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SPDIF - what speakers can be used ?

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Old 03-08-2011, 03:22 AM   #1  
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Default SPDIF - what speakers can be used ?

Hi,

Wondering about the SPDIF (Sony/Philips Digital Interconnect Format) connection on the sound card.

Which speakers can be used on this connection ? Will the quality be much better ?
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Old 03-08-2011, 07:02 AM   #2  
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5.1 channels. Very good quality. You'd need a receiver to power speakers and turn the signal into sound.
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Old 03-08-2011, 07:37 AM   #3  
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5.1 channels. Very good quality. You'd need a receiver to power speakers and turn the signal into sound.
ckone180,

Thnx for your reply. Question - what speakers can be used on the SPDIF connector ? I have two sets of Altec lansing 2.1's can these be connected or do i need the SONY or the PHILIPS Speakers ?, have two sound cards 1) SB 5.1 2) ALC655.

So i do not need an a/v receiver as i am going to use the Surround on my comp as my sound cards can decode it.
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Old 03-08-2011, 07:50 AM   #4  
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You don't not need sony or philips, but if you have 2.1 systems, just use the stereo jack. Otherwise you will need a setup that can take the decoded signal and amplify it to power speakers. Does your sound card have speaker output terminals or just a SPDIF connector?
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Old 03-08-2011, 08:00 AM   #5  
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SPDIF is not to drive speakers, it is an inter-connect between 2 devices that allow audio signals to be exchanged. Speakers need some sort of amplification to produce the sound.
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Old 03-08-2011, 08:06 AM   #6  
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You don't not need sony or philips, but if you have 2.1 systems, just use the stereo jack. Otherwise you will need a setup that can take the decoded signal and amplify it to power speakers. Does your sound card have speaker output terminals or just a SPDIF connector?
Ckone180,

yep both the sound cards have speaker output terminals and the onboard ALC655 says SPDIF on the Realtek manager, my other SB live has gone kaput had a SPDIF connection. So i guess i can use the ALC655 for SPDIF once i get the ALtec lansing 5051.
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Old 03-08-2011, 08:07 AM   #7  
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SPDIF is not to drive speakers, it is an inter-connect between 2 devices that allow audio signals to be exchanged. Speakers need some sort of amplification to produce the sound.
DoctorCAD,


"SPDIF is not to drive speakers, it is an inter-connect between 2 devices that allow audio signals to be exchanged." this is geek to me. can you explain.
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Old 03-08-2011, 09:05 AM   #8  
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Quote:
Originally Posted by zulfikar View Post
"SPDIF is not to drive speakers, it is an inter-connect between 2 devices that allow audio signals to be exchanged." this is geek to me. can you explain.
SPIDIF is a digital output used to connect to an amplifier/decoder only. It will not operate speakers directly without the use of an amplifier/decoder. The signal out of the SPIDIF is a digital signal not an analog signal. Speakers are analog devices and that's why you need a decoder to convert the digital signal to an analog signal for the speakers. Then the amplifier is needed to supply enough power to operate the speakers.

You can think it sort of like a radio. You can't wire an antenna directly to a speaker and get sound. You need a radio in between the antenna and the speaker.
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Old 03-08-2011, 09:09 AM   #9  
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S/PDIF is a data link layer protocol and a set of physical layer specifications for carrying digital audio signals between devices and components over either optical or electrical cable. The name stands for Sony/Philips Digital Interconnect Format (more commonly known as Sony Philips Digital Interface), Sony and Philips being the primary designers of S/PDIF. S/PDIF is standardized in IEC 60958 as IEC 60958 type II (IEC 958 before 1998[1]). S/PDIF is essentially a minor modification of the original AES3 standard for consumer use,[2] providing small differences in the protocol and requiring less-expensive hardware. The physical connectors are usually either fiber optic (TOSLINK) or coaxial cable (RCA jacks).

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Old 03-08-2011, 09:09 AM   #10  
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I explained it already. You need something that can take the decoded signal and amplify it for the speakers. Like taking the 12 volts from your car cigarette lighter outlet to a power converter for 120 volts. You have the 12 V, you need the 120 V so to speak. The card you have gives you the sound information, but something needs to make it stronger so the speakers will make the sound. Speaker terminals on a sound card are one way, another way is to take the SPDIF and connect a cable from it to a receiver that gives you speaker terminals out.
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Old 03-08-2011, 09:11 AM   #11  
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Good analogy RBINCK!!!
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Old 03-08-2011, 09:14 AM   #12  
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Originally Posted by rbinck View Post
SPIDIF is a digital output used to connect to an amplifier/decoder only. It will not operate speakers directly without the use of an amplifier/decoder. The signal out of the SPIDIF is a digital signal not an analog signal. Speakers are analog devices and that's why you need a decoder to convert the digital signal to an analog signal for the speakers. Then the amplifier is needed to supply enough power to operate the speakers.

You can think it sort of like a radio. You can't wire an antenna directly to a speaker and get sound. You need a radio in between the antenna and the speaker.
rbink,

thanks a lot. i understood.
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Old 03-08-2011, 09:15 AM   #13  
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S/PDIF is a data link layer protocol and a set of physical layer specifications for carrying digital audio signals between devices and components over either optical or electrical cable. The name stands for Sony/Philips Digital Interconnect Format (more commonly known as Sony Philips Digital Interface), Sony and Philips being the primary designers of S/PDIF. S/PDIF is standardized in IEC 60958 as IEC 60958 type II (IEC 958 before 1998[1]). S/PDIF is essentially a minor modification of the original AES3 standard for consumer use,[2] providing small differences in the protocol and requiring less-expensive hardware. The physical connectors are usually either fiber optic (TOSLINK) or coaxial cable (RCA jacks).


DoctorCAD,

Will an A/V receiver be able to do the job?
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Old 03-08-2011, 09:20 AM   #14  
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Originally Posted by ckone180 View Post
I explained it already. You need something that can take the decoded signal and amplify it for the speakers. Like taking the 12 volts from your car cigarette lighter outlet to a power converter for 120 volts. You have the 12 V, you need the 120 V so to speak. The card you have gives you the sound information, but something needs to make it stronger so the speakers will make the sound. Speaker terminals on a sound card are one way, another way is to take the SPDIF and connect a cable from it to a receiver that gives you speaker terminals out.
Ckone180,

Thnx guys i am understanding. Have one more question. I am actually trying to setup a HTPC (have a sony bravia LCD) though my main comp does not have a HDMI gfx card so i am going to use the normal connector and take the audio out from the tv to line-in (pc) for a surround effect. Is there any way that i can use presets on a line interface (EQ) ? sounds silly i know
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Old 03-08-2011, 09:44 AM   #15  
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DoctorCAD,

Will an A/V receiver be able to do the job?
As long as the receiver has an SPDIF In port, yes. I think they all do, anymore.
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