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mkpetrov
 Post subject: Bandpass bug
PostPosted: Fri Sep 06, 2024 6:50 pm 

Joined: Fri Sep 01, 2023 3:39 pm
Posts: 89
Hi!
I was performing some tests on my speakers and noticed a problem while testing at 35hz using this tool:
https://onlinetonegenerator.com/
I noticed bandpass is cutting off low frequencies even if I only use the lowpass filter.
I can hear the 35hz test tone with lowpass turned off, but as soon as i turn it on, no matter what settings I use, any sound around that frequency practically disappears.
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Bojcha
 Post subject: Re: Bandpass bug
PostPosted: Fri Sep 06, 2024 8:47 pm 
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Joined: Tue Mar 17, 2009 2:56 pm
Posts: 4225
you sure HPF was at 0 when you testing ?

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mkpetrov
 Post subject: Re: Bandpass bug
PostPosted: Fri Sep 06, 2024 8:59 pm 

Joined: Fri Sep 01, 2023 3:39 pm
Posts: 89
Quote:
you sure HPF was at 0 when you testing ?
Yes, it was first set at 30hz, then I set it to off and there was zero difference, the bass only comes back after turning off bandpass itself.
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Bojcha
 Post subject: Re: Bandpass bug
PostPosted: Fri Sep 06, 2024 9:04 pm 
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Joined: Tue Mar 17, 2009 2:56 pm
Posts: 4225
Image

Here is 35Hz tone with 35Hz HPF and LPF is ON.. all looks fine.

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