The PWM signal is put out from the computer sound card.
Metatron Soft Labs
It is a great tool for science and spiritual exploration.
Generate tones for aligning radio audio level and calibrating equipment.
Turns your PC into a scientific, professional function generator.
Brain Wave Generator is actually a brain simulator to enhance your brain power.
This software allows you to convert your WAV files into Mp3 and OGG files.
HiFi-soft Co., Ltd.
HiFi MP3 WAV Converter lets you re-encode any MP3 file into WAV and vice versa.
Allok Soft Inc.
Allok MP3 WAV Converter which can convert all audio formats to wav formats.
4G-Soft MonoReport was designed to be a handy report generator.
Signal generator and offline oscillosocpe with arbitrary wave form generation.
A java visualization of plane wave radiation generator.
PhySim covers ASK, FSK, PSK, QPSK, DPSK, PAM, PWM, PPM, TDM-PAM, PCM,AM, SSB.
Optimal Designs Enterprise
A nonlinear curve fitting program: Lorentzian, Sine, Power, Exponential series.
It generates multi frequency tones based on the compositions of sine waves.
Spyker Software Engineering
A brain teaser where you try to determine the set of simple sine waves responsible for creating a co....
Keithley Instruments Inc.
Create standard waveforms such as sine, square, ramp, pulse, and noise.
AHP3121 is the source of sine, square, triangle, ramp, burst signals.