Hi there
I am setting up a 3 way stereo, I am 3-amping and is using a DSP to as an aktive x-over.
18" up to 100hz
12" from 100 up to 1400 hz
1" CD from 1400hz and up
The DSP offers me the opportunity to make a time delay for each of the three drivers, so I have so I have sat and listened to 1400hz test tones and steb by step bin aging delay to the 12" driver hoping to hear the test tone getting higher and higher as the sound from the 12" driver is getting more and more in phase with the sound from the 1" horn loaded compression driver.... If then suddenly the level of the test tone is getting lower and lower as I ad delay to the 12" I will start taking back som of the delay added to the 12" driver.
Test tone will be at it highest when time alignment between the drivers is right.
This approach have bin working to some degree, but I juts wonder:
There must be some measuring program that can give me a more precise value for time delay.
I have an UMIK-1 usb microphone.... any suggestions ??🙂
I am setting up a 3 way stereo, I am 3-amping and is using a DSP to as an aktive x-over.
18" up to 100hz
12" from 100 up to 1400 hz
1" CD from 1400hz and up
The DSP offers me the opportunity to make a time delay for each of the three drivers, so I have so I have sat and listened to 1400hz test tones and steb by step bin aging delay to the 12" driver hoping to hear the test tone getting higher and higher as the sound from the 12" driver is getting more and more in phase with the sound from the 1" horn loaded compression driver.... If then suddenly the level of the test tone is getting lower and lower as I ad delay to the 12" I will start taking back som of the delay added to the 12" driver.
Test tone will be at it highest when time alignment between the drivers is right.
This approach have bin working to some degree, but I juts wonder:
There must be some measuring program that can give me a more precise value for time delay.
I have an UMIK-1 usb microphone.... any suggestions ??🙂
You are abeselutly right, and that is just one reason for wanting to measure the time delay, instead of trying to find it by ear.
when listening to one testtone @1400hz sound will be in phase when time aligned right, but also when one driver is precisely one one 1400hz wave length apart, same goes for 2,3,4 wave lengths....
så please how to measure it.... is there a free computer program out there that can do it in cooperation with my microphone?
when listening to one testtone @1400hz sound will be in phase when time aligned right, but also when one driver is precisely one one 1400hz wave length apart, same goes for 2,3,4 wave lengths....
så please how to measure it.... is there a free computer program out there that can do it in cooperation with my microphone?
The problem with measuring the distance is that when DSP and different filters are involved, the delay ... varies. A recorded pulse (half sine) and an oscilloscope is a good bet.
But it is possible with REW - search this forum!
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But it is possible with REW - search this forum!
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Is your measurement setup able to make a time locked measurement?
Have you designed a crossover in the past where you time compensated the traditional way?
Have you designed a crossover in the past where you time compensated the traditional way?
I dont know, but I do not think so.
Signal is runing through a Mini DSP DDRC 22D that is using Dirac Live software to make the sound match my house curve.
Then corrected signal is going to a Peecker sound ps266 DSP to set up x-over filters and delay and from there out to my 3 amplifiers
Signal is runing through a Mini DSP DDRC 22D that is using Dirac Live software to make the sound match my house curve.
Then corrected signal is going to a Peecker sound ps266 DSP to set up x-over filters and delay and from there out to my 3 amplifiers
I have now downloaded REW, but don't know how to use it..... is there a guide to measure time delay with REW somewhere?