Any chance that some of that 1.5 seconds is actually a delay in the cable box actually outputting an audio signal, or is the 1.5 seconds separate from that delay?
Do you know of a way I could test for that with just the 970 in my rig?
At the moment the only device I have that can decode the 5.1 DD stream from RCN cable is my 970.
BTW, my HD 'cable box' is actually my HD Tivo.
I have two cable cards from RCN installed in the Series 3 Tivo which is the only ingress for HD programming with DD5.1 audio into my system.
My other two cable boxes are SDTV Motorola units with analog stereo out only.
If there's a method you have in mind that could isolate and test for signal output from the HD Tivo box I would love to give it a go... Unfortunately I don't have access to a 990 (or another processor with known signal acquisition properties) to compare to the 970.
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Outlaw 976, Outlaw 7700, Pro-Ject Phono Box S
Sonus Faber Domus Grand Piano (F&C), Niles HDFX (Surr. & Rear Surr.), Outlaw LFM-1 Plus, Velodyne SMS-1
Sonos multi room audio
Video: Sony KDL-46V2500, OPPO BDP-103, TiVo Premiere XL4
2-channel: Outlaw RR2150, SF Concerto Home, Outlaw LFM-2