trying to get PD to work on a RaspberryPI with the Wolfson audiocard.
At the moment I am following this procedure:
but keep getting a message
W: GPG error: http://apt.puredata.info wheezy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9F0FE587374BBE81
would someone know where to find further info on this
also tried "apt-get install puredata", which installs fine and opens and runs sound if one chooses NOT to use the WolfsonCard , with the card chosen I get "I/O stuck"
any suggestions to get pd working here are very welcome
thanks in advance