Am 27.11.2020 um 20:50 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 8:24 PM Michael Koch <astroelectro...@t-online.de>
wrote:
Am 27.11.2020 um 19:25 schrieb Paul B Mahol:
On Fri, Nov 27, 2020 at 7:09 PM Michael Koch <
astroelectro...@t-online.de>
wrote:
Hello,
I have a few questions about the asubboost and asupercut filters.
-- In asubboost it's not yet clear how the block diagram of the filter
looks like. Especially the "decay" and "feedback" options are unclear.
What's the input of the the delay line? Before or after the low pass
filter? Where does the feedback go to? Before or after the lowpass
filter? I have attached a sketch of a possible block diagram, but it's
only a wild guess.
This filter just adds delayed sub frequencies set by cut off frequency
back
to output. Decay sets decay of old sub echo in buffer and feedback sets
how
much
new sub frequencies are added to the delay buffer.
Sorry, I didn't understand it. I think this filter could be explained
much better with a block diagram.
-- Is it correct that the "slope" parameter effectively changes the
cutoff frequency, but doesn't change the steepness (dB / octave) of the
filter?
It changes steepness, not cutoff.
What's the unit of the "slope" option?
1 / octave, can be set as dB unit, eg. -20dB, 0dB or 1 is max value.
Use mentioned mpv command for the reason, as it displays curve.
The command does not work on my computer. I did download mpv.exe and run
the command line. mpv exits immediately, no output, no error message.
When I run mpv without any options, then a mpv window opens.
Michael
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