Re: Band Pass Filtering: (was) New file...

--- In crazy_music@y..., jacky_ligon@y... wrote:

/crazy_music/topicId_unknown.html#990

> Re: Band Pass Filtering: (was) New file...
>
>
> --- In crazy_music@y..., jpehrson@r... wrote:
> > > File : /Jacky Ligon/Frog_Choir.mp3
> >
> > Call of the Wild! Heart of Darkness! What Processing!
> >
> > _________ _________ ________
> > Joseph Pehrson
>
> Thanks Joseph!
>
> You mean Joseph Conrad's "Heart of Darkness"? Good book. BTW -
heard
> they've just re-released an updated version of Apocalypse Now,
which
> was based on HoD. Supposed to have new scenes and new color
> processing.
>
> The processing on this one was interesting and a bit challenging. I
> had to essentially use digital EQ as a "Band Pass Filter".
>
> For those who may not be familiar with this term, it is one of four
> general kinds of filters that you will find on many modern (and
> usually old analogs) synths:
>
> 1. Low Pass: Lets only frequencies below the cutoff pass through.
>
> 2. High Pass: Lets only frequencies above the cutoff pass
through.
>
> 3. Band Pass: Lets you specify a range in the middle to pass
> through.
>
> 4. Notch: Lets you cut frequencies from the middle, and pass the
> outsides.
>
> On Jeff's recording, I used the EQ to remove everything below about
> 1,000 hz - that was the easy part. But I also wanted to attenuate
the
> frequencies which were in the range of the crickets (above the
> frogs), thus putting the focus on the range of frequencies that the
> sound of the frogs occupied. For this end of the frequency range I
> created a slope from about 2500 hz down to around 12,000 hz. This
> nicely softened the highs of the crickets. Next I went through a
> similar procedure as I explained to Robert for the rest of the
piece.
>
> JL

Thanks, Jacky... as a "beginning" digital EQ user, I appreciate these
tips!

__________ ____________ ________
Joseph Pehrson