Effects side-chain problem

I need to use the side-chain of the compressor and control it using the output of am instrument track, but the only sources that are displayed in the side-chain window are audio inputs and audio tracks. How do I correct this?

David Toppel wrote:
...or just use a bus send from the instrument track, without an extra auxiliary channel. That seems to work!
That's exactly what I said! Logic automatically creates the aux track for the bus for you when you change the output to the bus but I thought I would explain it that way so it was easier to understand...

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Side chain in logic 8

Hi guys can anyone point me in the direction of a good tutorial for side chain for dance music tracks in logic 8? i've read the manual but it still dosnt really make much sence to me, i think im a bit stupid.
thanks.

Without specifying what you actually want to do (side chaining is a technique to achieve certain effects, not an effect in itself) here's some general things to read:
http://discussions.apple.com/thread.jspa?messageID=3927558
http://discussions.apple.com/thread.jspa?messageID=5137845
http://discussions.apple.com/thread.jspa?messageID=5081924
http://discussions.apple.com/thread.jspa?messageID=3706436
http://discussions.apple.com/thread.jspa?messageID=3007887
http://discussions.apple.com/thread.jspa?messageID=3946575
http://discussions.apple.com/thread.jspa?messageID=4650819
(Yes, I stuck the word "side chain" into the forum's "Search" function...)

Side-chain filter does what exactly?

I'm sure this must be covered somewhere, but I can't find specifics in the manual or previous posts here.
Which signal does the side-chain filter in LP8's compressor affect--the side chain signal (i.e., compression only occurs when certain frequencies are present in the sidechain source signal) or the audio that's being compressed (i.e., only compresses certain frequencies in the track in which the compressor is inserted)?
If it's the former, how does one compress only specific frequencies using a side-chained signal? I'm asking partly because I want to use a kick drum to compress a somewhat bright bass, but I'd like to try compressing only the lower frequencies of the bass, down where the kick drum's frequencies overlap.
Hope I've explained this all clearly.

Randall--thanks so much for all your info. Like Dalek, I initially thought the side-chain filter does what I needed to do, but I guess not. The solution is a bit complicated, but that's not your fault; you didn't write the software, and at least you thought of a clever way to do selective-frequency ducking in Logic. I haven't had time to try it yet, unfortunately, but hope to tomorrow. I've taken the liberty of pasting below your post that you linked to on the Logic Pro Help board (hope this is OK), mostly so that anyone else with this same problem can find the answer all in one thread.
Randall's post:
Pursuant to my previous tip on improving noise gate performance:
http://logicprohelp.com/viewtopic.php?t=17553
. . . a couple of people asked me if I'd write up how to do selective frequency bandwidth ducking to improve a signals presence in a busy mix. So I thought Christmas day would be a good time to write this up and create an example as I'm deliberately not doing any "real" work today!
So here's the typical problem. A bunch of noisy guitars driving along and you want to inject an acoustic guitar or vocal lead in there once in a while. But you can't get the track hot enough or eq'd enough to overcome the noisy guitars. Ducking the guitars with either automation or a sidechained compressor might be too noticable, so this trick allows you to just duck the specific frequency range that is masking your lead track. Here's how to do it:
Note: the attached LP8 example just uses some stock Apple Loops that everyone should have, (I hope).
1. This is a mix technique and we'll be assigning plugs to auxes, so make sure PDC is set to "All" in your preferences.
2. Assign your noisy guitar tracks to a bus. We'll use bus 10 as in my example.
3. Assign your lead track to your main outputs. Create a Send on this track to bus 11 and set its level to unity, (ctrl-click the send).. This will also create an aux in your mixer. Delete this aux.
4. Create 2 new aux channels. Assign both their inputs to Bus 10, and both their outputs to your main outs.
5. Don't put any plugs on the first aux. On the second aux, (from top to bottom) place a Linear Phase EQ, a Noise Gate, then a Gain plug.
6. Set the EQ up with a Lopass and a Hipass only, with steep 48dB/oct slopes. Leave the Q at .71.
7. Set the Noise Gate as follows.
Threshold & Reduction: -100dB
Attack, Hold & Release: 0mS
Hysteresis: -20dB
Lookahead: 20.000mS
Sidechain: Bus 11
8. Open the Gain plug and enable Phase Invert(s). Close the Gain plug.
Here's what's happening in my example. When the acoustic guitar plays, the gate opens up on the second aux track that has the flipped phase noisy guitar signal. With the EQ bypassed and the aux faders at unity, you'l hear none of the noisy guitars as they will cancel out. In my example, I want to hear more of the body of the acoustic guitar which is about 225 to 1300 Hz so that's what I've set the EQ to pass. So now everything below and above that band won't be canceled. If I drop the fader down on the second aux, then the signal isn't cancelled as much.
When the acoustic plays, the body of the guitar sound comes through the mix a bit more as I'm attenuating the noisy guitars just in that band and just while the acoustic is playing. So your guitars can keep driving along!
You have a lot of control as you can tweak the reversed aux's fader for the amount of ducking and tweak the lo and hi pass freq parameters on the EQ to tune the band that gets ducked.

