Recently I was looking for a chip to record sound. I came across a chip ISD1700. This chip can store 60sec of sound at a sampling rate of 8khz. This then got me thinking. Is there any way of recording sound on an SD card and then playing it back through an amplifier (like an LM386) and speaker? An SD card will hold much more. I haven't a clue as to where to start with something like this. Has anyone done this and if so how is it done? I apologise if this is not the right forum for this question.