Here is an example code with beatFreequency 1 Hz, Pitch frequency 5000 Hz and samplerate 44100. Test Tones Individual audio test tones, for experts. I really can't figure it out on my own, so thankful for all help! Sound Tests Our themed sound tests, playable directly from your web browser. It can create multiple waveforms, sweep, fire single or repeating tone bursts. SigJenny turns your PC into a flexible and powerful audio signal generator for free. A built in sweep algorithm is used by audio hackers to measure frequency repsonses of their amplifiers. What can this be? Some kind of resonance? I tried increasing the sampling rate, but its not changing anything, and using 44100 should be enough up to around 20 KHz, if I understand correctly? Freeware windows Wave Generator use the sound cards output as sine wave output. The two relay output terminals, one normally open and the other normally closed, provide a relay output connection to a PA and/or bell system. It's not for all frequencies but for quite many I can definetly hear a second tone. It works pretty well except that for some pitch frequencies above 4-5 K Hz, there is a second tone generated with lower frequency. horizontal 500Hz/div.I am trying to make a simple signalgenerator for isochronic pulsating sounds.īasically a "beatFrequency" is controlling the amplitude variation of the main (pitch) frequency.
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