Raven Lite vs RME DigiCheck NG

Raven Lite records, saves, and visualizes sounds as spectrograms and waveforms. It is intended for students, educators, and hobbyists, including people learning about sound, recognizing birdsong, or teaching music. Users can combine waveform, spectrogram, spectrogram slice, and selection spectrum views. It opens WAV, AIF, MP3, and FLAC files, supports any number of audio channels, and lets users choose all channels or a subset. Time-frequency selections can be measured in a selection table and annotated; tables can be saved as text, while views and sound windows can be exported as graphics or copied to the clipboard. Paged sound windows support navigation through recordings of any length, and auto-paging enables visual review faster than real time. Raven Lite runs on Linux, macOS, and Windows. The free demo runs for 10 minutes at a time until registered with a free serial number for uninterrupted use. Installation requires administrator privileges.

RME DigiCheck NG has no write-up on Specifiction yet; its figures are above.