It's possible to make a dual band compressor from 2 Orange Squeezers?

Started by gigimarga, February 07, 2010, 12:09:53 PM

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gigimarga

Hello,

I've just discovered in my "archive bag" that I have 3 Orange Squeezers, so I am curious if it's possible to make (enough easy) a dual band compressor from 2 of them.

Thx a lot all!

jkokura

What do you mean by dual band? Do you mean that it's compressing two different frequencies? or do you mean a simple double compressor (ala Analog man). It could be a cool effect to 'stack' two compressors. What's the harm in trying?

Jacob

Mark Hammer

Multi-band compressors are useful in wide-bandwidth situations.  Is a guitar considered as "wide-bandwidth"?  I don't know.

Multi-band compressors are also used to be able to provide lots of compression, but in a less apparent way.  Is there a need to make an Orange Squeezer less apparent?  I don't think so.

Multi-band compressors are used when the program material needs higher fidelity.  Is the Orange Squeezer capable of that fidelity?  I don't think so.

gigimarga

Quote from: jkokura on February 07, 2010, 04:10:25 PM
What do you mean by dual band? Do you mean that it's compressing two different frequencies? or do you mean a simple double compressor (ala Analog man). It could be a cool effect to 'stack' two compressors. What's the harm in trying?

Jacob

Thx Jacob and my I apologize that I was not very clear!
That's what I want: http://www.ashdownmusic.com/bass/detail.asp?ID=153
On the site above mentioned you cand find: "Designed to meet the specific needs of the modern bass player, Ashdown's Dual Band Compressor splits the signal into high and low frequency bands and applies compression separately to both – fast attack and decay for the high frequency and slow attack and decay for the low frequency or fundamental waveform of the note. The amount of compression applied to each is independently variable and the balance between the high and low frequency components of the signal is also controllable as they are re-combined into a single, full range output."

gigimarga

Quote from: Mark Hammer on February 07, 2010, 04:16:24 PM
Multi-band compressors are useful in wide-bandwidth situations.  Is a guitar considered as "wide-bandwidth"?  I don't know.

Multi-band compressors are also used to be able to provide lots of compression, but in a less apparent way.  Is there a need to make an Orange Squeezer less apparent?  I don't think so.

Multi-band compressors are used when the program material needs higher fidelity.  Is the Orange Squeezer capable of that fidelity?  I don't think so.

Thx a lot Mark, as usually :)
A good bass player told me that dual band compressors (as described above) are the best for bass...

pedalgrinder

i think multi band compressor play a bigger role in compressors for bass than guitar. although they have to be designed with the correct frequency range triggering that high and low pass filters also so good design is also a big player.

Processaurus

While the Orange Squeezer is a good sounding effect for guitar players, and is a DIY favorite for its simplicity, it is limited and funky in its operation to a point where it might not be a good base for a much more complicated effect.  It is noisy, there are none of the typical controls (ratio, attack, release, etc), and is usually described as subtle.

If you were interested in a two band compressor (which could be very cool, especially with bass, to control the low end and midrange seperately) something better suited for modularity would be key.  Have you seen THATcorp's app notes for their VCA ic's?  They look really compelling, as far as I know their chips haven't shown up in a DIY pedal design yet:

http://www.thatcorp.com/Design_Notes.shtml

That and a good, preferably adjustable, active crossover circuit, and then a simple mixer to combine the two bands, is all you'd need.

In a less technical solution, but simpler, one can get some of the benefits of a multiband compressor by making a knob to adjust bass in a single band compressor's envelope detection circuit, to tailor how much it compresses bass vs midrange.  Look up the Marshall Ed-1 Edward compressor if that interests you.

EDIT:  Just noticed that the original post was 2 years ago.  Whatever

DavenPaget

Quote from: Processaurus on January 03, 2012, 07:28:08 PM
While the Orange Squeezer is a good sounding effect for guitar players, and is a DIY favorite for its simplicity, it is limited and funky in its operation to a point where it might not be a good base for a much more complicated effect.  It is noisy, there are none of the typical controls (ratio, attack, release, etc), and is usually described as subtle.

If you were interested in a two band compressor (which could be very cool, especially with bass, to control the low end and midrange seperately) something better suited for modularity would be key.  Have you seen THATcorp's app notes for their VCA ic's?  They look really compelling, as far as I know their chips haven't shown up in a DIY pedal design yet:

http://www.thatcorp.com/Design_Notes.shtml

That and a good, preferably adjustable, active crossover circuit, and then a simple mixer to combine the two bands, is all you'd need.

In a less technical solution, but simpler, one can get some of the benefits of a multiband compressor by making a knob to adjust bass in a single band compressor's envelope detection circuit, to tailor how much it compresses bass vs midrange.  Look up the Marshall Ed-1 Edward compressor if that interests you.

EDIT:  Just noticed that the original post was 2 years ago.  Whatever

So basically , what i have in mind is to take a dually opamp and split frequencies , by having the feedback loop roll off either selected calculated frequency , and then into THAT VCA .
Something like bi-amping , but i have another solution is to split and roll off then have another knob to mix the 2 frequencies , then into that VCA .
If i get any crazier this will turn into a Quad-output compressor .
Hiatus

Earthscum

I was pondering this, and thought... paralleling an OS with something a bit more "rich" sounding would probably work pretty good on Bass. I'm thinking using the OS and putting a tone cut right after it. That would take care of a good portion of hiss, and you could couple something else in to tune the overall sound by filtering lows and highs, and mix. Heck, a BMP tonestack after the "second side" comp may be just right.

But, I really don't know if it would sound good or not. Just seems like something worth trying out.   ;D
Give a man Fuzz, and he'll jam for a day... teach a man how to make a Fuzz and he'll never jam again!

http://www.facebook.com/Earthscum

petemoore

2c: for what ?
  Raising the amplitude to X and nothing above X for 'bass' to make the speaker output 'optimum' ie...loud but not distorting...since LF's require so much 'push' to come out and 'overpush' is sometimes just a slight attack dynamic increase away [play the string just a little louder and the bass speaker 'flubs'.
   ...would be one 'what' or reason to have a bass-only compression device. Because higher frequencies don't load or push so much current through a speaker, allowing dynamics [via less compression] to get to the speaker might be 'ok' or fine.
   Another 'what' might be wanting to put some distortion into the bass's upper range [low frequency drivers trying to reproduce clipped signals may exhibit..flarty basstones] tends to sound like a 'buzz-tone' more than for higher frequencies like a distorted guitar], splitting the frequency band of the source into 2 frequencies, each 'treated' differently...well it offers what it offers and if bass-fuzz [distortion may be a preferable circuit-search term] without unwanted speaker sluggishness when trying to follow a squared-off LF waveform, or the sharp curves of a distorted LF signal waveform.
  Just having the frequency split in two and each side treated differently [compressing the really LF's to 'save' the speaker from 'overdynamics' offers...the ability to work with each side of the split in different ways.
  Instead of trying to build the perfect 'after we know what it does effect' before we know how the speaker/listener will react, perhaps get 'close'...see what it does and know much more 'after'...leave room to insert/modify/revoice the circuits to better suit the application after initial tryout/testing.
Convention creates following, following creates convention.

pedalgrinder

Have you tried the Trace Elliott smx dual band compressor: http://music-electronics-forum.com/attachments/9294d1274182254-smx-dual-compressor.pdf here's a link to where you can have a view on it. I believe the side chain could be re-used on fets similar to  Orange squeezer's but it would take a bit of stuffing around but have a look see what you think