Possible to Adjust Airplay Lag to Sync Multiple Airplay Speakers?

When playing to 2 different ATV2s, my iTunes music is not in sync between two sets of speakers. Is there anyway to adjust the lag time to one of the ATVs?


Here is my setup:


- Living Room - one ATV2 hooked up to my TV via HDMI, with powered speakers hooked up to my TV's audio output;

- Bedroom - one ATV2 hooked up directly to powered speakers (only used for music).


After reading through the forums, I am fairly certain the sync problem is due to the extra time my TV takes to process the audio signal before outputting the audio to the connected speakers. But what I have not been able to find is a solution to this problem. Basically what I need to do is delay the signal to the bedroom ATV maybe 0.5 seconds. Are there any 3rd party applications that can fix this? Will Apple ever release a solution?

MacBook Pro, OS X Mountain Lion (10.8.2)

Posted on Jan 14, 2013 5:23 PM

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6 replies

Jan 29, 2013 6:10 PM in response to Hollywoood

I just found something out about the Rogue Amoeba software Airfoil on another thread here. People are complaining that there is something wrong with the Pioneer recievers (my reciever as well) as this is where they experience the delay. I don't think they understand that the reciever, like your TV, is processing the signal before it outputs it to the speakers as opposed to basic powered speakers that just shoot the signal out. Anyway the aforementioned software has an option to delay the signal of the individual airplay devices. I have used this software before and it has given me fits with much more severe sync issues in the past, but that was years ago now, so maybe they have fixed that. I haven't tried it recently. Anyhow, here are the instructions I found for individually syncing the devices using the Rogue Amoeba Airfoil;

We do offer a manual sync adjustment, as a debugging tool, in Airfoil. Please note that this is not supported for everyday use - on a network which is functioning properly, it shouldn't be needed at all. That said, you can try it if you like.


To enable the sync adjustment, follow these steps:


1) Quit and re-launch Airfoil while holding down the option key. This will bring up the debugging window.


2) Turn the Sync Adjustment debugger to On, and click Done.


Now each remote speaker will have an additional slider below the volume slider - that's the sync adjustment. The center is 0 offset, and the ends are +/-1 second. Adjustments only take effect when connecting, so if you're experimenting with it, you'll need to disconnect, adjust, and then reconnect to see how well it worked.


Airfoil will remember your adjustments after you quit, even if you turn Sync Adjustment off. (All that does is enable/disable the GUI, not the adjustment settings.)

Dec 27, 2015 5:01 PM in response to krispy01

REALLY nice post here. Thank you. My Samsung Galaxy S5 was having Lag and no other connectivity issues. I'll mention to everyone it's a small slider with no numeric value.

  1. Gently move the debugging slider a pixel or two in either direction.
    • left is PLAY LATER than source
    • Right is PLAY EARLIER than source
  2. Disable broadcast to the device in question.
  3. Re-enable broadcast to the device to hear the timing tweak.
  4. Have fun because this is really freaking well written software and makes for an epic party when everyone takes their phones out.


Cheers!

Jan 29, 2013 5:38 PM in response to Hollywoood

Hey Hollywood, I have a very similar problem. I run one airport express through my AV reciever and two others with simple powered speakers. The AV reciever does some sound processing so there is a slight delay compared to the powered speakers. Doesn't look like anyone has replied to your post with any suggestions. Found any solutions? I certainly haven't.

Jan 3, 2014 4:52 PM in response to krispy01

Oh man that's a GREAT solution.

I already had Airfoil installed, but needed an update. I got that and then walked around my house with my MBP timing each speaker set so they were in sync. Walking through once they were all running was a JOY.

I immediately ponied up the $25 for Airfoil's full version. Apple is absolutely insane for not including this in iTunes.


In any case, i'm now using Airfoil at all my parties. **** yeah.

Oct 29, 2014 10:34 AM in response to phatty82

So I just ran across this post. Is this solution using Airfoil still working for you?


I'm spoiled with a couple Sonos units which take care of 80% of our house needs, but I keep messing with the Airplay options. I find the syncing issue to not be consistent enough to set it and forget. It is awesome the Rouge Amoeba guys put this function in their product. Do you find you just set it and forget it, or do you need to modify the settings over time? And, do you use their IOS remote application? Do you like that?


Thanks in advance.

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Possible to Adjust Airplay Lag to Sync Multiple Airplay Speakers?

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