Hey folks,
I need to build, because I cant afford to buy, an intercom.
I am going to start wired and possibly look at wireless extension later.
The unit is for a remote gate and I want to avoid having to push buttons if at all possible.
I would like to use a single 'star' config with the potential to have multiple stations active simultaneously contributing to the conversation.
like several speakerphones in a conference call.
I will probably be able to find / build a simple voice quality amps and already know how to implement audio over a balanced pair.
What I dont know is how to prevent feedback if a station is sending and receiving signals at the same time.
I know modules are available to do this that require only a single small speaker that also acts as a mike but I would really like to understand how they work and have a go at building one.
All suggestions welcome,
Al
I need to build, because I cant afford to buy, an intercom.
I am going to start wired and possibly look at wireless extension later.
The unit is for a remote gate and I want to avoid having to push buttons if at all possible.
I would like to use a single 'star' config with the potential to have multiple stations active simultaneously contributing to the conversation.
like several speakerphones in a conference call.
I will probably be able to find / build a simple voice quality amps and already know how to implement audio over a balanced pair.
What I dont know is how to prevent feedback if a station is sending and receiving signals at the same time.
I know modules are available to do this that require only a single small speaker that also acts as a mike but I would really like to understand how they work and have a go at building one.
All suggestions welcome,
Al