Atmos Bubble and boom! Index measured, not opinion

The Kid Who Would Be King (2019)

DEMO 7.0 · BUBBLE 6.3 · BOOM 7.7 (with BEQ 7.7). Bass measured on the disc, Atmos. Directed by Joe Cornish. Fantasy, Adventure, Family, Action.

The Kid Who Would Be King (2019) poster
Front
45%
L56%
42%
R55%
100%
C88%
LFE
12%
LFE20%
Surround
24%
Ls45%
25%
Rs46%
9%
Lrs29%
9%
Rrs29%
Wide
1%
Lw4%
1%
Rw4%
Height
1%
Ltf4%
1%
Rtf4%
8%
Ltm22%
9%
Rtm22%
0%
Ltr1%
0%
Rtr1%

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

DEMO
7.0 / 10
Bubble
6.3 / 10
Boom, as released
7.7 / 10
Boom with BEQ
7.7 / 10
Measured release
Disc · Atmos · chart by aron7awol
Deep bass peak, 10–30 Hz
-19.1 dBFS · with BEQ -19.3
Depth, 10–20 vs 30–60 Hz
+9.4 dB · with BEQ +9.0
Average level, 10–30 Hz
-50.5 dBFS · with BEQ -50.7
Minutes of deep bass
17 min · with BEQ 18 min at ≥ −30 dBFS
Sub-bass warning
the disc peaks at -21.5 dBFS at 10 Hz — top of the field; mind ports and driver excursion
Hot release
its BEQ turns 10–30 Hz down by up to 5.2 dB
Tomatometer
90% · as of 10 Oct 2021
Metascore
66 / 100 · as of 27 Oct 2025
Chart scale read
-5 to -64.8 dBFS
Height uptime
8.9%
LFE uptime
19.8% (shown, not scored)
Dynamic range
28.8 dB
Channels used
16 of 16
Genres
Fantasy, Adventure, Family, Action
Tags
adventure, fantasy
Audio
Atmos
Released
16 Jan 2019
First listed
4 Dec 2018
Sources
PerceptualPro + BEQ
Render
current

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
56%
R
55%
C
88%
LFE
LFE
20%
Surround
Ls
45%
Rs
46%
Lrs
29%
Rrs
29%
Wide
Lw
4.2%
Rw
4.1%
Height
Ltf
3.6%
Rtf
3.5%
Ltm
22%
Rtm
22%
Ltr
1.1%
Rtr
1.1%
0:001:002:00

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

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