# The game's own audio output over the boot intro (Q9/#4 groundwork).
#
# 2026-08-30. Recipe: docs/re/audio-capture-alsa-file-tee.md, exactly.
#   ARGV: run-canary --apu=alsa --mute=false --gpu=null --xma_param_probe=true
#   ALSA file tee in front of a paced pulse slave; 6ch float32 @ 48 kHz.
#   Raw is 170 MB and is NOT committed -- sent via share.
#
# PROVENANCE (better than a screenshot for an audio question): the XMA probe
# logged ADV's three contexts byte-exact against the disc --
#   ctx0 packets=632 byte_size=1294336
#   ctx1 packets=546 byte_size=1118208
#   ctx2 packets=572 byte_size=1171456
# then two more (1150976 / 1269760) = the documented BGM_102 pair.
#
# CAPTURE QUALITY: 0.15-0.16 % silence on five channels, against the
# 0.31 % the recipe page records for its clean --gpu=null run.
#
# ALSA CHANNEL ORDER: captured i holds source [0,1,4,5,2,3], i.e. the
# labels below are FL FR BL BR FC LFE. Deterministic, not data loss.
#
frames 7105024 = 148.02 s, 6ch float32 @ 48 kHz

ch name   peak dBFS   rms dBFS   %silent
0  FL       -3.65    -22.26     0.16
1  FR       -2.22    -20.89     0.15
2  BL       -4.41    -24.77     0.15
3  BR      -11.65    -36.06    82.18
4  FC       -4.57    -24.81     0.16
5  LFE      -4.66    -24.38     0.16

pairwise |r| > 0.5:
   ch0(FL) vs ch1(FR): r=+0.6996
   ch0(FL) vs ch4(FC): r=+0.5202
   ch1(FR) vs ch5(LFE): r=+0.5639
