Speaker Design Software

[cuallito]

Okay I know this question gets asked a lot but I'm looking for one with a specific feature:

I'm looking for one that will let you give an input to (say, a square wave) to a virtual speaker and then give you an estimate of what a microphone outside the speaker would measure.

Are there any that can do this?

 

[NEO Dan]

Sounds like a SPICE model to me.

 

[cuallito]

Go on?

I've used PSPICE but I thought that was just for electronics?

 

[NEO Dan]

Come to think of it MATLAB would likely be even better - if you are up to it. My brain aches at the inital thought though

 

[cuallito]

I guess there's nothing that does anything like this?

 

[aczern]

LspCAD

 

[NEO Dan]

LspCAD

LspCAD does time domain response?

 

[aczern]

Yes

 

[NEO Dan]

OP wants to simulate time response, not measure... "virtual"

 

[John Sheerin]

Any simulation program that will give you an impulse response would work. Then convolve the impulse response with your desired waveform. Or you could take a simulated frequency response and do an inverse FFT to get the impulse response, then convolve it. I'd use Matlab to do that processing, but you could do it in Excel if you really wanted to.

 

[cuallito]

Any simulation program that will give you an impulse response would work. Then convolve the impulse response with your desired waveform. Or you could take a simulated frequency response and do an inverse FFT to get the impulse response, then convolve it. I'd use Matlab to do that processing, but you could do it in Excel if you really wanted to.

Okay, I know how to do that in MATLAB.

So what program would be best to use for doing this?

 

[John Sheerin]

What do you want to do? Measure drivers' responses and then simulate a crossover? Many programs do this. Simulate a driver from scratch by specifying all the components? I'd use something like Finecone or ANSYS. Then take that response into a typical crossover design program to design a crossover and get a system response. Maybe you could get better help if you told us why you wanted to do this. If you just want to figure out how various systems modify various time waveforms, you might be better off just creating various fictitious frequency responses in Matlab and then going from there.

 

[NEO Dan]

I'm sure there are others but I think sound easy has the ability to do the inverse FFT on the simulated FR. And now there is the Ultimate EQ, should be right up your alley...
Bodzio Software

 

[cuallito]

Sorry I just meant software that will give me a good estimate of the FR and lets you export it in a format that's easy to get into MATLAB.

 

[John Sheerin]

Right, but frequency response of what? Simulated system from scratch or simulated response of a crossover from actual driver measurements, or...?

 

[john k...]

Sorry I just meant software that will give me a good estimate of the FR and lets you export it in a format that's easy to get into MATLAB.

SoundEasy will allow you to exort the frequency response of any simulated or measured system in the form of a txt file.

 

[NEO Dan]

SoundEasy will allow you to exort the frequency response of any simulated or measured system in the form of a txt file.

Freudian slip export/extort

 

[NEO Dan]

I think that without measurements the level of performance you seem to be looking for is unrealistic. There are soo many different aspects of speaker design to account for that what I think you want (data sheet to perfect speaker) is a bit further into the future.

Things change quick so check back next week

 

[cuallito]

Right, but frequency response of what? Simulated system from scratch or simulated response of a crossover from actual driver measurements, or...?

Simulated.

Is there a demo of soundeasy available? I couldn't find anything with Google.