Atmos Bubble and boom! Index measured, not opinion

Until Dawn (2025)

DEMO 4.6 · BUBBLE 6.4 · BOOM 3.3 (with BEQ 7.9). Bass measured on the disc, Atmos. Directed by David F. Sandberg. Horror, Mystery.

Until Dawn (2025) poster
Front
31%
L43%
30%
R44%
100%
C85%
LFE
18%
LFE31%
Surround
15%
Ls33%
15%
Rs33%
8%
Lrs23%
8%
Rrs24%
Wide
1%
Lw4%
1%
Rw4%
Height
7%
Ltf22%
7%
Rtf22%
3%
Ltm11%
3%
Rtm11%
1%
Ltr7%
2%
Rtr7%

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

DEMO
4.6 / 10
Bubble
6.4 / 10
Boom, as released
3.3 / 10
Boom with BEQ
7.9 / 10
Measured release
Disc · Atmos · chart by t1g8rsfan
Also in the catalogue
Disc · DD+ Atmos; Disc · DTS-HD MA 5.1 — not measured here
Deep bass peak, 10–30 Hz
-33.9 dBFS · with BEQ -18.3
Depth, 10–20 vs 30–60 Hz
-18.9 dB · with BEQ +3.5
Average level, 10–30 Hz
-62.6 dBFS · with BEQ -47.1
Minutes of deep bass
6 min · with BEQ 31 min at ≥ −30 dBFS
Filtered release
its BEQ restores up to 32.7 dB at 10–20 Hz
Tomatometer
51% · as of 19 Nov 2025
Metascore
47 / 100 · as of 3 Jul 2025
Chart scale read
-10 to -70 dBFS
Height uptime
10.4%
LFE uptime
16.6% (shown, not scored)
Dynamic range
36.4 dB
Channels used
16 of 16
Genres
Horror, Mystery
Tags
horror
Audio
Atmos, DD+ Atmos, DTS-HD MA 5.1
Released
23 Apr 2025
First listed
23 May 2025
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
44%
C
85%
LFE
LFE
31%
Surround
Ls
33%
Rs
33%
Lrs
23%
Rrs
24%
Wide
Lw
4.1%
Rw
3.5%
Height
Ltf
22%
Rtf
22%
Ltm
11%
Rtm
10%
Ltr
7.1%
Rtr
6.5%
0:000:521:43

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

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