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-   -   Stereophonic Sound from a Single Loudspeaker (http://www.diyaudio.com/forums/multi-way/200040-stereophonic-sound-single-loudspeaker.html)

Elias 7th November 2011 08:49 PM

Stereophonic Sound from a Single Loudspeaker
 
Hello !

This thread is dedicated for discussion of methods of generating stereo sound in a small room acoustic space by using a single DIY loudspeaker !

Encouraged by the results achieved in the Stereolith thread I explored the concept of single speaker stereo further:

Elias Pekonen Home Page - Stereophonic Sound from a Single Speaker


The general principle I'm using is this:
http://dl.dropbox.com/u/2400456/diya...ereo_0x-1x.png

Interesting is the selection of parameter x !
When x = 0, the speaker is bipolar sideways projection (Stereolith).
When x = 1, the speaker is MS stereo.

I think the optimal value is about x = 0.5, which I'm using at the moment.


The Cardboard is back, but now totally different since enhanced with psychoacoustic vector steering !

I've been listening to this for about a week now, and results are very positive ! There is a great potential !

Experimenting recommended ! :)

- Elias

sreten 7th November 2011 08:57 PM

Hi

Why? It will never work as well as two separate speakers.

rgds, sreten.

graaf 7th November 2011 09:18 PM

Quote:

Originally Posted by sreten (Post 2773421)
It will never work as well as two separate speakers.

rgds, sreten.

why never?

Elias 7th November 2011 09:21 PM

:D Amazing !

Quote:

Originally Posted by sreten (Post 2773421)
It will never work

:rofl:

Luckily I didn't know that because for me this works much better than conventional stereo triangle ! :)

Why ? Because this circumvents many artefacts related of conventional two speaker reproduction.


- Elias

Frank Berry 7th November 2011 09:22 PM

This is not a single loudspeaker.
This is three loudspeakers in one enclosure.
This has been done for decades.

graaf 7th November 2011 09:24 PM

Quote:

Originally Posted by Frank Berry (Post 2773457)
This is not a single loudspeaker.
This is three loudspeakers in one enclosure.
This has been done for decades.

could You post any links please? :)

weltersys 7th November 2011 09:50 PM

Quote:

Originally Posted by Elias (Post 2773410)
Hello !

This thread is dedicated for discussion of methods of generating stereo sound in a small room acoustic space by using a single DIY loudspeaker !

Encouraged by the results achieved in the Stereolith thread I explored the concept of single speaker stereo further:

Elias Pekonen Home Page - Stereophonic Sound from a Single Speaker


The general principle I'm using is this:
http://dl.dropbox.com/u/2400456/diya...ereo_0x-1x.png

Interesting is the selection of parameter x !
When x = 0, the speaker is bipolar sideways projection (Stereolith).
When x = 1, the speaker is MS stereo.

I think the optimal value is about x = 0.5, which I'm using at the moment.


The Cardboard is back, but now totally different since enhanced with psychoacoustic vector steering !

I've been listening to this for about a week now, and results are very positive ! There is a great potential !

Experimenting recommended ! :)

- Elias

Elias,
You are generating stereo sound with three discreet loudspeakers that happen to be in a single box, not "Stereophonic Sound from a Single Loudspeaker".

What is "parameter x", and how is "parameter x" varied between 0 and 1 ?
A wiring diagram would be helpful for others to do the recommended experimenting ...

markus76 7th November 2011 10:01 PM

Quote:

Originally Posted by Elias (Post 2773410)
I think the optimal value is about x = 0.5, which I'm using at the moment.

Now we're talking :) How did you implement the rematrixing?

Elias 7th November 2011 10:12 PM

Quote:

Originally Posted by Frank Berry (Post 2773457)
This is not a single loudspeaker.

:scratch1:


It's a multi element single loudspeaker ! :cool:


- Elias

Illusus 7th November 2011 10:30 PM

Even if this "never" surpasses conventional stereo set ups it is still cool. Ambiphonics is an esoteric PITA which will not replace my stereo but I still had a ton of fun playing with it. I'm definitely going to play with this.


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