Atmos Bubble and boom! Index measured, not opinion

Knock at the Cabin (2023)

DEMO 2.6 · BUBBLE 1.3 · BOOM 5.4 (with BEQ 7.5). Bass measured on the disc, Atmos. Directed by M. Night Shyamalan. Horror.

Knock at the Cabin (2023) poster
Front
27%
L43%
28%
R47%
100%
C92%
LFE
8%
LFE19%
Surround
4%
Ls12%
3%
Rs12%
2%
Lrs8%
1%
Rrs6%
Wide
1%
Lw2%
1%
Rw2%
Height
0%
Ltf0%
0%
Rtf0%
1%
Ltm2%
1%
Rtm3%
off
Ltr 
off
Rtr 

Bar and top figure — level against the film’s most active channel. Bottom figure — share of the runtime the channel carries signal.

DEMO
2.6 / 10
Bubble
1.3 / 10
Boom, as released
5.4 / 10
Boom with BEQ
7.5 / 10
Measured release
Disc · Atmos · chart by t1g8rsfan
Also in the catalogue
Disc · Atmos / DD+ Atmos — not measured here
Deep bass peak, 10–30 Hz
-27.0 dBFS · with BEQ -19.9
Depth, 10–20 vs 30–60 Hz
-13.9 dB · with BEQ -1.8
Average level, 10–30 Hz
-52.6 dBFS · with BEQ -45.5
Minutes of deep bass
27 min · with BEQ 34 min at ≥ −30 dBFS
Filtered release
its BEQ restores up to 17.4 dB at 10–20 Hz
Tomatometer
67% · as of 16 Sep 2023
Metascore
63 / 100 · as of 11 Oct 2025
Chart scale read
-5 to -65 dBFS
Height uptime
0.2%
LFE uptime
7.9% (shown, not scored)
Dynamic range
27.3 dB
Channels used
14 of 16
Dead channels
Ltr Rtr
Genres
Horror
Tags
action, drama, horror, LGBTQ-related, mystery, post-apocalyptic
Audio
Atmos, DD+ Atmos
Released
1 Feb 2023
First listed
22 Feb 2023
Sources
PerceptualPro + BEQ
Render
older, corrected

Channel by channel, through the film

One lane per speaker, the whole film from left to right. Bar height is how loud that speaker gets (square-root scale against this film's loudest moment, so quiet passages stay visible). The amber line under a lane marks the moments counted as playing, and the figure on the right is their share of the film. For the six height speakers that share is part of BUBBLE.

Front
L
43%
R
47%
C
92%
LFE
LFE
19%
Surround
Ls
12%
Rs
12%
Lrs
8.4%
Rrs
6.2%
Wide
Lw
2.1%
Rw
2.2%
Height
Ltf
0.3%
Rtf
0.3%
Ltm
2.3%
Rtm
2.5%
Ltr
unused
Rtr
unused
0:000:501:40

Read from PerceptualPro's channel-activity graph, pixel by pixel. A lane marked unused never rises out of its line.

See it in the index →  ·  All films