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Author Topic: Interfaceing Radio (walkie) to Mixer (PA)  (Read 756 times)

augie propersi

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Interfaceing Radio (walkie) to Mixer (PA)
« on: June 07, 2019, 07:09:01 pm »

I have a request to get live radio (walkie) conversation over the sound system for a que in a show, not a problem with a DI box, the thing is when it receives it starts with a loud thump!

Any thoughts on how to eliminate this?  disabling the PL code or something?

thanks
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Tim Hite

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #1 on: June 07, 2019, 09:57:11 pm »

Noise gate with slow attack?

I have a request to get live radio (walkie) conversation over the sound system for a que in a show, not a problem with a DI box, the thing is when it receives it starts with a loud thump!

Any thoughts on how to eliminate this?  disabling the PL code or something?

thanks
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Keith Broughton

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #2 on: June 08, 2019, 06:24:50 am »

High pass the channel and try a fast attack and release, hard limiter setting in the channel compressor.
Not sure about the gate. If it doesn't open with the "thump" it seems unlikely to open with the voice.
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Miguel Dahl

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #3 on: June 08, 2019, 12:23:02 pm »

Or, if you can. Do it manually? Read off the meters when the "thump" is over, then pull up the fader?
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Tim Hite

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #4 on: June 08, 2019, 12:34:15 pm »

Set the threshold low enough to open with the voice but let the slow attack catch the pop. Should work fine.

High pass the channel and try a fast attack and release, hard limiter setting in the channel compressor.
Not sure about the gate. If it doesn't open with the "thump" it seems unlikely to open with the voice.
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Pete Erskine

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #5 on: June 08, 2019, 01:13:06 pm »

I have a request to get live radio (walkie) conversation over the sound system for a que in a show, not a problem with a DI box, the thing is when it receives it starts with a loud thump!

Any thoughts on how to eliminate this?  disabling the PL code or something?

thanks

How are you connecting to the Radio?
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Pete Erskine
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Scott Helmke

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #6 on: June 08, 2019, 04:34:12 pm »

Set the threshold low enough to open with the voice but let the slow attack catch the pop. Should work fine.

Clever - the pop opens the gate, but the gate doesn't open fast enough for the pop to actually be heard.
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augie propersi

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #7 on: June 08, 2019, 07:37:00 pm »

How are you connecting to the Radio?
Using a HT1250 radio, earphone out to DI box,

I will try all of the suggestions
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Keith Broughton

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #8 on: June 09, 2019, 08:21:07 am »

Set the threshold low enough to open with the voice but let the slow attack catch the pop. Should work fine.
Got me thinking...might try that out for another application I have.
« Last Edit: June 09, 2019, 08:25:00 am by Keith Broughton »
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augie propersi

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #9 on: June 09, 2019, 01:29:40 pm »

Set the threshold low enough to open with the voice but let the slow attack catch the pop. Should work fine.
Could not get this to work, My desk (Studer) only goes to 5ms attack time,

I will try to adjust the radio setting or will try to get them to prerecord the section
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Pete Erskine

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #10 on: June 09, 2019, 01:38:52 pm »

How are you connecting to the Radio?

Measure output to see if it has any DC when turned on. 
See if radios using side PTT are different. Hand mics might switch DC too.
Block with Non Polarized cap if switched at RX.
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Tim Hite

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #11 on: June 09, 2019, 05:49:22 pm »

That seems really short. There are outboard compressors, as well. My Presonus ACP 22 goes to 100ms, I'm sure others have even longer attack times.

Could not get this to work, My desk (Studer) only goes to 5ms attack time,

I will try to adjust the radio setting or will try to get them to prerecord the section
« Last Edit: June 19, 2019, 04:08:47 pm by Tim Hite »
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augie propersi

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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #12 on: June 19, 2019, 08:09:27 am »

I have a request to get live radio (walkie) conversation over the sound system for a que in a show, not a problem with a DI box, the thing is when it receives it starts with a loud thump!

Any thoughts on how to eliminate this?  disabling the PL code or something?

thanks

Problem solved, I build a adapter with a 10uf capacitor and a 100k resistor,

Thanks
Augie
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Re: Interfaceing Radio (walkie) to Mixer (PA)
« Reply #12 on: June 19, 2019, 08:09:27 am »


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