SPAN Plus - FFT Audio Spectrum Analyzer plug-in Fast Fourier transform spectrum analyzer. Stereo, mid-side, surround spectrum analyzer. Stereo correlation meter. Multi-track spectrum comparison. PNG spectrum snapshot saving. K level meter. This plug-in is compatible with Windows (32 and 64-bit Windows XP, Vista, 7 and later versions) and Mac OS X (10.5 and later versions, 32-and 64-bit, Intel processor-based) computers.

Audio Spectrum Analyzer pro Live 2009 - Audio Spectrum Analyzer Level Balistic DIN 45406. musical notes detector. 1/3, 1/6, 1/12, 1/24 Octave frequency displaying. dBFS and RMS Peak Level Meter.Weighting filters dB(A), dB(B) and dB(C). 48000 hz audio stream.

SpectraPLUS - Audio Spectrum Analyzer SpectraPLUS allows you to perform complex audio signal analysis without the use of any other hardware other than your Windows compatible sound card. Real-time FFT analysis of live input.

RAL - Realtime Analyzer Light Quality sound measurement software equivalent to $10,000 hardware. Simple and easy-to-use RTA, Real Time Analyzer. For wide scope of audio and acoustics: car audio, home audio, concert hall and room acoustics, sound analysis and noise measurement.

PAA3 - Handheld Audio Analyzer with USB Interface Handheld Audio Analyzer with USB Interface. # Palm-sized, lightweight audio analyzer for all sound engineers
# 31-band spectrum analyzer, RT60, SPL meter, and more
# Easy operation with built-in microphone and generator
# EQ setting calculation offers advice for boosting and cutting at the touch of a button
# USB interface allows real-time computer operation

Modulation Analyzer The Modulation Analyzer is a complete Test and Measurement tool, incorporating a multitude of innovative features such as a digital FM demodulator, RF spectrum analyzer, oscilloscope, dual channel audio generator, distortion meter, MPX and RDS analyzers and now, also an inbuilt RF Generator.

Invisible Waves - RF Spectrum Analyzer Series of PC-based, RF spectrum analyzers -- specifically designed for the professional audio and video industries. These new analyzers are touted as the world's first, PC-based RF spectrum analyzers which offer automatic charting of open white space (open RF frequency) for use with wireless microphones, in-ear monitors, remote control, security, access control, etc. Model IW1800: 9KHz - 1.8GHz / Model IW3500: 9KHz - 3.5GHz

SA-3052 - Real Time Analyzer The SA-3052 is a microprocessor controlled, one-third octave, real time spectrum analyzer. It is affordable, rugged, reliable, easy to use, fast to setup, and designed and manufactured by audio enthusiasts who have been building spectrum analyzers for twenty years.