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SoundID Reference vs MathAudio Room EQ: catalog facts
SoundID Reference	MathAudio Room EQ
Paid Requires a paid license or subscription. Trial availability and licensing depend on the…	Freemium The foobar2000 edition is free; the VST/AU edition requires a license.
Windows, macOS	Windows, macOS
Offers headphone correction profiles Supports speaker calibration workflows	Provides room-correction processing Offers a foobar2000-specific edition
Speaker calibration needs suitable measurement hardware.	A measurement microphone is needed; licensing differs between editions.
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.