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.

1.3BUBBLE
5.4BOOM
BEQ 7.5
H0.1
S0.0
C7.1
bed
height
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%
offLtr
offRtr
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.