- Brüel & Kjær - manufactuter of acoustical measurement equipment.
- Audio Precision - manufacturer of professional audio test and measurement equipment.
- Rohde & Schwarz - manufacturer of Audio, Video, and Broadcast Measuring Equipment.
- Sound Technology, Inc. - manufacturer of PC-based Test & Measurement instruments.
- Klippel Analyzer system. - PC-based system for loudspeaker driver nonlinear analysis.
- DRA Labs - manufacturer of MLSSA - Acoustical Measurement Systems.
- Audiomatica - manufacturer of CLIO electro-acoustic measurement system.
- Aurora software - suite of software plug-ins for automated audio measurements and auralization.
- Easera software - software for acoustic measurements.
- KK international - manufacturer of loudspeaker test and measuring systems.
- Energy Time Frequency - PC based room acoustic measurement system.
- Gold-Line TEF-20 - Time Delay Spectrometry measurement system.
- Liberty Instruments - maker of the Praxis audio measurement system.
- WinMls - software for acoustical measurements.
- Kirchner elektronik - manufacturer of ATB PC software for loudspeaker response measurements.
- WinAudioMLS - software
for room acoustics measurements.
- Sample Champion - software for room acoustics measurements and loudspeaker evaluation.
- Hobby Box - software for loudspeaker response measurements.
- True RTA - realtime spectrum analyzer.
- SATlive - software for audio measurements.
- REW - software for room acoustical measurements.
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