Measurements Using PC

Frequency Analyzer
Author : Relisoft
Licence Type : Freeware
Size : 0.01 MB
Hits : 748
Description : Whistle a melody and watch this program graph the pitch in real time. The Frequency Analyzer (download now) technically speaking performs a Fast Fourier Transform of the sound (you need a sound card and a microphone to use this program). What it means is that it analyzes your voice and splits it into its component frequencies. Watch patterns of speech, the harmonics of vowels and the noise of sibilants. The size of the program is only 148k! (zipped 74k) Can you believe that?! There are web pages that make you download more than that just to be able to look at them.
Author : R.S Horne
Licence Type : Freeware
Size : 0.24 MB
Hits : 806
Description : Spectrogram version 5.0 is a freeware dual channel audio spectrum analyzer for Windows 95/98/NT which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card.
BIP Oscilloscope
Author : Marcel Veldhuizen
Licence Type : Freeware
Size : 0.15 MB
Hits : 1386
Description : The BIP Oscilloscope uses the sound card's input to measure signals. This means that the quality of the scope depends on the quality of your sound card.
Author : Konstantin Zeldovich
Licence Type : Trial
Size : 0.72 MB
Hits : 1071
Description : Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit. Zelscope features the interface of a traditional oscilloscope, with conventional gain, offset, timebase, and trigger controls. As a real-time spectrum analyzer, Zelscope can display the amplitude and phase components of the spectrum.