Search found 5 matches

by rwingraham
Thu Aug 20, 2009 10:13 pm
Forum: General Discussion
Topic: How to connect RCA Audio to Telco Line?
Replies: 4
Views: 1032

How to connect RCA Audio to Telco Line?

Hello All! I am trying to connect the output of an audio mixer to an analog phone input on a PBX in order to supply on-hold music. My audio mixer has 24 TRS outputs that can output either balanced (+4dB) or unbalanced (-10dB) analog mono audio. The PBX has 24 analog phone inputs (tip-and-ring). Afte...
by rwingraham
Thu May 07, 2009 2:28 pm
Forum: General Discussion
Topic: Audio Ducking Amp
Replies: 21
Views: 2853

Re: Audio Ducking Amp

dacflyer - how much do you want for your jukebox units?

Thanks,
Bob
by rwingraham
Thu May 07, 2009 2:27 pm
Forum: General Discussion
Topic: Audio Ducking Amp
Replies: 21
Views: 2853

Re: Audio Ducking Amp

Thanks MrAl - I definitely want to build one, and since I'm a software engineer by trade, going the microprocessor route is appealing.
by rwingraham
Tue May 05, 2009 4:16 pm
Forum: General Discussion
Topic: Audio Ducking Amp
Replies: 21
Views: 2853

Re: Audio Ducking Amp

Hi MrAl,

This is cool - thanks for the reply!

I have no problem using a microcontroller - Is there an advantage to using the microcontroller version vs. the disrcrete component version? (e.g., cost, complexity, reliability?)

Thanks,
Bob
by rwingraham
Tue May 05, 2009 2:58 pm
Forum: General Discussion
Topic: Audio Ducking Amp
Replies: 21
Views: 2853

Audio Ducking Amp

Has anyone had experience with building a ducking amp? Or know where I can get some schematics or a kit? The problem: I have four prioritized audio inputs and one audio output. The audio inputs are prioritized as follows: 1 is the highest priority, 2 is next highest, etc., 4 is the lowest. What you ...