What to use instead microphone input

[I14R10]

I got one program running. It receives data into microphone input and recognizes ones and zeros and translates them into data. But sometimes I get some noise and it recognizes them wrong. So, what are my options if I decide not to use microphone input? Arduino? Some USB interface?

[Disch]

? What are you trying to do?

[I14R10]

I got WS-2300 meteo station and I'm using microphone input to capture and decode it's signal. It works nice that way, but I'm already thinking about something better.

[I14R10]

What I wanted to ask is - is using serial port better than using microphone input? Or using USB port, or some else port? So what port do you recommend I should use for my project?