[maxmsp] Audio Switcher

this sounds like the perfect job for a multiplexer. there are cheap  
ones for a few $/€/£ that can be controlled by any microcontroller  
like an arduino board. the switching is not particularly clean or  
fast, and you might get clicks if used in an audio-signal, but it does  
what you're describing: one input to one of several selectable outputs  
(only one connection at a time, though). if the switching is to be  
completely regular and you're good at building circuits you might get  
away with just using timers instead of a microcontroller. the  
microcontroller OTOH would give you software control over the switching.

multiplexer model: CD74HC4067 or similar

this is the run-loop of an arduino firmware that switches between four  
channels under serial control from software (using 2 bits on pins 12 &  
13):

void loop()
{
   while (Serial.available() > 0) {           // reads all characters  
from serial buffer -> only keep last one
     byte1 = Serial.read();
     newflag = 1;
   }
   if(newflag == 1) {
     if(byte1 == 49) {
       digitalWrite(12, LOW); // port 1
       digitalWrite(13, LOW);
     } else if(byte1 == 50 ) {
       digitalWrite(12, HIGH); // port 2
       digitalWrite(13, LOW);
     } else if(byte1 == 51 ) {
       digitalWrite(12, LOW); // port 3
       digitalWrite(13, HIGH);
     } else if(byte1 == 52 ) {
       digitalWrite(12, HIGH); // port 4
       digitalWrite(13, HIGH);
     }
     newflag = 0;
   }
}

cheers

/*j


> does anyone know or could give me tips/advice if i can build a  
> hardware switcher like the external Bucket?
>
> what i want to build is rather simple. the hardware takes 1 input  
> and distrubute it into say 16 outputs. After the input and before  
> the outputs, i would like to have a hardware kind of switcher which  
> i can set a timer (either in hardware or max controlled) so that it  
> sends the audio to output 1 for 10 secs, then switches to output 2  
> for 10 secs, output 3 for 10 secs and so on. i