SNDTOOLS: REAL-TIME AUDIO DSP AND 3D VISUALIZATION
Ananya Misra, Ge Wang, Perry R. Cook · 2005
We present sndtools, a set of cross platform, open-source tools for simultaneously displaying related audio and visual information in real-time. The distribution includes tools to extract spectral information, perform linear predictive coding analysis and resynthesis, manipulate pitch and time using a phase vocoder, and map text to Morse code. Each tool has closely related audio and visual (graphical or text) components and can be used for instructive purposes or experimentation with sound. We show that hardware-accelerated graphics tools such as OpenGL can be used to enable real-time 3D visualization of DSP algorithms. 1.