The Faber Electroacoustics Toolbox (FEaT) is a modularized, multi-channel dynamic signal analyzer and data acquisition platform for the Mac.<

FEaT brings powerful new tools to the Macintosh platform for multi-channel, audio-band data acquisition and real-time analysis of electrical, acoustical, and electroacoustic signals and systems. It enables precise measurements of acoustic quantities, such as equivalent and time-weighted sound levels, as well as acoustic and electroacoustic systems, such as listening rooms and loudspeakers. The software is designed to work with any Mac-compatible audio hardware and supports multiple channels of 8, 16, 24, or 32-bit data with sample rates as high as the hardware will support.

Features

• Multi-channel Dual FFT Analyzer for transfer function, impulse response, correlation, time delay, SNR, and other measurements of electrical, acoustical, and
  electroacoustic systems (filter circuits, listening rooms,
  loudspeakers, etc)

• Multi-channel FFT Analyzer for real-time spectral analysis
  of input and output signals

• Multi-channel Meter Bridge for a quick look at input signal
  levels

• Multi-channel Oscilloscope for real-time viewing of input
  signal waveforms

• Sound Level Meter for measuring instantaneous and
  time-averaged sound pressure levels

• X/Y Plotter for measuring relative phase and creating
  Lissajous figures in real time

• Signal Generator for real-time synthesis of various
  waveforms and test signals

• Noise Dosimeter for convenient noise dose measurements
• Hardware-accelerated OpenGL graphics for fast real-time
  plotting

• Quartz-based graphics for high-resolution still images and
  prints

• Advanced control over input and output devices
• Device and individual channel calibration
• Support for units, including Volts, Amps, Pascals, and
  Engineering Units

• Saving complete configurations and data in project files
• Exporting data to ascii text files for easy import into
  other applications

• Work with multiple independent audio devices simultaneously
• No arbitrary limits on how many devices or channels are
  used, or on sample rates or signal formats--these are limited only by
  your hardware

• Modular architecture for rapid development of additional
  tools, with the potential to allow third parties to develop custom
  plug-ins

New in v1.2.1

• Electroacoustics Toolbox now supports quasi-anechoic frequency response measurements. The measured impulse response can be truncated (windowed), which will cause the transfer function measurements to be recomputed based in the shortened impulse response.
• The Meter Bridge tool now correctly saves and restores its selected input device.
• The Dual FFT Analyzer's auto-scale function always sets the vertical scale to 0.2 per division when viewing cross correlation data.
• Using reduced frequency spans in the Dual FFT Analyzer could previously result in corrupted measurements when using the analyzer's built-in excitation signal. This has been repaired.
• Oscilloscope displays are more robust, particularly for large time scales.
• The Spectrogram 3D display no longer gets reset when clicking the Stop All button in the project window.
• Applescript is now supported by the feature-limited, 30-day demo.
• Several other bugs have been fixed.