i need audio circuit - Electronic Circuits Projects Diagrams Free

magician · 26th May 2003, 11:35 PM

Hi

I search for 4.1 Or 2.1 or 5.1 speaker circuit

and i cant found it

maybe i found It here

i need It so much

and thanks

hamfiles · 31st May 2003, 01:15 PM

Do you mean a schematic you can build, or a card you can buy?

**kinjalgp** · 31st May 2003, 07:55 PM

I think he is searching schematics for Creative (TM) Inspire 4.1
I doub't whether if you'll can get it anywhere on the web.

magician · 2nd June 2003, 12:17 AM

hamfile

yes i mean a schematic i can bulid

kinjalgp

i searching schematic for any 4.1 speaker

i dont mean Creative (TM) Inspire 4.1 only

but i want any schematic for any 4.1 sound system

Gene · 2nd June 2003, 01:49 AM

I think this is just 5 amplified speakers. To get the real 2.1, 4.1, 5.1 or 6.1 sound experience, you will need to add a 4-channel sound card with a Dolby decoder to drive the speakers as descrete channels. The real trick is in the card - and I don't think Dolby will share their technology.

**kinjalgp** · 2nd June 2003, 05:06 AM

Here I found a simple schematic for surround sound decoding.
http://www.sound.westhost.com/project18.htm

This is not real dolby decoder but simple filters which separate out low, high and mid frequencies from audio signal and separately feed individuals amplifiers. The dolby chip does the same thing but more precisely and with less distortion. All you need to construct is 5 separate power amplifiers and connect the output of this circuit to them. Remember that power of sub-woofer should be greater than that of the satellites.

magician · 2nd June 2003, 08:41 PM

gene

not all trick just in the card
nut i think the good sound system is depended on the card and the subwoofer quality .

kinjalgp

thank you very much Mr kinjalgp

but iam beginner in electronic circuits
and i want to understand something
are this schematic fit to be a good subwoofer
i can plug it on my computer
and hear a good sound i cant hear it from the normal speakers ?

**kinjalgp** · 3rd June 2003, 05:41 AM

Yes you can plug it into your computer sound card provided you have 4-outputs on it. If you construct it carefully , the sound quality will be good. You can compare it with dolby decoder since the job of both of them is same but you can't say that it is exactly same as a dolby decoder since there are many other things that chip performs. The above circuit performs only the basic filtering task.

But overall it will be a good hearing experience since separating audio frequencies and applying them to those speakers which are just made to reproduce them will create better effect than single speakers.

Mind that you have to construt 5 other power amps. to connect at the output of decoder circuit which will drive the speakers and sub-woofer.

magician · 4th June 2003, 12:11 AM

thank you very very much Mr kinjalgp

i well try to construct it

but what a kind of power amps i can built it
and it be suitable for this circuit ?

and iam very sory if i was tiresome

**kinjalgp** · 4th June 2003, 03:42 AM

For Satellites : http://www.sound.westhost.com/project72.htm (you'll need two of them)
For Sub-woofer : http://www.sound.westhost.com/project19.htm

There are many options that you can choose from. The power of sub-woofer should be around 3 times more than satellites. If you require lower power than this, then use the satellite amp. as sub-woofer amp. and get 6W amp. for satellites.

For more circuits : http://www.sound.westhost.com/projects.htm#index

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26th May 2003, 11:35 PM	(permalink)
magician	i need audio circuit Hi I search for 4.1 Or 2.1 or 5.1 speaker circuit and i cant found it maybe i found It here i need It so much and thanks

31st May 2003, 01:15 PM	(permalink)
hamfiles	Do you mean a schematic you can build, or a card you can buy?

31st May 2003, 07:55 PM	(permalink)
kinjalgp	I think he is searching schematics for Creative (TM) Inspire 4.1 I doub't whether if you'll can get it anywhere on the web. __________________ "There is no way to peace, peace is the way!"

2nd June 2003, 12:17 AM	(permalink)
magician	hamfile yes i mean a schematic i can bulid kinjalgp i searching schematic for any 4.1 speaker i dont mean Creative (TM) Inspire 4.1 only but i want any schematic for any 4.1 sound system

2nd June 2003, 01:49 AM	(permalink)
Gene	I think this is just 5 amplified speakers. To get the real 2.1, 4.1, 5.1 or 6.1 sound experience, you will need to add a 4-channel sound card with a Dolby decoder to drive the speakers as descrete channels. The real trick is in the card - and I don't think Dolby will share their technology.

2nd June 2003, 05:06 AM	(permalink)
kinjalgp	Here I found a simple schematic for surround sound decoding. http://www.sound.westhost.com/project18.htm This is not real dolby decoder but simple filters which separate out low, high and mid frequencies from audio signal and separately feed individuals amplifiers. The dolby chip does the same thing but more precisely and with less distortion. All you need to construct is 5 separate power amplifiers and connect the output of this circuit to them. Remember that power of sub-woofer should be greater than that of the satellites. __________________ "There is no way to peace, peace is the way!"

2nd June 2003, 08:41 PM	(permalink)
magician	gene not all trick just in the card nut i think the good sound system is depended on the card and the subwoofer quality . kinjalgp thank you very much Mr kinjalgp but iam beginner in electronic circuits and i want to understand something are this schematic fit to be a good subwoofer i can plug it on my computer and hear a good sound i cant hear it from the normal speakers ?

3rd June 2003, 05:41 AM	(permalink)
kinjalgp	Yes you can plug it into your computer sound card provided you have 4-outputs on it. If you construct it carefully , the sound quality will be good. You can compare it with dolby decoder since the job of both of them is same but you can't say that it is exactly same as a dolby decoder since there are many other things that chip performs. The above circuit performs only the basic filtering task. But overall it will be a good hearing experience since separating audio frequencies and applying them to those speakers which are just made to reproduce them will create better effect than single speakers. Mind that you have to construt 5 other power amps. to connect at the output of decoder circuit which will drive the speakers and sub-woofer. __________________ "There is no way to peace, peace is the way!"

4th June 2003, 12:11 AM	(permalink)
magician	thank you very very much Mr kinjalgp i well try to construct it but what a kind of power amps i can built it and it be suitable for this circuit ? and iam very sory if i was tiresome

4th June 2003, 03:42 AM	(permalink)
kinjalgp	For Satellites : http://www.sound.westhost.com/project72.htm (you'll need two of them) For Sub-woofer : http://www.sound.westhost.com/project19.htm There are many options that you can choose from. The power of sub-woofer should be around 3 times more than satellites. If you require lower power than this, then use the satellite amp. as sub-woofer amp. and get 6W amp. for satellites. For more circuits : http://www.sound.westhost.com/projects.htm#index __________________ "There is no way to peace, peace is the way!"