Atmos Bubble and boom! Index measured, not opinion

Train Dreams (2025)

DEMO 0.0 · BUBBLE 0.0 · BOOM 5.7 (with BEQ 6.8). Bass measured on the disc, DD+ Atmos. Directed by Clint Bentley. Drama.

Train Dreams (2025) poster
0.0BUBBLE
5.7BOOM
BEQ 6.8

Train Dreams ()DEMO 0.06 dead102 min · PG-13

DramaDisc · DD+ AtmosIMDb ↗TomatometerRT 95%
H0.2
S0.8
C1.4
bed
height
Front
20%
L42%
23%
R47%
100%
C87%
LFE
3%
LFE5%
Surround
3%
Ls8%
3%
Rs9%
6%
Lrs19%
6%
Rrs23%
Wide
off
Lw 
off
Rw 
Height
off
Ltf 
off
Rtf 
1%
Ltm3%
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
5.7 / 10
Boom with BEQ
6.8 / 10
Measured release
Disc · DD+ Atmos · chart by kaelaria
Deep bass peak, 10–30 Hz
-26.0 dBFS · with BEQ -23.0
Depth, 10–20 vs 30–60 Hz
+1.1 dB · with BEQ +6.6
Average level, 10–30 Hz
-57.5 dBFS · with BEQ -54.5
Minutes of deep bass
2 min · with BEQ 10 min at ≥ −30 dBFS
Filtered release
its BEQ restores up to 11.0 dB at 10–20 Hz
Tomatometer
95% · as of 5 Jan 2026
Chart scale read
-10 to -70.3 dBFS
Height uptime
0.4%
LFE uptime
0.9% (shown, not scored)
Dynamic range
27.6 dB
Channels used
10 of 16
Dead channels
Lw Rw Ltf Rtf Ltr Rtr
Genres
Drama
Tags
drama, period drama
Audio
DD+ Atmos
Released
5 Nov 2025
First listed
23 Nov 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
42%
R
47%
C
87%
LFE
LFE
4.5%
Surround
Ls
8.2%
Rs
9.1%
Lrs
19%
Rrs
23%
Wide
Lw
unused
Rw
unused
Height
Ltf
unused
Rtf
unused
Ltm
2.8%
Rtm
3.6%
Ltr
unused
Rtr
unused
0:000:511:42

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

See it in the index →  ·  All films