How is this different from a binaural beat?

The rhythm is actually written into the file. A binaural beat is produced by the listener's brain from two slightly different tones, so it needs headphones, whereas this tool literally gates one tone on and off. That makes it audible on any speaker, at the cost of sounding like a pulsing tone rather than a single steady pitch.

What does the raised cosine gate do?

It shapes each pulse so the level rises from silence to full and back rather than switching instantly. Hard edges would add a click on every pulse and spread unwanted high-frequency energy across the spectrum, which is why the smooth curve is used instead of a square gate.

Can I change how long each pulse lasts?

Not independently of the rate. The envelope completes one cycle per pulse period, so a ten hertz setting gives ten pulses a second with each burst lasting a tenth of a second. For bursts with gaps and accents of different lengths, a click track or the test tone generator's burst mode is more flexible.

Why does a high pulse rate sound harsh?

Because the pulses start arriving faster than they can be heard as separate events, so the sound becomes a rough modulated buzz rather than a rhythm. Staying in the lower part of the range keeps each pulse distinct, which is where the effect works as intended.

Can I use it as a practice tempo?

It gives a steady pulse, but without an accent on the first beat of a bar it is harder to keep your place. The metronome adds a wood-block accent on the bar and a choice of beats per bar, and the click track generator does the same with a lighter, shorter sound better suited to playing along with.

Isochronic Tone Generator

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Isochronic Tone Generator gates a steady tone on and off in a repeating pulse, producing an audible rhythm that survives any playback system. The pulse train is shaped so each burst fades in and out rather than switching abruptly.

What is Isochronic Tone Generator?

A carrier tone is multiplied by a repeating envelope, so you hear the tone pulsing at the rate you choose. Set the carrier, the pulse rate, the duration and the level, and generate a file that works on speakers or headphones alike.

The panel offers:

A carrier from twenty to one thousand hertz, defaulting to two hundred.
A pulse rate from half a hertz to forty, defaulting to ten, with a half-hertz step.
A duration from one second to ten minutes, defaulting to sixty.
An amplitude slider from one to one hundred percent, defaulting to seventy.
A note on the page explaining that headphones are not required, because the pulse is amplitude modulation applied identically to both ears.

The gate is a raised cosine rather than a hard switch: the envelope follows half of a cosine wave across each pulse so it begins at silence, reaches full level in the middle of the burst and returns to silence at the end. That shaping is the reason the tool sounds clean. A gate that switched on and off abruptly would stamp a click onto every pulse edge, and because those edges arrive at the pulse rate, the clicks would add a broad spray of high-frequency content to the output rather than a single tidy tone. Softening the edges removes that entirely and leaves a signal whose spectrum contains the carrier and its modulation sidebands around the pulse rate. The practical advantage over a binaural beat is portability: the rhythm is genuinely present in the signal, so it comes through a phone speaker, a laptop, a car stereo or a single earbud, and it does not depend on the two channels being kept apart. The pulse train is generated from the same carrier throughout, so the tone you hear is always the frequency you set and only its level moves; nothing about the pitch changes as the pulses come and go.

Limits worth knowing:

The pulse is applied to the whole file with a constant level, so there is no independent control of burst length separate from the rate.
The carrier range tops out at one thousand hertz, above which the pulses smear into a rough buzz rather than distinct beats.
The output is mono, since there is nothing to separate between the ears.
The pulse rate is fixed for the whole file and cannot change part way through.
There is no fade at the file's own boundaries, only on each pulse, so looping a short file can still click.
The modulation depth is fixed rather than adjustable, so the pulses always reach silence.

Use it when a rhythmic tone is wanted on whatever equipment is available: a background pulse for focus or relaxation on a speaker, a steady rhythmic reference to practise against, or an audible tempo cue for a group. When the effect has to be heard as a single tone with a perceived beat rather than a pulsing one, the binaural generator provides that in stereo, and when the rhythm should have accents and bars rather than regular pulses, the metronome and click track tools are the right shape of signal.

How to use Isochronic Tone Generator

Set the carrier frequency you want to listen to.
Choose the pulse rate, using half-hertz steps to land on the exact rhythm you need.
Set the duration and amplitude.
Generate the file and play it on any system; no headphones are needed.

When to use Isochronic Tone Generator vs related tools

Isochronic Tone Generator is the tool for a rhythmic pulse that has to work on speakers or headphones without ceremony. Binaural Beat Generator produces a similar rhythm as a perception that requires headphones instead. When the rhythm needs accents, downbeats and a defined tempo rather than plain pulses, Metronome and Click Track Generator are the natural tools.

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