spectrum analyzer guitar tuner play online

Solfeggio is a professional tool for musical lovers, students, researchers, scientists and technical specialists.

The app may capture sounds from microphone or software generator and then show at real time detailed spectrum of audio-signals, their piano equivalent and mathematical geometry.

Application areas:

vocal trainings
precise tuning of musical instruments
accurate and powerful visualization of audio signals
research frequency of voice and other sounds
generation of multi wave audio signals

Visualization features:

time-based wave frame
magnitude spectrum and spectrogram (aka sonogram)
piano equivalent and note notation
flower and spiral geometry
touch scaling of frequency bandwidth

Bonus:
advanced settings and work profiles