I would like to take 2 or three audio headphone inputs As a1 a2 a3
and one output o1
if audio exists on a1 then switch a2 off shunt then turn on a1
after a timedelay then switch off a1 shunt and turn on a2
this could be nested so that a third audio input can be accepted.
i would like to work with 6v powersupply as well
Solution 1:
a MAX4765ETC
(http://www.maxim-ic.com/datasheet/index.mvp/id/4173)
looks like it will do the trick, but how to intergrate and connect up is a question. also how would i include a time delay. just so that pauses in speech wont chatter the signal.
solution two:
combine this voice over ptt schematic
(http://www.zen22142.zen.co.uk/Circuits/Audio/v_over.htm)
with this audio sensor
(http://www.discovercircuits.com/PDF-FILES/AUDIODETECT1.pdf)
or solution three:
http://www.edaboard.com/thread199169.html
which solution should i pursue given a 6v battery supply desire to control the time before switch return occurs?
and one output o1
if audio exists on a1 then switch a2 off shunt then turn on a1
after a timedelay then switch off a1 shunt and turn on a2
this could be nested so that a third audio input can be accepted.
i would like to work with 6v powersupply as well
Solution 1:
a MAX4765ETC
(http://www.maxim-ic.com/datasheet/index.mvp/id/4173)
looks like it will do the trick, but how to intergrate and connect up is a question. also how would i include a time delay. just so that pauses in speech wont chatter the signal.
solution two:
combine this voice over ptt schematic
(http://www.zen22142.zen.co.uk/Circuits/Audio/v_over.htm)
with this audio sensor
(http://www.discovercircuits.com/PDF-FILES/AUDIODETECT1.pdf)
or solution three:
http://www.edaboard.com/thread199169.html
which solution should i pursue given a 6v battery supply desire to control the time before switch return occurs?
