group 2	1.00 & 5.00	0.63 & 3.15	2.00 & 10.0	1.25 & 6.25	0.80 & 4.00	2.50 & 12.5	1.60 & 8.00
Fm Group 3	0.63 & 3.15	2.00 & 10.0	1.25 & 6.25	0.80 & 4.00	2.50 & 12.5	1.60 & 8.00	1.00 & 5.00
Fm Group 4	2.00 & 10.0	1.25 & 6.25	0.80 & 4.00	2.50 & 12.5	1.60 & 8.00	1.00 & 5.00	0.63 & 3.15
Fm Group 5	1.25 & 6.25	0.80 & 4.00	2.50 & 12.5	1.60 & 8.00	1.00 & 5.00	0.63 & 3.15	2.00 & 10.0
Fm Group 6	0.80 & 4.00	2.50 & 12.5	1.60 & 8.00	1.00 & 5.00	0.63 & 3.15	2.00 & 10.0	1.25 & 6.25
Fm Group 7	2.50 & 12.5	1.60 & 8.00	1.00 & 5.00	0.63 & 3.15	2.00 & 10.0	1.25 & 6.25	0.80 & 4.00

STIPA

Octave Band, Hz	125	250	500	1k	2k	4k	8k
Mod Freq (Fm)	1.60 & 8.00	1.00 & 5.00	0.63 & 3.15	2.00 & 10.0	1.25 & 6.25	0.80 & 4.00	2.50 & 12.5

* Specifications subject to change

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