Tutuner vs FrequencyCat

Why another tuner app? Other tuners uses some pitch detection algorithm which is just an *guess* the tone being played or sang. This guess can be bad or alright, but it will always be just a guess. This app shows real spectrum that is plotted into octave circle, meaning you can really *see* a note being played. Note that overtones will be visible as well. It's very responsive so you can use not only to tune an instrument, but also while singing or playing trumpet or violin. There is a setting (in system preferences) to control how precise vs. responsive a spectrogram should be.

Hide an image inside sound. FrequencyCat is a playful tool for exploring the connection between images, sound, and spectrograms. Choose an image, and FrequencyCat transforms it into a unique audio signal. Play the sound and view its spectrogram, and you’ll see the original image emerge again from the frequencies. With FrequencyCat, you can: - Turn images into sound - View audio spectrograms in real time - Play sounds and reveal the images hidden inside them - Explore how different images create different sounds - Discover the relationship between sound, frequency, and Fourier transforms in an intuitive way There’s no magic behind it. Just frequencies, phases, an inverse Fourier transform, and a little curiosity about sound. Whether you’re interested in acoustics, music, signal processing, or simply wondering what an image might sound like, FrequencyCat gives you a new way to explore. Pick an image. Hear what it sounds like.