Sonic Frequencies

A Flutter plugin for generating sounds at different frequencies. This plugin can be used to create tones at specific frequencies, generate frequency sweeps, and produce ultrasonic sounds for purposes like repelling insects (mosquitoes, cockroaches, ants, etc.).

Features

Generate pure tones at specific frequencies (20Hz - 20,000Hz+)
Create frequency sweeps from one frequency to another
Control volume and duration of sounds
Predefined frequencies for repelling various insects
Works on both Android and iOS

Installation

Add this to your package's pubspec.yaml file:

dependencies:
  sonic_frequencies: ^0.0.1

Usage

Import the package

import 'package:sonic_frequencies/sonic_frequencies.dart';

Initialize the plugin

final _sonicFrequenciesPlugin = SonicFrequencies();

Generate a tone

// Generate a 440Hz tone (A4 note) at full volume for 3 seconds
await _sonicFrequenciesPlugin.generateTone(
  frequency: 440.0,
  volume: 1.0,
  duration: 3000,
);

// Generate a continuous tone (will play until stopped)
await _sonicFrequenciesPlugin.generateTone(
  frequency: 440.0,
  volume: 0.5,
);

Generate a frequency sweep

// Generate a sweep from 200Hz to 2000Hz over 3 seconds
await _sonicFrequenciesPlugin.generateSweep(
  startFrequency: 200.0,
  endFrequency: 2000.0,
  duration: 3000,
  volume: 0.8,
);

Stop any playing sound

await _sonicFrequenciesPlugin.stopTone();

Insect Repellent Frequencies

The plugin can be used to generate ultrasonic frequencies that may help repel certain insects:

Insect/Pest	Frequency (Hz)
Mosquitoes	18,000 - 22,000
Flies	15,000 - 20,000
Cockroaches	20,000 - 25,000
Ants	22,000 - 28,000
Rodents	25,000 - 30,000

Example usage:

// Generate a tone to repel mosquitoes
await _sonicFrequenciesPlugin.generateTone(
  frequency: 18000.0,
  volume: 1.0,
);

Note: The effectiveness of ultrasonic repellents varies and depends on many factors including the device's speaker capabilities. Most mobile devices can produce frequencies up to around 20,000Hz, but the actual output may vary by device.

Example App

Check out the example app in the example directory for a complete demonstration of all features, including:

Tone generator with adjustable frequency, volume, and duration
Frequency sweep generator
Insect repellent presets
Play/stop controls

Platform Support

Android	iOS
✅	✅