After reading a bit on the other thread about the possibility of recording on the nano I decided to give it a test via the line-in connection on the dock connector. I soldered up pins 1 and 5 according the pinout listed here
to a wire stub. I connected the stubs to my receiver headphone output for the right channel only.
Hitting record resulted in this
file. At first I had the volume pretty low and slowly brought it up until I saw a read on the level meter in the record application. Towards the end I wahwahed the level around a bit, not sure why it just seemed fun. The OS was pretty well locked up after recording and I had to hard restart the iPod to get it back to disk mode to copy the file off. It might have been something simple like me not knowing the proper key combination to exit the recorder though
The file is just a zipped and renamed copy of the wav I copied from the nano.This
file I cranked through audacity adding a 36dB boost and trimming it down to a good chunk of Kelly Joe's song.
I think if I had gain adjustment on the recorder I could probably get the level adjusted for a cleaner copy. I'm doubting this is crosstalk and is indicative of the ADC line-in functioning mostly like it should but i'll leave it up to the developers of this great little chunk of firmware to decide. I didn't push the receiver output very much. I also didn't take the time to measure the RMS voltage on the reciever output but I could easily do that for a second test if anyone would like to.
So long and thanks for the firmware,