I'm interested in using fzero~ but found something odd, which I hope someone can help with.
I did a quick test on the first tab help patch with a tuning fork and the audio input. To my surprise the patch gave a frequency of about 179 Hz for the 440Hz fork.
To compound my puzzlement, I selected the oscillator option on the input, which is a cycle at 440Hz and this too gave 179 Hz for the sine and triangle waves, with only the square wave giving 440Hz.
Clearly, I'm missing something obvious; can anyone advise?