stereocalc
Stereophonic Calculator
Quickly find stereo microphone configurations for specific recording angles with this Android app.
Inspired by and based on the data of Michael Williams’s paper “The stereophonic zoom” (PDF, Citation).
The “Stereophonic Zoom” enables the sound recording engineer to get much nearer to the optimum result in the great majority of recording environments.
—Michael Williams, The stereophonic zoom, page 2
Features
- Set a desired Stereophonic Recording Angle (SRA) and explore combinations of microphone distance and angle to achieve it
- Immediately see angular distortion and reverberation limits for each configuration
- Microphone type switchable to omni mode for finding AB (spaced pair) configurations
- Live, to-scale graphic representation of the two microphones, showing distance and angle between them as well as the recording angle
- Interactive graph of configuration space, modeled after the figures in The stereophonic zoom with a heat map for angular distortion and outlines of reverberation limits
- Angle calculator page for calculating a recording angle from basic length measurements
- Presets for widely used configurations: ORTF, NOS, DIN
- Programmable buttons for user-defined configurations
- Units switchable between metric and imperial
- Angles switchable between full and half (±)
Screenshots
Main activity, showing the microphone view:
Main activity with graph view activated:
Calculating the best recording angle from distance measurements:
Main activity in landscape mode, showing the microphone view in full screen:
