MATT Bass Test – Room Acoustic Bass Response Check
Room bass checkReady
- Start quiet, raise slowly
- Check L/R markings first
- Disable audio enhancements
- Runs inside your browser
- No upload, no account
- Nothing saved after you close
Room bass response test with tone bursts
Fast bass bursts expose notes that ring on (room modes) and notes that vanish (cancellations). Even, separated bursts mean a well-behaved room.
What MATT reveals
Room resonances keep sounding after a burst stops, blurring successive bursts.
Subjective version
Listen with eyes closed and note frequency ranges that seem to merge.
Fixing bass problems
Move the seat away from the exact room centre, change sub position, add a second sub or use room correction.
How to Use the
MATT Test
- 01
Seat
sit in your listening position.
- 02
Play
run the 20–200 Hz burst sweep at a moderate level.
- 03
Listen
each burst should be distinct; smearing means ringing room modes.
- 04
Move
repeat in other positions to find the smoothest spot.
What MATT reveals
Room resonances keep sounding after a burst stops, blurring successive bursts. Areas where bursts disappear show cancellations from reflections.
Subjective version
Listen with eyes closed and note frequency ranges that seem to merge. Then try moving the speakers or sub and repeat.
Fixing bass problems
Move the seat away from the exact room centre, change sub position, add a second sub or use room correction. Bass traps help but need size to work.
Related guides and fixes
Learn more in these guides: No sound on Windows, No sound on Mac, Headphones only one side, Speakers crackling, How to test speakers, How to test headphones.
Background
How MATT works
Bursts at a steady pace sweep upward; any ringing fills the gaps between bursts.
Attack transients and noise floor
Each burst starts sharply; the quiet gap between bursts lets you judge decay against the room’s noise floor.
MATT background
Musical articulation test tones
MATT stands for a test of how clearly bass notes are articulated in a room.
The original analog test
The idea started with an analog test recording in the 1980s; our version is generated live.
The digital and subjective sets
Modern versions use precise digital bursts and listening sets; we provide both the burst sweep and a continuous reference.
Frequently Asked Questions
Q.Why do bursts blur?
The room is ringing at that frequency.
Q.Is 20–200 Hz enough?
Yes, room modes dominate below 200 Hz.
Q.Headphones?
No, this test is for rooms.