Dolby Digital Surround Sound dropping out with channel chang

Currently I have my cable box hooked up to my extrenal I/O box for my Audigy Platinum Pro ZS2 via my cable boxes SPDIF optical out to the I/O boxes optical in. With my initial set up I went to the AudioHQ and changed my Device Controls/Digital Input controls to SPDIF (Dolby Digital/DTS SPDIF-In Decode) and I had beautiful surround sound, but the only problem is that when I change the channel I lose all sound and I have to go back to the AudioHQ controls and change the Digital Input setting back to the (Default) setting and then change it back to the SPDIFDolby digital....etc, and then the sound comes back. So why is it that whenever I change the channel I lose my optical connection?and sound?and have to reset my Digital Input settings in order to get the sound back?Somebody please help...thanks. Jacob

Sry, your comment is 5 month old, but i have to ask you some thing too:
What headset do you use for the surround sound? I read EVERYWERE that headsets can just output games / music in stereo... for example the logitech g35...
Hope you can help me

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That sounds more logical, however, Apple and Netflix are pointing at each other.
The player needs to be compatible with Dolby Digital Plus, so that would ultimately put the responsibility on Apple. However, DDP for streaming 5.1 surround sound from the Internet is relatively new, so it doesn't surprise me that the ATV doesn't currently support it, but I would expect Apple to release a software update for it at some point.

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Notes:
- Both Vista and Windows 7 are on the same PC, but on different partitions of the same hard drive.
- standard stereo output works fine in Windows 7
- Dolby Digital and DTS do work in Windows 7, but only in the Sound config window, not in any program.
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MY PC SPECS:
CPU : Intel® Pentium® D 820 Processor (Dual-Core)64-bit processor with Intel® EM64T Technology. Each core operates at 2.80GHz | 2 x 1MB L2 cache | 800MHz FSB
Chipset : Intel® 945G DH (Viiv™)
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Hi,
Thank you for posting.
Please try the following to check the S/PDIF device:
1.    Go to “Control Panel\Hardware and Sound” and click “Sound”.
2.    In the opened dialogue box, switch to the “Playback” tab, right-click on the box listing the current devices, select Show Disabled Devices and see if the item “Digital Audio (S/PDIF)” will appear. If it appears, please enable it and set it as Default Device and see if it works.
Considering the issue is related to the specific hardware, it is also recommended that you contact Creative and see if they have any constructive suggestions.
Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
Hope this helps. Thanks.
Nicholas Li - MSFT

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ok.... strap your-self in Freddie
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Disclaimer: I've spent 3-4 hours searching for the answer, so - I'm posting another "Sound Drop Out" thread.. sorry!
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Toshiba 32WLT68 Sound Drop-Out

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I think this has to do with the airport scanning for different networks. I have 2 airport express stations hooked up in different rooms, and the speakers drop out all the time. It *****.
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When your speakers drop out, do the numbers next to the airport icon (on the serving computer) freeze or disappear?

HT4623 I am trying to update my i-phone 4 with IOS 7.1.1 it has twice got 400mB in to the 1.3GB update and then dropped out with an "error has occured" message.....any ideas?

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Dear Jody..jone5
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ah, update for itunes. thanks for the help everyone.

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I know that is not very helpful. The only other thing might be to swap to a YouView box.
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Audio to dolby digital surround AC3

Regards,
I have one test sequence in FCP,,, left channel is sound, and right is speech,, then exported separately to two mono channels,,, named SOUND and SPEECH,, I can hear each channel nice after that,,
But, when I make AC3 file with compressor, I have problem.
Can somebody tell me where I make mistake??
With compressor I make New Job With Surround sound group,, then select for every channel one mono channel, from FCP, specifically; L - speech, C-sound, R -speech, Ls -sound, Rs-sound ,,,
after select File format,, Dolby digital Professional,, Target sistem is DVD video,,,, Audio coding mode is 3/2,,, In Preprocessing, compression presset is NONE,, after submit this I have AC3 file, and when I make DVD and looking in my home dolby digital system I hear completely diferent disposition,, L - Sound, C-sound, R-speech (very quiet) Ls- sound, Rs-speech,
I was trying and different setup, but I cannot acquire adequate setup,, before I was using AC3 encoder (FCP 4.5), and everything was perfect,
Thanks,

Sry, your comment is 5 month old, but i have to ask you some thing too:
What headset do you use for the surround sound? I read EVERYWERE that headsets can just output games / music in stereo... for example the logitech g35...
Hope you can help me

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There is no way to create a real Dolby sound unfortunately. The mac currently only supports 2 channel outputs. There are interfaces you can buy that will separate the bass and send it to the subwoofer, and fake a 5 channel sound field, but ultimately it will only run 2 sets of stereo speakers, and one mono in the middle, so it is not true surround sound.
Here's a similar thread with more information if you are interested:
How can I connect 5.1 speakers to Macbook Pro 13 bought Summer 2011
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I've got a question about the Mac Mini and surround sound that's pumped through a TOSLINK connection. I've been contemplating a home theatre with a Mac Mini as the brain of the home theatre. Likely using Plex as the platform.
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I've read that the Mac Mini can only pump out 5.1 - that's not a big concern to me as I'm probably only going to have a 5.1 set of speakers anyways.

B Summers wrote:
I knew the Mac was lacking Blu-Ray, but I wasn't aware TOSLINK wasn't -inherently- able to do Dolby Digital Plus, TrueHD or DTS HD. I guess when the Mac finally gets Blu-Ray, Apple will use DisplayPort as the way to get both HD video and audio out.
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Has anyone here built their own HTPC? I've been looking into it, but all I've found have been both more expensive and MUCH bigger and uglier than the Mac Mini.
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I have been steering clear of Blu-Ray for now it's "a bag of hurt".
Regarding the Apple TV, it is definitely not powerful enough to play full 1080p (as per Blu-Ray content), even when you use something like Plex which is far more efficient than the current QuickTime software. There are continuing rumours of new Apple TV hardware, maybe then...
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Dolby Digital Surround Sound dropping out with channel chang

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