Archive for januari 2015

Butterworth 3rd order Low-pass @1kHz Linkwitz-Riley 4rt order High-pass @1kHz combination.   Leave a comment

Butterworth 3rd order Low-pass @1kHz Linkwitz-Riley 4rt order High-pass @1kHz filters measured at the processor outputs  (with a time offset on the high output)  summed via a small mixer.

No speakers used in this screen recording (i will do 1 or 2 measurements with loudspeakers as soon as i have time for it;-).

Enjoy…..
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Posted 30/01/2015 by timobeckmangeluid in Geen categorie

Linkwitz-Riley 8th order Low-Pass filter Linkwitz-Riley 4rt order High-Pass filter @1kHz   Leave a comment

Linkwitz-Riley 8th order Low-Pass filter Linkwitz-Riley 4rt order High-Pass filter @1kHz measured at the processor outputs. First aligned using delay and after that a 2nd order allpass filter at 1kHz 1.5oct. bandwidth.

Enjoy
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Posted 29/01/2015 by timobeckmangeluid in Geen categorie

Linkwitz-Riley 2nd order low-pass summed with a Linkwitz-Riley 4rt order High-pass filter @1kHz   7 comments

LR2lp@1kHz + LR4hp
first aligned using delay and after that aligned with a 1st order Allpass filter @1kHz at the outputs of a Apex Intelli-x 4in/8out processor (so no speakers in this 1 😉
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Linkwitz-Riley 2nd order High and Low-pass filter combination (processor outputs summed no speaker used)   Leave a comment

LR2hp@1kHz + LR2lp@1kHz
The high’s or the low’s need ø reverse for alignment. Lees de rest van dit artikel »

Posted 28/01/2015 by timobeckmangeluid in Geen categorie

A little thing called delay   Leave a comment

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Posted 19/01/2015 by timobeckmangeluid in Geen categorie

FFT size vs Frequency Resolution.   Leave a comment

If the video looks a bit fuzzie or unclear press the HD button 😉

 

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Posted 19/01/2015 by timobeckmangeluid in Geen categorie

Some data from yesterday’s proceedings   Leave a comment

Some screen shots from the data of a Seminar on measuring with FFT analyzers.

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Posted 14/01/2015 by timobeckmangeluid in Geen categorie