Side chains?

Have posted about this before but hoped upgrade to SP3 would fix the issue relating to routing external side chain signals.
The noise gate (and I see the Ringshifter too) have side chain options that seem to offer the use of external signals to control the audio, but I can't find a way to route audio into these plugins.
It appears the noise gate only allows the use of the side chain filters on the original input signal (to help to narrow the frequency that is to be gated without actually affecting the main signal). However the pdf manual (that was hidden in the app package so was unsearchable by Spotlight before) has now become an Apple Help file, and has indeed had some level of rewrite, including a bit about the noise gate..but it still states that "When no external side chain is selected, the input signal is used as the side chain." which infers that use of an external signal is possible.
Equally with the ringshifter plugin I can see no way of accessing an external source. In Logic there are drop down lists in the menu bar that houses the plugins to select a side chain routing.
Any ideas? as I would really like to use the gate to perform some 'ducking' tasks!

P.S. the side chain info is in the STP Effects Reference pdf not the user manual

Side Chains and ducking

I am working on a dubbing project and need to copy the original soundtrack so that the new vox 'ducks' the music/fx slightly.
Although STP uses some of Logic's plugins (e.g. the compressor) it doesn't seem to have their ability to side chain, i.e. there is no drop down menu in the plugin bar.
The noise gate has a side chain facility but I can't see how to use it without a specific routing. I have tried using sends to a bus and inserting there but to no avail.
The STP manual mentions usage of the sidechain (pg54) relating to working with an external drum signal but it appears that this section has been lifted from the Logic Studio manual...
Any ideas?

P.S. the side chain info is in the STP Effects Reference pdf not the user manual

Naming of bus channels showing up in side chain menuLogic 9

Hi
In mixer view, Im using a kick which Ive sent to its own bus to use for side chaining, which is on bus 12, Ive installed a compressor on another track (Midi instrument track) in the side chain menu the bus channel just shows up as 12 not the name that i gave it.
In the drop down side chain menu the audio tracks show up as a the number, with the name next to it.
The midi tracks show up as just the number,with no name?

Solved the problem,
First it was Ultrabeat as Sidechain trigger... I mixed with two techniques and looped the ultrabeat when it was already looping inside the ultrabeat...
and other sound problems I guess are over cause of leveling the volume correctly,
while side chaining...
I guess I was too excited to start working with logic, didn't noticed that the audio engine is a bit different than cubase I guess...
still having some minor problems in other logic stuff, but happy that I've solved that issue...

Side chain issues

side chain issues vocal won't trigger evoc 20 poly synth i have my vocal on audio 1 i have set the side chain to audio 1 and the signal to voc by the way i should mention the synth is on its own instrument track i need a quick response please everything is updated

Once you've set the side chain input, you have to record enable the evoc 20 poly synth and play your MIDI keyboard while playback...you'll hear the vocoded effect on your vocals.
P.S. Make sure that evoc 20 is set to "voc" mode...
And another quick thingy, just fiddle around with the evoc 20 incase if you are not happy with its sounding...:)

Effect with Chain row

Hi All,
what is the problem is my tables are effected with chain rows
How to solve the problem?
what is the solution?
Regards.....

Chained rows mean your table has had a lot of updated rows, and the space at PCTFREE is not enough to hold all the updated fragments within the same oracle block, so Oracle decides to place the updated row at the "nearest" possible block, leaving behing just a pointer to the new location.
When you try to access the row, the old block is searched, and when trying to retreive the row, just a pointer to the new location is retreived, causing the system to look for the updated row at the next location.
Result double IO operation = performance degradation.
In order to avoid chained rows, increase the value of PCTFREE, so that from now on the new Oracle blocks have more space to handle updates within the same row.
On the other hand, to fix the already chained rows, use:
1. export/import
2. CTAS - create table as select ...
3. analyze table ... list chained rows (the utlchain.sql script is required) and fix only the affected rows.

After Effects Warning: A problem occurred when processing OpenGL commands

Hi There Fellow Adobe After Effects Users.
Please could some one help assist me with the following error i am getting.
I bought a template and needed to do a logo animation reveal. It was done using After Effects CC for PC.
AE had to then convert it to Mac which did so successfully. I was able to modify, add my logo and render out.
The following day i opened the file again and it gave me the follwoing error:
"After Effects Warning: A problem occurred when processing OpenGL commands"
What is confusing to me is that this issue would normally appear if my graphics cards did not support OpenGL, and it would not have opened in the first place if it was not supported.
My graphics card is a - ATI Radeon HD 5770 1024 MB - running Mavericks OS. So i know that this card does support GPU acceleration.
Please could someone point me in a direction that will fix this.
Thank you so much

