SpecStream

Real time audio spectrum plot

App gets audio data from microphone and plots the real time spectrum in the form of a scrolling image.

App settings:

- Sample Rate = the Sample Rate (in Hz) at which the microphone will be read. Fixed to 8000 Hz in this free version.

- FFT Buffer Size = the size (in samples) of the audio buffer used to compute the FFT. Fixed to 512 in this free version.

- Min. Displayed Frequency

- Max. Displayed Frequency

- Gain, fixed to 20dB in this free version.

- Displayed Time Window (in milliseconds)

- Frequency Grid Step (in Hz) = will draw horizontal division lines

- Time Grid Step (in milliseconds) = will draw vertical division lines moving together with the plot.

- Theme = app UI theme (light / dark). Affects only the UI. Does not affect the plot colors.

Enjoy :)