apps / 384289230
TestTone
Test Signal Audio Generator
HTLab · Music · $1.99 · US storefront
- rating
- —
- ratings
- —
- updated
- May 3, 2026
- released
- Jul 31, 2010
v1.5.1
visible word pool · 5 words
title 8/30 chars · subtitle 27/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of TestTone's pool that are public — the keyword field is not exposed by any API.
from the listing
This test signal generator is ideal for checking audio equipment and confirming audible frequency ranges.It can play sine, triangle, sawtooth, and square waves from 20 Hz to 20 kHz, as well as white noise and pink noise. Features • You can switch between preset frequencies, white noise, and pink noise using the frequency preset buttons. You can also tap the frequency display area to enter any desired frequency manually. The frequency can also be adjusted using the left/right…
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this page is one tool call
{ "tool": "app", "arguments": { "appId": 384289230, "countries": [ "US" ], "subtitle": true } }
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