how about a modulated output or something from the speaker to assist tuning- IE a variable tone, or a series of clicks at some frequency as to provide tuning direction feedback.

maybe fallng chirps when you are too low, and rising chirps when you are too high... etc ?


On 22/09/2015 8:39 AM, Stuart Longland wrote:
On 15/09/15 18:42, David Rowe wrote:
The CPU load is proportional to the initial freq offset estimation 
bandwidth.  I'm inclined to wait a little and see if this is a real problem.
Tuning accuracy is likely to be an issue on headless systems or for
visually impaired operators.


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