Atmos Bubble and boom! Index measured, not opinion

Snowpiercer (2013)

DEMO 7.1 · BUBBLE 8.6 · BOOM 5.9 (with BEQ 8.0). Bass measured on the disc, DTS-HD MA 5.1. Directed by Bong Joon-ho. Science Fiction, Drama, Action.

Snowpiercer (2013) poster
Front
27%
L55%
26%
R56%
100%
C95%
LFE
12%
LFE27%
Surround
14%
Ls39%
13%
Rs40%
9%
Lrs33%
9%
Rrs34%
Wide
19%
Lw44%
19%
Rw43%
Height
11%
Ltf30%
11%
Rtf29%
6%
Ltm27%
6%
Rtm25%
5%
Ltr19%
5%
Rtr18%

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

DEMO
7.1 / 10
Bubble
8.6 / 10
Boom, as released
5.9 / 10
Boom with BEQ
8.0 / 10
Measured release
Disc · DTS-HD MA 5.1 · chart by aron7awol
Also in the catalogue
Disc · Atmos — not measured here
Deep bass peak, 10–30 Hz
-26.5 dBFS · with BEQ -21.0
Depth, 10–20 vs 30–60 Hz
-5.0 dB · with BEQ +1.3
Average level, 10–30 Hz
-52.3 dBFS · with BEQ -46.9
Minutes of deep bass
17 min · with BEQ 47 min at ≥ −30 dBFS
Tomatometer
94% · as of 10 Oct 2024
Metascore
84 / 100 · as of 30 Aug 2025
Chart scale read
-10 to -70.3 dBFS
Height uptime
22.7%
LFE uptime
13.7% (shown, not scored)
Dynamic range
30.6 dB
Channels used
16 of 16
Genres
Science Fiction, Drama, Action
Tags
action, drama, dystopian, post-apocalyptic, science fiction, steampunk
Audio
DTS-HD MA 5.1, Atmos
Released
1 Aug 2013
First listed
4 Dec 2018
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
55%
R
56%
C
95%
LFE
LFE
27%
Surround
Ls
39%
Rs
40%
Lrs
33%
Rrs
34%
Wide
Lw
43%
Rw
42%
Height
Ltf
30%
Rtf
29%
Ltm
27%
Rtm
25%
Ltr
19%
Rtr
18%
0:001:042:07

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

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