Stereophonic Sound from a Single Loudspeaker

[Elias]

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:


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]

Hi

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

rgds, sreten.

[graaf]

Originally Posted by sreten

It will never work as well as two separate speakers.

rgds, sreten.

why never?

[Elias]

Amazing !

Originally Posted by sreten

It will never work

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]

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

[graaf]

Originally Posted by Frank Berry

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]

Originally Posted by Elias

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:


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]

Originally Posted by Elias

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]

Originally Posted by Frank Berry

This is not a single loudspeaker.

It's a multi element single loudspeaker !


- Elias

[Illusus]

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.