Reacomp

[championrabbit]

I dont know what to tell you. Figure out whther your comp is feedback or feedforward. Look in the schematic for any sort of filtering that happens in the detector. Try and find out what sort of time the comp uses to calculate RMS (if it does). See if you can find any knee information.

We need to make some presets to start, that would go a long way

Right.

So give me an example of how you've managed to emulate a 'classic' hardware compressor using Reacomp.

Just one example.

Specifics.

Shouldn't be so difficult given what you say.

Thanks!

[Pipelineaudio]

Right.

So give me an example of how you've managed to emulate a 'classic' hardware compressor using Reacomp.

Just one example.

Specifics.

Shouldn't be so difficult given what you say.

Thanks!

Give me the Detector's filtering curve, knee size and placement, feedback or feed forward characteristics, and an idea of the rms window size of a compressor you are interested in, shouldn't be difficult if you are after a specific sound from me.

[Pipelineaudio]

ok here is my approximation of the Sun Universal Leveling Amplifier. I have moved the hipass up a bit so that lows dont get squished, which is one of the frequent complaints about the original unit. This is quite a bright compressor, but will still give plenty of squish. Try it on overheads or an entire drum buss and set the threshold to be REALLY active often seeing 8db of reduction

http://stashbox.org/12869/SULA.FXP

[Marduchk]

that sounds nothing like a SULA

[championrabbit]

Give me the Detector's filtering curve, knee size and placement, feedback or feed forward characteristics, and an idea of the rms window size of a compressor you are interested in, shouldn't be difficult if you are after a specific sound from me.

As I suspected; you have no idea what you're talking about.

[Pipelineaudio]

As I suspected; you have no idea what you're talking about.

Evidence?

[deadbeef]

As I suspected; you have no idea what you're talking about.

As I suspected, you have no idea how to use punctuation.

I don't know how a real SULA sounds, but that preset sounds pretty nice.

[bduffy]

Actually, I don't think that grammar is wrong. But Championrabbit's still a dick.

[Pipelineaudio]

OK, for an example, lets work off of the spec sheet for the Purple Audio MC76

http://purpleaudio.com/pdflib/PurpleMC77v34.pdf

"Frequency Response: 15Hz to 80KHz ±1dB typical"

Well we could throw an eq before the comp, but I suspect most would rather pass a full signal, but we can be damn sure the detetctors won't hear that so lets set them there to start

"Attack Time: Less than 20μsec for full limiting action
adjustable to 800μsec with front panel control"

So we know our attack range, Im gonna set 400usec to start

"Release time is
continuously variable from 50msec to 1.1sec."

Im gonna pick a low value that hopefully wont distort on the bass 100msec well try

Schematic seems to indicate this is a feedforward compressor, so Ill chose main input for the detector

"Threshold and Ratio: With the input control fully clockwise and the output gain control
set 10dB below maximum (at about 6 on the dial)
The overall gain (before limiting) should be 35dB (±1dB)
The threshold of limiting is defined here as 1dB of limiting
at 20:1 the threshold of limiting will occur with an input of -24dBu (±2dB) and yield an
output level of +10dBu
at 12:1 the threshold of limiting will occur with an input of -25dBu (±2dB) and yield an
output level of +9dBu
at 8:1 the threshold of limiting will occur with an input of -26dBu (±2dB) and yield an
output level of +8dBu
at 4:1 the threshold of limiting will occur with an input of -30dBu (±2dB) and yield an
output level of +7dBu"

I'll start at 8:1

Here is the datasheet for the 2N5088 used in the circuit http://www.ortodoxism.ro/datasheets/fai ... 2N5088.pdf

We can assume the knee is somewhere around the size of the ratio itself, so Ill just put 8dB

Im going to assume the RMS window is very fast, essentially peak

and here we go http://stashbox.org/12883/PAMC76.FXP

[bduffy]

Obviously Pipeline, you have no clue.

[koolkeys]

OK, for an example, lets work off of the spec sheet for the Purple Audio MC76

http://purpleaudio.com/pdflib/PurpleMC77v34.pdf

"Frequency Response: 15Hz to 80KHz ±1dB typical"

Well we could throw an eq before the comp, but I suspect most would rather pass a full signal, but we can be damn sure the detetctors won't hear that so lets set them there to start

"Attack Time: Less than 20μsec for full limiting action
adjustable to 800μsec with front panel control"

So we know our attack range, Im gonna set 400usec to start

"Release time is
continuously variable from 50msec to 1.1sec."

Im gonna pick a low value that hopefully wont distort on the bass 100msec well try

Schematic seems to indicate this is a feedforward compressor, so Ill chose main input for the detector

"Threshold and Ratio: With the input control fully clockwise and the output gain control
set 10dB below maximum (at about 6 on the dial)
The overall gain (before limiting) should be 35dB (±1dB)
The threshold of limiting is defined here as 1dB of limiting
at 20:1 the threshold of limiting will occur with an input of -24dBu (±2dB) and yield an
output level of +10dBu
at 12:1 the threshold of limiting will occur with an input of -25dBu (±2dB) and yield an
output level of +9dBu
at 8:1 the threshold of limiting will occur with an input of -26dBu (±2dB) and yield an
output level of +8dBu
at 4:1 the threshold of limiting will occur with an input of -30dBu (±2dB) and yield an
output level of +7dBu"

I'll start at 8:1

Here is the datasheet for the 2N5088 used in the circuit http://www.ortodoxism.ro/datasheets/fai ... 2N5088.pdf

We can assume the knee is somewhere around the size of the ratio itself, so Ill just put 8dB

Im going to assume the RMS window is very fast, essentially peak

and here we go http://stashbox.org/12883/PAMC76.FXP

Yeah, but can it emulate a 303?

[Kingston]

Obviously Pipeline, you have no clue.

not in the slightest.

what's worrying is that KVR consists of mostly beginners and all those numbers and info may look impressive and valid to them.

and hence more mis-information is spread.

didn't we only last week go through another one of these threads?

http://www.ortodoxism.ro/datasheets/fai ... 2N5088.pdf

Im going to assume the RMS window is very fast, essentially peak

that's some hardcore research and conclusions there.

[koolkeys]

Obviously Kingston, you have no clue...............














j/k

[Kingston]

Antress.








v2. round 1.







here's a thought,

why not just use Reacomp *as is*, and not pretend it's able to emulate esoteric analog hardware, a skill which only one or two developers in the world have mastered?

[Funkybot's Evil Twin]

here's a thought,

why not just use Reacomp *as is*, and not pretend it's able to emulate esoteric analog hardware, a skill which only one or two developers in the world have mastered?

Well, duh...cause if we did that we'd have to learn how to use the gear we have rather than fantasize about having gear we don't. The fantasy is always more fun.