Atmos Bubble and boom! Index measured, not opinion

How to Train Your Dragon: The Hidden World (2019)

DEMO 4.9 · BUBBLE 2.9 · BOOM 8.2 (with BEQ 8.1). Bass measured on the disc, Atmos. Directed by Dean DeBlois. Adventure, Animation, Family.

How to Train Your Dragon: The Hidden World (2019) poster
Front
27%
L63%
31%
R68%
100%
C95%
LFE
7%
LFE17%
Surround
9%
Ls44%
11%
Rs48%
2%
Lrs12%
2%
Rrs13%
Wide
0%
Lw0%
0%
Rw1%
Height
0%
Ltf1%
1%
Rtf1%
1%
Ltm5%
1%
Rtm10%
off
Ltr 
0%
Rtr0%

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

DEMO
4.9 / 10
Bubble
2.9 / 10
Boom, as released
8.2 / 10
Boom with BEQ
8.1 / 10
Measured release
Disc · Atmos · chart by aron7awol
Deep bass peak, 10–30 Hz
-18.0 dBFS · with BEQ -18.6
Depth, 10–20 vs 30–60 Hz
+8.7 dB · with BEQ +9.2
Average level, 10–30 Hz
-47.1 dBFS · with BEQ -47.7
Minutes of deep bass
27 min · with BEQ 25 min at ≥ −30 dBFS
Hot release
its BEQ turns 10–30 Hz down by up to 5.4 dB
Filtered release
its BEQ restores up to 10.3 dB at 10–20 Hz
Tomatometer
90% · as of 25 Jun 2026
Metascore
71 / 100 · as of 10 Nov 2024
Chart scale read
-5 to -64.8 dBFS
Height uptime
1.2%
LFE uptime
6.7% (shown, not scored)
Dynamic range
23.0 dB
Channels used
15 of 16
Dead channels
Ltr
Genres
Adventure, Animation, Family
Tags
children's, fantasy, medieval, monster
Audio
Atmos
Released
3 Jan 2019
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
63%
R
68%
C
94%
LFE
LFE
17%
Surround
Ls
43%
Rs
48%
Lrs
12%
Rrs
13%
Wide
Lw
0.3%
Rw
0.6%
Height
Ltf
1.3%
Rtf
1.4%
Ltm
4.6%
Rtm
9.6%
Ltr
unused
Rtr
0.1%
0:000:521:44

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

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