What? Although the method described to record the signals might work, the method described to play them back wouldn't. The voltage out of a regular headphone jack isn't high enough to power an IR LED, correct? The Griffin TotalRemote works by incorporating a capacitor, hence the bulgy design. When the IR signal is recorded, it is converted to a sound file so it can be played on an iPod/PDA. A short, high burst of sound waves is added to the beginning of the sound file, just powerful enough to charge up the capacitor until there is enough voltage for the IR recording to be released, powering the LED. Pretty cool, huh? Just thought I'd let you know.Someone Electro said:This should work whith any mp3 player.
What you do is conect an phototransistors to your PCs microcphone input and record an signall from an remote.Then you save it as an mp3 and the portable player will play back that signal in to an IR LED conected to the headphones plug.
Its an realy simple idea.But 44Khz (the sampeling rate) is a bit close to 38Khz (the freq. remotes work on).
Im thinking of building an PIC music player out of an old 30GB PC harddrive(I have one laying around).The loop that reads it mus not be more than 200 instructions long on an PIC18F. (If more the sampleing rate would become too slow for audio)