Loudspeaker design tools
Well, at least something to experiment with loudspeaker design in mind.
Calculators and visualization
Signal generator
Sine, square and noise straight to your speakers or headphones. Third octave frequency steps, channel routing and polarity inversion. Nothing is recorded and nothing leaves your browser.
Open signal generator
Sound wavelength calculator
Convert sound wavelength to frequency, or frequency to wavelength
Sound wavelength calculator
Vertical reflections calculator
Play with simple vertical reflections, floor bounce and ceiling bounce.
Vertical reflections calculator
Listen
Try crossover filters on headphones
Try ideal IIR filters as two way crossover on headphones.
Try crossover filters on headphones
Try group delay on headphones
Try audibility of group delay on headphones.
Hear group delay on headphones
Loudspeaker time alignment test on headphones
Try time alignment between bass and treble on headphones to simulate moving tweeter closer or farther.
Loudspeaker time alignment test
Try stereo image sharpness
Try effect of frequency response balance to stereo image
Stereo image sharpness test
Woofer excursion distortion test
Play music and an inaudible low frequency tone at the same time, and hear whether the extra cone movement makes your speakers distort. Two independent levels, a clipping indicator so you can tell the browser apart from the speaker, and nothing to install.
Woofer excursion test