THX Jungle Sounds — DD EX 5.1 surround ambient demo for rear channel testing
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-Les Rivieres Pourpres-
Codec: Vob
Audio format: Dolby Digital 5.1
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Jungle Sounds — Horton, Jobe, Le Raid and Les Rivieres Pourpres
Jungle Sounds dominates this page with 61,200 downloads — more than double the second file. The reason is straightforward: at 2 minutes 56 seconds it’s by far the longest trailer in the entire SD THX library, and its DD EX 5.1 encoding delivers a sustained ambient soundscape that exercises the surround channels in a way the shorter trailers simply cannot. For rear channel separation and EX matrix verification, nothing else on this page comes close.
The file runs 37.2MB — large for a VOB at standard definition — and the extra runtime means the mix has space to place and move audio objects across the full channel layout. Phase coherence between surrounds, rear channel bleed and subwoofer integration all become audible over nearly three minutes of continuous playback in a way they wouldn’t over 30 seconds.
Le Raid follows at 26,700 downloads — 50 seconds and 35.5MB in standard DD 5.1. It’s the second largest file on the page by size and the longest after Jungle Sounds. The mix is more dynamic than Les Rivieres Pourpres, with sharper transients that make it more useful for amplifier headroom testing.
Les Rivieres Pourpres pulls 25,700 downloads at 43 seconds and 29.9MB in DD 5.1. Jobe sits at 22,500 downloads — 41 seconds and 18MB — and is the most compact of the longer files on the page. Horton trails at 21,700 downloads and stands out as the only DD 2.0 file on this page. At 26 seconds and 6.79MB it’s the smallest file here and its stereo-only encoding limits its diagnostic value for surround testing — it’s primarily useful for verifying stereo downmix behavior on receivers set to a 5.1 or 7.1 layout.