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Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

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Thread

parametric eq

parametric eq

2006-12-02 by faroutwarrior

Hello
im new here and i have the 2101 artist and control one pedal 
which i paid $100 bucks for them both in unopened box's 
nice stuff to play with ( he he ) 

anyway i have never used rack equipment before and i am doing well 
with this unit but i seem to be haveing trouble with understanding 
Parametric Eq and how it works in an algorithm 

some sample setting would be nice to see so i can work with it to a 
degree of understanding  Thanks  

if hooters delivered to your door 
shouldnt they be called door knockers unlimited  ( ha ha )

Re: [gsp-2101] parametric eq

2006-12-02 by Graham Pearson

Parametric EQ is described in the GSP-2101 Artist Owner's Manual, pages 20, 21 and Figure 3-4. If you don't have a copy of this manual, it's available for download in the files section of this forum.

For each of the bands in a 1-band, 3-band, or 5-band parametric equalizer, there are 3 parameters; frequency (Hz), bandwidth (Q) and gain (dB).

The bandwidth (Q) parameter adjusts the narrowness of the bandwidth at the band frequency. High Q settings yield narrow bandwidths where the EQ has a minimal effect on frequencies either side of the band frequency. Low Q settings affect a broader bandwidth of frequencies.

If you refer to Figure 3-4 on page 21, remember that the curves are for a positive gain. For a negative gain, the curves are downwards and a mirror image of those in figure 3-4.

Parametric EQs are used in various factory algorithms. See the Appendix at the end of the manual for block diagrams of each of these algorithms. Algorithms #5, #6, #14, #15, #16, and #32 have Parametric EQs in them.
Hope this helps,
Graham

Re: parametric eq

2006-12-03 by faroutwarrior

--- In gsp-2101@yahoogroups.com, "Graham Pearson" <gpearson@...> 
wrote:
>
> Parametric EQ is described in the GSP-2101 Artist Owner's Manual, 
pages 20, 21 and Figure 3-4.  If you don't have a copy of this 
manual, it's available for download in the files section of this 
forum.
> 
> For each of the bands in a 1-band, 3-band, or 5-band parametric 
equalizer, there are 3 parameters; frequency (Hz), bandwidth (Q) and 
gain (dB).
> 
>  
> 
> The bandwidth (Q) parameter adjusts the narrowness of the bandwidth 
at the band frequency.  High Q settings yield narrow bandwidths where 
the EQ has a minimal effect on frequencies either side of the band 
frequency.  Low Q settings affect a broader bandwidth of frequencies.
> 
>  
> 
> If you refer to Figure 3-4 on page 21, remember that the curves are 
for a positive gain.  For a negative gain, the curves are downwards 
and a mirror image of those in figure 3-4.
> 
> 
> Parametric EQs are used in various factory algorithms.  See the 
Appendix at the end of the manual for block diagrams of each of these 
algorithms.  Algorithms #5, #6, #14, #15, #16, and #32 have 
Parametric EQs in them.
> 
> Hope this helps,
> Graham
>

sure did Graham 
see ive worked with them before 

now i see what your talking about 
its like useing the Smiley and Frown curves 
which i use in my stompbox setup EQ / Dist ? EQ Chain 
im hopeing this unit holds up for a long time 
because i love it 

Thanks for all your doing ( Smiles )

Re: parametric eq

2006-12-03 by faroutwarrior

--- In gsp-2101@yahoogroups.com, "Graham Pearson" <gpearson@...> 
wrote:
>
> Parametric EQ is described in the GSP-2101 Artist Owner's Manual, 
pages 20, 21 and Figure 3-4.  If you don't have a copy of this 
manual, it's available for download in the files section of this 
forum.
> 
> For each of the bands in a 1-band, 3-band, or 5-band parametric 
equalizer, there are 3 parameters; frequency (Hz), bandwidth (Q) and 
gain (dB).
> 
>  
> 
> The bandwidth (Q) parameter adjusts the narrowness of the bandwidth 
at the band frequency.  High Q settings yield narrow bandwidths where 
the EQ has a minimal effect on frequencies either side of the band 
frequency.  Low Q settings affect a broader bandwidth of frequencies.
> 
>  
> 
> If you refer to Figure 3-4 on page 21, remember that the curves are 
for a positive gain.  For a negative gain, the curves are downwards 
and a mirror image of those in figure 3-4.
> 
> 
> Parametric EQs are used in various factory algorithms.  See the 
Appendix at the end of the manual for block diagrams of each of these 
algorithms.  Algorithms #5, #6, #14, #15, #16, and #32 have 
Parametric EQs in them.
> 
> Hope this helps,
> Graham
>

Thanks Graham
ive never worked with them before so i did not know how it actually 
functions but after reading your post 

i did see that it works similer to useing 2 EQ's
in the EQ / Distortion / EQ chain 
( Frown and Smiley curve's ) 

Thanks alot for your time
im actually spending 2 hours a day with the 2101 artist 
and ive found it to be a blast 

ive made some nice tone findings too 
im also doing some re-amping at http://www.amptone.com 
ive learned alot from the site 

im about to place it in the front of the chain 
and try all my setups again

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