Freq'n Awesome Tone Generator

This application is perfect for anyone who needs to repair or test speakers. It offers a variety of features that allow you to test woofers, tweeters, and midrange drivers, as well as diagnose issues such as rattles, buzzes, and resonance problems. You can also use it to perform controlled frequency sweeps to break in new speakers.

One of the key features of this app is its ability to generate sine, square, and sawtooth waves with adjustable volume. You can also customize the frequency range from 1Hz to 22kHz, with user-adjustable limits. The app also offers a choice of logarithmic, exponential, or linear sliders, and a real-time visual waveform display. For subwoofer testing, there is a bass-specific sweep from 30Hz to 100Hz. Additionally, you can create custom presets or use the convenient built-in presets for common frequencies like 30Hz, 40Hz, 50Hz, and 60Hz.

The app has a clean and intuitive interface, with support for dark mode. It also offers a professional mode with advanced features such as dual-tone generation with independent controls, the ability to record and save tones as WAV files, and the option to create pulsed tones with controllable pulse rates and duty cycles. You can also use the app for acoustic testing with features like phase inversion and musical note generation with adjustable octaves.

Whether you are a DIY enthusiast or a professional audio technician, this app has everything you need for reliable speaker testing. It can be used offline, making it perfect for field testing without the need for an internet connection. The free version includes essential testing features, but you can upgrade to the Pro Mode with a one-time purchase for access to advanced features.