Frequency Splitting and recombination

[zpyder]

I just had a thought and then it was followed by a question... 

If I were to take a signal path and split it using a series of highpass/lowpass filters and then apply different effects to each, would I need a "blender" to recombine them??  Assuming they are shared the same ground the whole time that is...

[donald stringer]

I have been studying along the same lines, I believe you need a summing circuit. In a book I have called  projects for guitarist by craig anderton, There is a project called "The qaudrafuzz" in which he splits the signal into a high pass, low pass, and two mid bands and runs each into another op-amp that creates the distortion. The sound of the circuit overall has not gotten much good press but the idea of splitting the signal and using the four filters sounds good [less the distortion circuits]  That is four filters and four distortions. I will probably use just the filters.Your idea is right in line with what I have been looking into.

[zpyder]

wonderful... 

I've been going over some of these ideas in my head today...  what would it be like to have what is roughly a loop sampler, but instead of being a switchbox for different loops, places certain frequencies through certain loops, and then sums them back up before output.  Perhaps I could devote my heavier strings to a distortion loop while my lighter gauges are run through chorus, or vice-versa...

I'll check out that qaudrafuzz later tonight.

cheers,
zpyder

[donald stringer]

Here is my plan. This is an ongoing project and I have had to slow down in order to absorb some much needed information. I have built the lxh marsh sym[this is the red box]. I am planning on building marty marts classic thirty circuit for the green box. This is my red/green project. I am now working on the effector box. This will have two inputs to accomadate the red and green outputs. Both inputs will have filters first [separation of freq.].....what goes after that I havent decided how complicated to make it but the last in the chain will be the blender [possibly the bblender which does have a pretty good track record.I want to take two circuits/ filter/add whatever/blend/output a third,hopefully opposite sound. This will give me a choice of four from the effector box, 1 red 2 green 3 opposit sound 4 clean bypass.  also I have been toying with the idea of adding a low voltage tube circuit on one side of the whatever section but I have to limit my choices.

[R.G.]

For a good start at the frequency splits, take a look at the "constant Q" graphic EQ filter sections.

You'll need to split, process and then re-mix.