Thank you for the update Mylenium.
If I look at my display info, the card says OpenGL engine. Does this mean anything?
If it's not supported, then what's the point in purchasing a Mac If you cannot use AE's full capacity. Mac doesn't put Nvidia cards in there machines and on the Adobe website, ATI cards ate not listed; but in the same breath it says that most ATI cards that have come out in the past 5 years are supported. Surely Adobe and their technicians must have spoken with Mac technitions.
I am considering to buy the new Mac Pro; but am definitely going to change my mind if I cannot use AE's full compatibility. I don't see why spend so much cash if the cards aren't great.
Please could you then tell me what functions to switch off in the project file. I'll get the guy whom I bought the template from to switch of those functions.
Thank you.
Have a great day

Process chains problems : Working every day with error (red)

Hi All,
I have a next question, about process chains problem.
When I start my process chains immediate, then working without errors, but I want this process chains work every day and chainged properties, selected date/time and periodicaly (every day) but now it work with error.
How to I find problems? What are yours offers?
p.s. I see logs, but every day have diffence between errors.
Regards,
Mahir M. Quluzade

HI,
just check the time which you have given is OK or is overlappintg with some other job which is locking your table in process chain
or is colliding with attribute change run
or it fails because of lack of background processes.
There could be numerious reasons and you need to analyze the log for this.
But as you said the job is failing everday for different reasons..try to find the most common errors and try to remove it or mention that here.
Thanks
Ajeet

Servlet chaining problem..

import java.io.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
    public class Deblink extends HttpServlet {
      public void doGet(HttpServletRequest req, HttpServletResponse res)
                                   throws ServletException, IOException {
        String contentType = req.getContentType(); // get the incoming type
        if (contentType == null) return; // nothing incoming, nothing to do
        res.setContentType(contentType); // set outgoing type to be incoming type
        PrintWriter out = res.getWriter();
        BufferedReader in = req.getReader();
        String line = null;
        while ((line = in.readLine()) != null) {
          line = replace(line, "<BLINK>", "");
          line = replace(line, "</BLINK>", "");
          out.println(line);
      public void doPost(HttpServletRequest req, HttpServletResponse res)
                                    throws ServletException, IOException {
        doGet(req, res);
      private String replace(String line, String oldString, String newString) {
        int index = 0;
        while ((index = line.indexOf(oldString, index)) >= 0) {
          // Replace the old string with the new string (inefficiently)
          line = line.substring(0, index) +
                 newString +
                 line.substring(index + oldString.length());
          index += newString.length();
        return line;
What is pre request fo above code to work.
I had tried this many time but it is not working, what will be calling servlet look like

And can you explain why your title is "Servlet chaining problem"?

Proces chain problem in production

Hello friends,
i have faced the process chain problem in the production as "Status change of process ZD_BDIT_ACTIVATE" save status and trigge event if appropiate ? . and displayed message is " ABAP/4 Processor :DBIF_DSQL2_DEFAULT_CR_ERROR" . i want help to solved this problem and what exactly the problem is?
actually this problem came to activation and its indicated red but when i went to data target and then i show that activation is not started or not trigger. please give me what is exactly problem and what is the proper solution.
please reply me as soon as possible.

Quick Checks:
1. Check the status of User in R/3 which you have used in the RFC destination i.e SM59 and IDOC Adapter ? if it is locked , then unlock it. If password is the problem, then try to change the password.
Don't reset it ...
2. Also check out the status in XI, SM59... what is the user used ? is it correct etc... by testing the connection
3. I think the IDOC Metadata is having problem.. Go to IDX2 and reimport the metadata in XI.
Also note that, it is prefer to use Service User in SM59, and IDOC adapter instead of dialog use in the Production environment. so that no problem of locking etc
Hope this helps`
Rgds Moorthy

Side chaining in LE 7.1.1

Hi
been having trouble being able to side chain the noise gate in logic LE, when i open up the plugin there does'nt seem to be a button on the grey bar at the top of the plugin to access the side chain? can anyone help?
cheers

Sidechaining is, unfortunately, unsupported in Logic Express.

I have treated photos in final cut using effects. The problem is I can not export them. Please help me. Thank you-

I have treated photos in final cut using effects. The problem is I can not export them. Please help me. Thank you-

Ernest,
This is how I do it: With all the video & still's in the time line, I click on each (even if I have to use the command key and click on each file). When each file is active I go under SHARE- go to EXPORT MEDIA- I use the Apple Pro Res codec 4:2:2. If you do not click on each file in the time line it will not be exported out.
Hope this helps.

Side chaining an oscilator

So I am trying add a kick Oscilators for some low end. So i created a new track and put a limitor on it and the plug in for the test oscilator but the button to side chain it to the kick does not come up. what am I missing?

Try a compressor instead or even better use the noise gate Plug-In for that - the limiter doesn't have a sidechain function..

Effects side-chain problem

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