Hi, I am testing WTA with Logic 8. My application recording taking iTunes BUT I am using a iTunes plug-in called 'Accubeat (free try out if you want to duplicate):

http://www.wildbits.com/accubeatmix/

which requires iTunes be treated as 'System Audio'. The problem I am having is when I send this 'device' to Logic and then try to record, it seems I am getting both the device AND Logic's output mixed together (verifiable by the fact that with Logic's output fader up WTA meters are peaking, turning the output fader in Logic all the way down solves that but now I can't hear any Logic processing (i.e. plug-ins). How do I send a 'system device' AND only hear it as serially routed from Logic's output as opposed to this parallel path mixing both outputs?

Am I not understanding the proper set up? How can I hear the output of Logic without causing this 'feedback loop'? This appears to be the case with all output if, as in my case I only have 'built in' audio (I am on portable laptop system).





btw, the AU plug-in emits the 'voiceover' continuously unlike the main version's 'trial' full functionality.

OS 10.4.11/QT 7.5

Machine Name: PowerBook G4 17"
Machine Model: PowerBook5,9
CPU Type: PowerPC G4 (1.5)
Number Of CPUs: 1
CPU Speed: 1.67 GHz
L2 Cache (per CPU): 512 KB
Memory: 2 GB
Bus Speed: 167 MHz


Thanks in advance.

Well, still trying to solve this 'parallel outputs' with no luck. Have tried:

-Unchecking all the 'tapped' references to 'Default Output' and 'Bult-in' in the left side pane options of WTA.

-Turned off 'software monitoring' in Logic, which again does not allow any monitoring of plug-in processing (same as pulling down Master Out fader).

Shouldn't it mute the audio device being 'tapped' from appearing at the main audio out if it is being routed to a device that is going to output it through that same main audio out also? Or is this the setting that is somewhere I am simply not seeing? Surely WTA is designed to hear through the device being routed to/through without original signal continuing to come out also...right?

Ok, did find one way to do it using the AU version and it's 'mute' ability THEN routing from the 'Instrument Object' (which doesn't record audio) to a bus then to an 'Audio Object'. The problem is as I mentioned before, the AU is emitting the demo 'voiceover' (first day into 'Trial') so I cannot judge audio quality at all to do a proper demo.

Is this the proper solution, for some reason the tutorials make it look simpler/different to accomplish recording into Logic (plus then the picture of multi-streams into a single stream is misleading as there is always a parallel stream along with 'device' going to output???)

Sorry for all the guessing at this here, the present vacuum of replies and my eagerness to find out how to get this going leads me to having to guess out loud to what's going on

Hi Loopy. I saw your post at Big Blue Lounge and followed the link to this thread. The loop-through is happening because on your system, you're running both iTunes and Logic to System Audio. I'm not sure my suggestion will get you all the way there, but try these steps:

1. It looks like you've left the All System Audio device in the WTA Preference window. That's the default device in WTA, which includes all audio playing through System Audio and that's where the loop-through is coming from (since on your system you need to use System Audio for Logic's output as well as for iTunes). So you need to get rid of that device (it can be recreated later if you need it) and just have one device set to iTunes.
2. Don't set Logic's Audio Driver to WireTap, but leave it on System Audio.
3. Now you'll get iTunes into Logic by using the AUWireTapAnywhere plug-in. Since this is a Generator plug-in, you'll need to put that on an Instrument channel in Logic, under the source (or input) slot and not under the normal channel inserts. Then in the plug-in window pull down the "WireTapped Audio" menu and select iTunes. In the lower portion of the plug-in window on the right side of the meters there is a Mute switch. Click that and you'll then hear iTunes playing through Logic and not directly from iTunes.

Does that help at all? If not, then I'm sure the gurus from Ambrosia will be able to get you going when they have time to weigh in. I think they're kind of busy right now out at New Media Expo.

Cheers.
jb

Thanks for the reply jbmix.

I also tried doing it with 'iTunes' as opposed to 'System Audio' with same 'loop through' problem. I did manage to get it to work (with iTunes WITHOUT the 'Accubeat' plug-in) following your 'logic' (pun intended) which i must have posted when you were replying (see my post right above yours).

Unfortunately, the plug-in is already in the 'voiceover' mode for some reason so can't really do much with it, guess i will wait to see what the boys from Ambrosia have to say, especially concerning the situation with the iTunes plug-in that needs to be system audio.

Thanks again, as you can see I was starting to just rattle on all being 'all alone' here

Thanks jb, got your message What I mean by 'multiple streams' is that the 'virtual device AND the original app (in this case iTunes not system audio) BOTH appear at the output, one traveling via the WTA device through Logic AND the other coming straight out of app (iTunes) at same time (thus the plug-in 'Mute' fix). Seems like the main WTA device needs this same 'mute' switch'?

Funny thing about the 'voiceover', it is ONLY the plug-in, the main WTA app is acting as described in the 'read me' (fully functional for 30 days).

Loopy, as soon as we decompress from the New Media Expo, I'm going to have our engineers look into the problem/situation you're describing.

Thanks Andrew, aslo left you some 'feedback' concerning this over at 'Big Blue'.

Appreciate your reply as I know you are VERY busy at the moment, if I could JUST get the AU to demo without voiceover as soon as possible (my 30 days are 'ticking away'), I can fiddle around for myself till you are more free

Turns out what Loopy needs is a "mute" option for sources he is wiretaping... we can do this!

The voiceover on the AU Generator is a bug. We'll fix that in the next update.

Thanks Andrew. btw, my 30 days has been ticking way since the 14th, will the AU come in time for me to demo it properly you think?

Yes.

Just for you, Loopy... ask and ye shall receive:

Thank you sir, can verify all is working well in general so far with main and plug-in versions into Logic with 'Mute' now implemented in both...will keep you posted per mailing list as i attempt some variety of applications