Surround card in iMac?

If I connect my brand new iMac to a surround receiver with optical input, will I get real surround when watching a DVD with DVD application? I know practically all new surround receivers can upmix mono or stereo, but this is not real surround.
And, does anybody know what kind of sound card there is in new intel iMac's?
PS! I am aware of minijack----->toslink cable.

Haven't actually tried it, but I think you're in luck:
[Apple Developer Connection: Audio Developer Note|http://developer.apple.com/documentation/Hardware/Conceptual/HWTechAudio/Articles/Audio_implementation.html#//apple_ref/doc/uid/TP40003978-DontLink ElementID13]
The S/PDIF optical digital output supports PCM and AC-3 audio
formats with the following stereo data stream characteristics:
PCM: 16, 20, or 24 bits per sample at sample rates of 44.1 kHz, 48 kHz, or 96 kHz
AC-3: 16 bits per sample at sample rates of 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, or 192 kHz
The S/PDIF optical output channel status conforms to IEC 60958-3 consumer mode digital audio.
[Dolby Digital Audio (a.k.a. AC-3)|http://en.wikipedia.org/wiki/Dolby_Digital]
...hope that helps,
Looby

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Surround sound for iMac

I have Creative Inspire 4.1 4400 (http://static.clickbd.com/global/classified/item_img/895644_0_original.jpg), and I would like to get surround sound from speakers when I watch movies. I have done some research for some time, and I have no idea how to connect this to iMac.
The speaker system has green and black cables (3.5mm). For now, I only have green cable connected to iMac, and I somehow get sound from all 4 speakers + subwoofer. But it is not a true surround effect since the sounds from rear speakers are the same as front speakers.
This is what the speaker system looks like: http://img140.imageshack.us/img140/995/dsc02837n.jpg
So, what do I need to get to have surround sound on iMac?

Here is the video of the set-up: http://www.youtube.com/watch?v=HKA7nbdyAaQ&feature=youtu.be
Again, this is what my speaker is: http://static.clickbd.com/global/classified/item_img/895644_0_original.jpg
Here is the picture of the back of the subwoofer:http://img140.imageshack.us/img140/995/dsc02837n.jpg
The green cable is for front speakers while black cable is for rear speakers. It doesn't have a separate cable for subwoofer.
After doing some research, I've read that this speaker system is "not compatible with optical SPDIF sound cards." Is that related to the sound card I bought?

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Hi, I am wanting to change from a desktop PC (with Soundblaster card and Altec lansing 6 speaker surround sound (audio out from PC are FrontL-R, RearL-R, Centre/Subwoofer) to an iMac. Presumably I would use the firewire output (?) into some sort of adapter to create the audio signals descrbed earlier to feed into the Altec Lansing system.
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You really need to specify exactly what imac you have. Current ones I believe have an optical (out) and in and I think that can be combined with usb to produce multi-channel sound. But it's just an academic exercise if you don't have the optical.
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Maximum boosts to RAM and graphics card for iMac G5 PowerMac 8.1?

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Just bought this still excellent machine secondhand with a 3 month rtb warranty.
It currently has these specs, and I'd like to know what level I can take them to at maximum for Graphics Card, RAM and maybe hard drive.
Machine Name: iMac G5
Machine Model: PowerMac8,1
CPU Type: PowerPC G5 (3.0)
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CPU Speed: 1.6 GHz
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Hello Niel
Thanks. I didn't realize that I can get up to a TB! Wow! What type of TB do I buy, any suggestions of specific ones? Is there G5 specific Tb disks to install? Or just any as long as they have the right measurement size? And what size do I need to remain within?
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I have never heard of any surround support on any mac whatsoever. Is there a chance the new imac will have surround sound? Id expect apple to have come out wtih something like this since a majority of their products are sound and music based.

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, and that will plug into many 5.1 speaker systems like the Logitech Z-680 (which I have).
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Try this Discussion...
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Logitech z906 5.1 surround sound and iMac 27 inch-how do i set up and get surround sound?

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fyi, just got an iMac and was struggling to get 5.1 surround sound using my Mac with my old faithful DTT3500
So I'm posting this just in case anyone needs to know how to get the DTT3500 to work with an iMac:
- Cable: Belkin Pure A/V Digital Optical cable with Mini-Toslink adapter (available from Apple) but there are other similar cables available on the market.
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*Set/toggle the "Creative Multi Speaker Surround" button to "Fourpoint/5.1"
*Set/toggle the "Dolby Digital/PCM Audio" button to "Optical"
*Set/toggle the "Multi Channel" to OFF i.e. both "Line In" and "Digital DIN" are off(dark)
*Set/toggle the "Dolby Pro logic" button to "Digital In"
NOTE: you can change the "Creative Multi Speaker Surround" option to your desired audio purpose if you don't want surround e.g. Music, Stereo, etc. but when you want surround sound again just remember to reset the "Dolby Pro Logic" button back to "Digital In" since it gets toggled OFF when you select anything other than "Fourpoint/5.1 DIN" (using the "Creative Multi Speaker Surround" button) and it DOESN'T TOGGLE BACK ON again when you re-select "Fourpoint/5.1 DIN".
That's it!
At least I can hold off buying some new speakers/surround processor for a while, since I'm now broke after buying the iMac

Well I'm not using Vista I'm using XP SP2 and I have the same problem.
On the windows sound control panel there is a button called speaker volume. when you click on it you get a bunch of sliders with channels -8. Ive discovered that if I move the master sound control in any of the Creative Sound modes software Entertainment/Audio Creation or Gaming the channel sliders in the windows control panel numbered 3-7 all go to zero which stops the surround sound working. It leaves channels and 2 and 8 alone which can be changed with the sound control in the creative software.
Even checking move all the slides together option on the windows control panel is cancelled as soon as I twitch the main sound control. It's driving me nuts. I keep thinking I must be missing something really obvious here but alas I can't think what.
Ive tried lots of different solutions to no avail. Interestingly when I tried to use the autodriver update thing on the creative web site it said that i am using Vista and you'll have to download manually. Which I did and still didnt resolve my problem.
Sorry no solutions just more problems lets hope someone can help!
Edit - Just discovered - I have XFi Pro if I use the I/O Console volume dial it works fine, but if I use the software volume control it all goes wrong. Think I posted in the wrong thread as well as this is vista but it just seemed so relevant.
Message Edited by Gramuldy on 04-29-2008 :45 PM

Surround card in iMac?

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