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In Reply to: RE: What about Mch HDMI audio? posted by kSpace on June 07, 2011 at 09:12:31
Have you compared 2ch HDMI with 2ch analog playback? The jitter with HDMI audio is much higher than with analog playback. My Sony scd-xa9000es sacd player has only a jitter of 176ps peak to peak according to Stereophile.
Edits: 06/07/11 06/07/11Follow Ups:
I asked Oppo customer support about HDMI jitter. Here is their reply:
We do not have any written documentation on the jitter rate over HDMI as issues with jitter errors are related to the downstream equipment and not the player itself. As long as the receiver relies on our clock or on the information embedded in the video clock then there will be no decoding errors downstream.
Best Regards,
Customer Service
OPPO Digital, Inc.
2629B Terminal Blvd.
Mountain View, CA 94043
Service@oppodigital.com
Tel: 650-961-1118
Fax: 650-961-1119
I don't know what Anthem does with regards to HDMI DSP. I'll see what I can find out.
The problem with HDMI audio is that the DAC receiver has to synchronize the data bitstream with its internal master clock. Maybe there is also a difference in the jitter for 2ch and 5.1ch playback.
Edits: 06/07/11
This is what I found for a SONY TA-DA5600ES DSD to PCM (2ch/176.4kHz 5.1ch/88.2kHz) audio conversion. Audio playback of DSD and PCM are crippled by the AV receiver.
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