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PostPosted: Wed Feb 15, 2023 3:03 pm 

Joined: Thu Aug 11, 2022 11:49 am
Posts: 2
hello there,

we are having issues with sychronizing our fm transmitters.
We have our studio computer, which has audio going through stereotool, and stereotool also streams the audio towards 2 locations where our transmitters are.
On both of the sites of the transmitters we have internet and a computer with stereotool receiving the audio and sending it to the transmitter.
But the audio is not in sync - sometimes up to 30 sec of difference.
I was reading that we need a gps receiver if it's a SFN , but our transmitters are both on different frequencies. Do we still need a gps to make sure the signal is synced?
Thanks for the advice!

PostPosted: Fri Feb 17, 2023 4:23 pm 

Joined: Tue Nov 05, 2013 10:24 pm
Posts: 77
Best way to do that is with micrompx. Process audio at studio and send via micrompx to 2 micro mpx decoders , each one at each transmitter.
With that configuration you wil have all stereotool processing benefits and any issue with sync between 2 frequencies.

PostPosted: Fri Feb 24, 2023 3:42 pm 

Joined: Mon Jun 08, 2015 7:28 pm
Posts: 94
Location: Belgium
On the 2 transmitter site, do:
Into FM sound card tab,
Set Buffer size to suffcient size. For ex if your stream is 320Kbps, but 10 sec buffer size.
Enable Synchronize FM Signals with:
Relative Adjust 5.00%
Turbo 20.00%
Resampling quality 32

Now your transmitter should be synchrone. If you have systematically a delay you can adjst slowly Extra delay on one transmitter to have both synchronized :-)

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