I forgot something, it really was R//C//(5.1V Zenner) Gonzalo ----- Original Message ----- From: "Gonzalo Jiminez Yamasaki" To: Sent: Saturday, October 14, 2000 8:29 PM Subject: Re: [EE]: How to eliminate "pop" in a ISD1420? > First of all, thanks again to all of you, I've finally solve my problem. > Solution: > > At the output of the amplifier, I put a diode to rectify the AC signal, > then use a cap. (between cathode and ground) in parallel with a resistor, > with that I obtain a DC level while a message is playing, when the messages > ends this DC level goes to zero, I use this falling edge to interrupt a PIC > and shut the amplifier off. > > Well, now I have another problem, how to reduce "buzz"... > > I guess it's little enough but, I'd like to improve it... does anybody > have some secrets to fight buzz? > > Thanks in advance, again... > > Gonzalo > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > "[PIC]:","[SX]:","[AVR]:" =uP ONLY! "[EE]:","[OT]:" =Other "[BUY]:","[AD]:" =Ads > > > > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.