Atmos Bubble and boom! Index measured, not opinion

Luca (2021)

DEMO 0.0 · BUBBLE 0.0 · BOOM 4.5 (with BEQ 4.6). Bass measured on the streaming release (Disney+), Atmos / DD+ Atmos. Directed by Enrico Casarosa. Family, Animation, Comedy, Fantasy.

Luca (2021) poster
Front
25%
L57%
25%
R56%
100%
C92%
LFE
1%
LFE3%
Surround
7%
Ls22%
7%
Rs21%
5%
Lrs17%
5%
Rrs17%
Wide
off
Lw 
off
Rw 
Height
off
Ltf 
off
Rtf 
1%
Ltm4%
1%
Rtm4%
off
Ltr 
off
Rtr 

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

DEMO
0.0 / 10
Bubble
0.0 / 10
Boom, as released
4.5 / 10
Boom with BEQ
4.6 / 10
Measured release
Streaming (Disney+) · Atmos / DD+ Atmos · chart by aron7awol
Deep bass peak, 10–30 Hz
-31.1 dBFS · with BEQ -30.2
Depth, 10–20 vs 30–60 Hz
-8.5 dB · with BEQ -8.7
Average level, 10–30 Hz
-59.9 dBFS · with BEQ -59.0
Minutes of deep bass
7 min · with BEQ 7 min at ≥ −30 dBFS
Hot release
its BEQ turns 10–30 Hz down by up to 5.9 dB
Tomatometer
91% · as of 17 Sep 2026
Metascore
71 / 100 · as of 28 Nov 2024
Chart scale read
-10 to -70.3 dBFS
Height uptime
1.2%
LFE uptime
2.9% (shown, not scored)
Dynamic range
20.1 dB
Channels used
10 of 16
Dead channels
Lw Rw Ltf Rtf Ltr Rtr
Genres
Family, Animation, Comedy, Fantasy
Tags
adventure, buddy, comedy, coming-of-age, family, fantasy
Audio
Atmos, DD+ Atmos
Released
13 Jun 2021
First listed
20 Jun 2021
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
56%
C
92%
LFE
LFE
2.9%
Surround
Ls
22%
Rs
21%
Lrs
17%
Rrs
17%
Wide
Lw
unused
Rw
unused
Height
Ltf
unused
Rtf
unused
Ltm
3.6%
Rtm
3.7%
Ltr
unused
Rtr
unused
0:000:481:35

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

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