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I have tried many preringing experiments using linear phase DSP on speakers with music playing, and like @Cosmik have not (knowingly) heard it.
Wrt to transient response of a speaker system, I have a mix of bass reflex cabs and sealed subs. Step response of my system at the listening position:
I use linear phase digital XO's but the target response is mixed phase, mostly minimum phase with a dash of linear phase at the low end which produces the slight drop at the beginning of the step. Most advanced audio DSP software products comes with preringing compensation control and I have AB'd with and without while listening to music and can't really hear a difference. Makes a substantial difference in the measurement, but not audible to my ears.
Here is an example where the preringing comes into view when measuring off axis. My speakers are set up in about a 9ft equilateral triangle. I moved the measurement mic 3 feet to the left of center from the LP, and captured both the left and right speakers and again moving the mic 3 feet to the right of center and measured both left and right speakers:
One can see preringing and the traces with the most preringing are across the longest distance opposite. E.g. measuring the left speaker where the mic is placed 3 feet to the right of center at the LP. I can reduce the amount of preringing by reducing the amount of bass correction in the DSP and widen the sweet spot, but given I can't knowingly hear it, I am happy with the result of the time alignment, transient response and low frequency control over time.
The only experiment I have come across about the audibility of group delay in vented speaker boxes is: http://speakerdesignworks.com/group_delay.html
Wrt to transient response of a speaker system, I have a mix of bass reflex cabs and sealed subs. Step response of my system at the listening position:
I use linear phase digital XO's but the target response is mixed phase, mostly minimum phase with a dash of linear phase at the low end which produces the slight drop at the beginning of the step. Most advanced audio DSP software products comes with preringing compensation control and I have AB'd with and without while listening to music and can't really hear a difference. Makes a substantial difference in the measurement, but not audible to my ears.
Here is an example where the preringing comes into view when measuring off axis. My speakers are set up in about a 9ft equilateral triangle. I moved the measurement mic 3 feet to the left of center from the LP, and captured both the left and right speakers and again moving the mic 3 feet to the right of center and measured both left and right speakers:
One can see preringing and the traces with the most preringing are across the longest distance opposite. E.g. measuring the left speaker where the mic is placed 3 feet to the right of center at the LP. I can reduce the amount of preringing by reducing the amount of bass correction in the DSP and widen the sweet spot, but given I can't knowingly hear it, I am happy with the result of the time alignment, transient response and low frequency control over time.
The only experiment I have come across about the audibility of group delay in vented speaker boxes is: http://speakerdesignworks.com/group_delay.html