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
Signal generator

Listen

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
Loudspeaker time alignment test on headphones

Room reflection and loudspeaker directivity auralization

Hear your listening room instead of calculating it. An image source model puts the six first order reflections on headphones, each with its own mute, and you can drag the speakers while it plays. Ideal directivity patterns or a measured VituixCAD polar, plus an analytic room mode bank below the Schroeder frequency.

Room reflections
Room reflection and loudspeaker directivity auralization

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
Woofer excursion distortion test