Atmos Bubble and boom! Index measured, not opinion

The Lord of the Rings: The Two Towers (2002)

DEMO 6.2 · BUBBLE 6.3 · BOOM 6.1 (with BEQ 8.4). Bass measured on the disc, DTS-ES 6.1. Directed by Peter Jackson. Action, Adventure, Fantasy.

The Lord of the Rings: The Two Towers (2002) poster
Front
51%
L82%
50%
R82%
100%
C99%
LFE
15%
LFE42%
Surround
17%
Ls55%
19%
Rs57%
18%
Lrs58%
18%
Rrs56%
Wide
2%
Lw4%
2%
Rw4%
Height
2%
Ltf5%
2%
Rtf4%
7%
Ltm31%
7%
Rtm31%
2%
Ltr5%
2%
Rtr5%

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

DEMO
6.2 / 10
Bubble
6.3 / 10
Boom, as released
6.1 / 10
Boom with BEQ
8.4 / 10
Measured release
Disc · DTS-ES 6.1 · Extended · chart by aron7awol
Also in the catalogue
Disc · Atmos; Disc · DTS-HD MA 6.1; Streaming (HBOMax) · DD+ Atmos — not measured here
Deep bass peak, 10–30 Hz
-28.6 dBFS · with BEQ -21.9
Depth, 10–20 vs 30–60 Hz
-5.5 dB · with BEQ +1.4
Average level, 10–30 Hz
-56.5 dBFS · with BEQ -49.9
Minutes of deep bass
40 min · with BEQ 140 min at ≥ −30 dBFS
Tomatometer
95% · as of 5 Apr 2026
Metascore
87 / 100 · as of 15 Jan 2026
Chart scale read
-10 to -69.8 dBFS
Height uptime
10.9%
LFE uptime
25.1% (shown, not scored)
Dynamic range
27.7 dB
Channels used
16 of 16
Genres
Action, Adventure, Fantasy
Tags
action, adventure, fantasy
Audio
DTS-ES 6.1, Atmos, DTS-HD MA 6.1, DD+ Atmos
Released
18 Dec 2002
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
82%
R
82%
C
99%
LFE
LFE
42%
Surround
Ls
55%
Rs
57%
Lrs
58%
Rrs
56%
Wide
Lw
3.8%
Rw
3.5%
Height
Ltf
4.8%
Rtf
4.4%
Ltm
31%
Rtm
31%
Ltr
4.8%
Rtr
5.4%
0:001:302:59

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

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