It probably can’t have taken long after the first spectrum waterfall display was created, before somebody had a go at creating a waveform that would create an image in the waterfall. We don’t know who ...

Phosphor is a free spectral synthesis tool for MacOS that lets you paint directly onto a spectrogram and hear the result. Here's more details direct from the developer... Phosphor is a free spectral ...

The radio hackers in the audience will be familiar with a spectrogram display, but for the uninitiated, it’s basically a visual representation of how a range of frequencies are changing with time.

Real-time spectrum analysis lets you analyze captured time domain data using a power-versus-frequency spectrogram display. A spectrogram has three axes: The horizontal axis represents frequency. The ...