When or is E* going to full rezz HD?
- Thread starter Madtown HD Junkie
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I would guess DISH will go 1920x1080i when they get 3rd generation MPEG-4 encoders like the Harmonic Electra 7000. Harmonic Inc. | Product Catalog
DirecTV QPSK at 4 channels per TP 7.679 Mbps each
DISH___8PSK at 6 channels per TP 6.604 Mbps each
7.0 Mbps bite rate for MPEG-4 AVC HD is optimal and anything higher would be overkill with little picture improvement. Even though DirecTV MPEG4 at 4 channels per transponder has a 16% higher bite rate then DISH but would only have a 2.3% (0.5db) better PSNR. I bet that a honest evaluation between, DirecTV StarzHD and DISH StarzHD, would be very close and indistinguishable when DISH goes 1920x1080 when they get 3rd generation MPEG-4 encoders. I would not be surprised that sometime down the road DirecTV goes to 20% bite rate reduction to squeeze 5 channels per transponder just like their MPEG-4 locals are now. A 20% bite rate reduction from 7.679 Mbps to 6.143 Mbps would only have a 4% (1.4db) PSNR loss.
DirecTV QPSK at 4 channels per TP 7.679 Mbps each
DISH___8PSK at 6 channels per TP 6.604 Mbps each
7.0 Mbps bite rate for MPEG-4 AVC HD is optimal and anything higher would be overkill with little picture improvement. Even though DirecTV MPEG4 at 4 channels per transponder has a 16% higher bite rate then DISH but would only have a 2.3% (0.5db) better PSNR. I bet that a honest evaluation between, DirecTV StarzHD and DISH StarzHD, would be very close and indistinguishable when DISH goes 1920x1080 when they get 3rd generation MPEG-4 encoders. I would not be surprised that sometime down the road DirecTV goes to 20% bite rate reduction to squeeze 5 channels per transponder just like their MPEG-4 locals are now. A 20% bite rate reduction from 7.679 Mbps to 6.143 Mbps would only have a 4% (1.4db) PSNR loss.
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