[linux-audio-user] L1 and Q10 functional look-alikes?

[Brad Fuller]

Steve Harris wrote:

>On Tue, Mar 29, 2005 at 07:28:34PM -0800, Brad Fuller wrote:
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>>Steve Harris wrote:
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>>>You can use the "fast lookahead limiter" and "triple band parametric"
>>>(actually 3 band para + low and high shelves) EQ from my plugin
>>>collection, using a batch processing capable tool like ecasound or
>>>applyplugin.
>>>
>>>
>>>      
>>>
>>Thanks Steve, I'm trying your "triple band parametric" and I can't get 
>>the High-shelving freq to cut off fast enough. Perhaps I have the args 
>>wrong:  I have the last args as: -70 5536 1, but it seems a gentle 
>>decline. Am I doing something wrong? I'd like to have a brick at 5k. Can 
>>that be done?
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>You can push up the 1 to a higher number, but it will effect the response
>near the cuttoff, that may not matter to much for your situation.
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I fooled around with the numbers, but I can't quite get what I want. 
Maybe you can help me. what I want to do is have a brick-wall at 5500Hz 
(with some adjustments below it, though I think I've got that with the 
settings of the parametric bands.) Do you think your hi-shelf with a 
gain of -70 and a slope of (input number here) is just too shallow of a 
slope to this filter for a wall?

brad
(maybe I'm not using the LADSPA args correctly.)

> 
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>>Oh, BTW: why are the Q's limited to 4?
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>Dunno, it seemed like a good idea at the time I guess. The bounds are a
>bit conservative, but thier just hints. The LADSPA spec says that
>the plugin must accept any number, so try more radical numbers.
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