# Signal Generator - Tone Audio — Frequency and Sound Test Tool

> Professional audio signal generator for precise tone and noise creation. (iPhone/iPad app by Trichy Commercial Private Limited.)

- Source: https://appshunter.io/ios/app/signal-generator-tone-audio/id6756696384 (this page in markdown: same URL + `.md`)
- Developer: [Trichy Commercial Private Limited](https://appshunter.io/developer/1588876379)
- Category: Music, Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2025-12-18
- Data updated: 2026-06-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/signal-generator-tone-audio/id6756696384/reviews.md

## What is Signal Generator?

PROFESSIONAL AUDIO SIGNAL GENERATION

Signal Generator transforms your iPhone and iPad into a professional-grade audio signal generator. Create laboratory-accurate sine waves, square waves, white noise, and pink noise from 20Hz to 20kHz with precision and reliability.

Whether you are an audio engineer testing speakers, a musician tuning instruments, a sound technician calibrating equipment, or a home theater enthusiast optimizing your setup, Signal Generator delivers the accuracy you need.

PRECISION WAVEFORMS

Generate four essential waveform types with laboratory accuracy:

- Sine Wave: Pure tonal frequencies for precise audio testing
- Square Wave: Rich harmonic content for equipment testing
- White Noise: Full spectrum noise for acoustic analysis
- Pink Noise: Balanced spectrum for room calibration and speaker testing

INTUITIVE FREQUENCY CONTROL

Navigate the entire audible spectrum with smooth, glitch-free control:

- Frequency Range: 20Hz to 20,000Hz
- Three Resolution Modes: Octave, 1/3 Octave, and Fine (1Hz steps)
- Direct Entry: Tap to enter any exact frequency
- Smooth Transitions: No clicks or pops when changing frequencies

PROFESSIONAL FEATURES

- Channel Routing: Output to stereo, left only, right only, or inverted right for pseudo-balanced testing
- Wobble Mode: Warble-tone generation for acoustic measurements and room analysis
- Octave Band Noise: Band-limited pink and white noise for targeted frequency testing
- Background Audio: Continue signal generation while using other apps
- Soft Mute: Gentle fade to prevent speaker damage from sudden stops

REAL-TIME VISUALIZATION

Watch your waveforms come to life with a real-time oscilloscope display. See exactly what signal is being generated and verify your output visually.

SAVE YOUR SETTINGS

Create and save unlimited presets for quick access to your most-used configurations. Perfect for standardized testing procedures or frequently used calibration tones.

COMMON USES

- Speaker Testing: Verify frequency response of speakers and headphones
- Subwoofer Calibration: Find the perfect crossover point with precise low-frequency tones
- Room Acoustics: Identify standing waves and room modes
- Hearing Tests: Generate specific frequencies for audiometric testing
- Instrument Tuning: Create reference pitches for tuning
- Audio Equipment Testing: Verify signal path and equipment performance
- Sound System Calibration: Balance levels across frequency spectrum
- Education: Demonstrate audio principles in classroom settings

TECHNICAL SPECIFICATIONS

- Sample Rate: 44.1kHz
- Frequency Range: 20Hz - 20,000Hz
- Frequency Accuracy: Laboratory grade
- Waveform Types: Sine, Square, White Noise, Pink Noise
- Noise Filtering: ANSI/IEC compliant octave band filters
- Channel Modes: Stereo, Left, Right, Inverted Right

DESIGNED FOR PROFESSIONALS

Signal Generator is built by audio professionals for audio professionals. No advertisements. No subscriptions. No internet connection required. Just pure, accurate signal generation when you need it.

Download Signal Generator today and experience professional audio testing on your iOS device.

Privacy Policy: https://audiomillo.com/privacy
Terms of Service: https://audiomillo.com/eula

## Key features

- Generate sine, square, white, and pink noise
- Frequency range 20Hz to 20kHz
- Multiple frequency resolution modes
- Real-time oscilloscope display
- Save unlimited presets
- Background audio playback
- Channel routing options

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/signal-generator-tone-audio/id6756696384/reviews.md

### 1/5 — Waste of money

*2026-03-04*

Bought it worked for 30 seconds that’s it 5h1t

## Frequently asked questions about Signal Generator

### What waveforms can Signal Generator produce?

Signal Generator can produce four essential waveform types with laboratory accuracy: Sine Wave for pure tonal frequencies, Square Wave for equipment testing, White Noise for full spectrum analysis, and Pink Noise for room calibration and speaker testing.

### What is the frequency range and accuracy of Signal Generator?

Signal Generator covers the entire audible spectrum from 20Hz to 20,000Hz. The frequency accuracy is described as laboratory grade, ensuring precision for professional audio tasks.

### Can I save my custom settings in Signal Generator?

Yes, Signal Generator allows you to create and save unlimited presets. This feature is perfect for quickly accessing your most-used configurations for standardized testing procedures or frequently used calibration tones.

### Does Signal Generator have ads?

No, Signal Generator is designed without advertisements. The app explicitly states 'No advertisements' in its description, providing an uninterrupted user experience.

### What devices is Signal Generator compatible with?

Signal Generator is designed for use on both iPhone and iPad devices. Its professional-grade audio signal generation capabilities are available across these Apple platforms.

### Does Signal Generator require an internet connection?

No, Signal Generator does not require an internet connection to operate. It is designed to function offline, allowing for reliable use in any environment without connectivity concerns.

### What are the common uses for Signal Generator?

Common uses include speaker and subwoofer calibration, room acoustics analysis, hearing tests, instrument tuning, audio equipment testing, and sound system calibration. It's also useful for demonstrating audio principles in educational settings.

### How does Signal Generator handle frequency changes?

Signal Generator offers smooth, glitch-free transitions when changing frequencies. It supports Octave, 1/3 Octave, and Fine (1Hz steps) resolution modes, and you can also enter frequencies directly for precise control.

## Version history (last 1 release)

### 1.0.0 — 2025-12-19

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-30.*