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Optimum Transient Response 3-Way Loudspeakers?

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S

STEP RESPONSE

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Joined 2021
trifonovaudio.wordpress.com/
1657368273291.gif


Unfortunately, the anechoic camera in my city is no longer functional.
We performed quasi-anechoic SPL measurement with MLS under home conditions.
 
mbrennwa

mbrennwa

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This curve extends down to 50 Hz, and the note below the plot says "start 0.0 ms" and "stop 85.3 ms". I don't see how this could be an anechoic measurement "under home conditions". Also, the y-axis shows dBV again, so not SPL.

The y-axis is missing the tick labels, so there is no way of knowing the scale.

Please share the raw impulse response data (or step response) so that we can determine the SPL curve etc. The first 100 ms of the impulse response (or step response) are more than enough for this.
 
mbrennwa

mbrennwa

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STEP RESPONSE said:
......Is there a Law - if "measurement data look alright" and the sound is guaranteed (surely) good?......?
Click to expand...
Of course there is no such law, that would be silly. But many people will want to know about the the engineering that went into a product.

Personally I am interested to see if/how the decision to go for "transient perfect" step response affected the SPL response. It's usually not easy to get a time-coherent step response and smooth/flat SPL response.
 
S

STEP RESPONSE

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Usually it is not easy - because all filters known so far only give a flat frequency response. Exception - only for the first order.
If you use any simulation program - you will quickly and easily see that this is already possible with Trifonov Transient Perfect.
https://kimmosaunisto.net/Software/VituixCAD/VituixCAD_help_20.html#Trifonov_TP

Of course, there is a good Step Response when processing with DSP - SMAART, Convolver, RePhaser, DEQX, miniDSP ,
DBXDriveRack , BSS , Xilica , XTA etc.!!!......for those who do not want a full analog path from input to output.
 
Last edited:
S

STEP RESPONSE

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TNT said:
Why is this so?
Click to expand...
ТNТ asks:
.....Why is this so?

This is because all filters higher than first order generate resonances that disturb part of the spectrum - which "arrives" more late.
These delays smash (break) the Timing Relationships between all the tones and harmonics of the input(original) signal.
As a result, only slow and drawn-out music with alternating "clever" arrangements of consecutive (not together)
instruments and vocals sound acceptable.
 
S

STEP RESPONSE

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Joined 2021
trifonovaudio.wordpress.com/
Everyone has the right to choose. In our lobby "circle"- we should know the fundamental researches of Richard Heiser, Möller, Boegli,
etc. (Alain Roux and Roger Roschnik from PSI ). And if then we don't feel the importance of a good Time Domain through
Trifonov Audio(Formulas) solution - no one is stopping you from leaving the discussion.
Dear mbrennwa, nothing in this life comes without labor (at the ready). Reading and seeing between the words and lines provides answers.
 
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