[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Low pass filters revisited

Subject: Re: Low pass filters revisited
From: mjmahon@aol.com (Michael J. Mahon)
Date: 14 Nov 2002 08:35:28 GMT
Newsgroups: comp.sys.apple2
Organization: AOL http://www.aol.com
References: <ut1bp241n3u178@corp.supernews.com>
Xref: archiver1.google.com comp.sys.apple2:24548

Jason Whorton wrote:

>Here's a note to remember.  Odd-order filters are at -3db at the crossover
>frequency and even-order filters are at -6db at the crossover frequency.

I think you mean _first_-order filters are at -3dB at the crossover frequency.

Second-order is at -6dB, third-order at -9dB, fourth-order at -12dB, etc.

-michael

Check out 8-bit Apple sound that will amaze you on my
Home page:  http://members.aol.com/MJMahon/

References:
- Re: Low pass filters revisited
  - From: "Jason Whorton" <jason at microxl.com>

Prev by Date: Re: Trackstar can use IBM 360K floppy drives to R/W Apple disks?
Next by Date: Re: Commercial scale space tourism
Previous by thread: Re: Low pass filters revisited
Next by thread: Re: Low pass filters revisited
Index(es):
- Date
- Thread