Audio

[Kayne314]

In the audio set-up of your Oppo BD player, you might have the preference set to a lower setting. My Panasonic has a setting where it downconverts HD audio to Dolby Prologic (something to do with multible audio tracks). Make sure your player isn't doing something like that. Ideally it should be outputting 7.1 channel LPCM, Dolby True HD, and DTS HD MA to the Receiver through the HDMI cable, or Bitstreaming the HD audio to the Receiver for it to decode.

Also, if your audio is being run to the receiver through anything less than an HDMI cable, you are NOT getting HD sound. Coaxial cable, RCA cables and optical cables, though good, are not capable of transferring the full uncompressed, lossless audio.

[jts_360]

That's true Kayne but not all HDMI cables can handle the bandwidth either, I think the range goes from 2.23 Gbps to 21 Gbps. If you have an HDMI cable that a v1.0 you may need to upgrade to v1.3 or at least try a different cable to see if that's the issue.

[sonimax]

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jts_360 wrote:

That's true Kayne but not all HDMI cables can handle the bandwidth either, I think the range goes from 2.23 Gbps to 21 Gbps. If you have an HDMI cable that a v1.0 you may need to upgrade to v1.3 or at least try a different cable to see if that's the issue.

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Untrue. Even 1.0 HDMI cables support TrueHD and dts MA in bitstream.

[jts_360]

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sonimax wrote:

Untrue. Even 1.0 HDMI cables support TrueHD and dts MA in bitstream.

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What... Your kidding right???

To make the bitstream(Dolby TrueHD or DTS MA) signal work, both the player and the receiver must be HDMI 1.3 compliant. As for LPCM, you need HDMI 1.1 or greater.

[sonimax]

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jts_360 wrote:

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sonimax wrote:

Untrue. Even 1.0 HDMI cables support TrueHD and dts MA in bitstream.

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What... Your kidding right???

To make the bitstream(Dolby TrueHD or DTS MA) signal work, both the player and the receiver must be HDMI 1.3 compliant. As for LPCM, you need HDMI 1.1 or greater.

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No, I'm not kidding but I'm speaking of HDMI cables and not from the interface itself. And the HDMI interface always supported LPCM from the start. The 1.1 version only added DVD-A support for what it worth.

[jts_360]

Sorry but you are mistaken sonimax, you cannot use a standard(category 1 or as I called it v1.0) HDMI cable which is only good for 1080i and 6 channel(5.1) Dolby Digital or 5.1 dts es audio. You need a high speed(category 2 or as called it v1.3) HDMI cable which is capable of 1080P and 8 channel audio(7.1) Dolby Truehd and DTS MA. As I said before you can't use a standard v1.0 HDMI cable for Dolby truehd, there's just not enough bandwidth.

[sonimax]

I presently use a HDMI v1.0 with my PS3, in 1080p with 7.1 PCM sountrack without any problem.

[sonimax]

Oh, and by the way, I paid 5$ for it.

[sonimax]

That comes directly from the HDMI website:

Q. Do I need v1.3 HDMI to hear the new Dolby TrueHD and DTS Master HD audio content on HD-DVD or Blu-ray players?

No. The Dolby TrueHD, Dolby Digital Plus, and DTS-HD Master Audio can be decoded by the playback device into multi-channel Pulse Code Modulation (PCM) digital audio streams, which is an audio format standard that can be sent over any version of HDMI. In fact, all versions of HDMI can support up to 8 channels of PCM audio at 192kHz, 24 bits per sample.

In fact, the uncompressed PCM audio streams requires more bandwidth than the compressed TrueHD and dts MA formats.

[sonimax]

And regarding the support of 1080p, this also comes from their website:

Q. Do you need a new version of HDMI to play Blu-ray and HD-DVD content in high definition?

All versions of the HDMI specification support the ability to watch HD-DVD / Blu-ray content in high definition up to 1080p resolution. However, there may be non-HDMI reasons that prevent some devices from accessing content in high definition, including lack of HDCP support.