RtFft

$\begin{figure}\begin{center} \epsfig{file = figures/rtfft.eps,width=3.0in} \end{center}\end{figure}$

RtFft is a simple program written using RtAudio, Qt, and FFTW.
RtFft allows for the realtime display of the spectra of an arbitrary number of audio data channels streamed from the input of an attached soundcard.