Ross Bencina wrote:
On 7/08/2013 2:38 AM, Theo Verelst wrote:
I suppose in EE terms, if you know something about the waves you're
...
You would need a definition of note onset that somehow includes
segmenting a hummed glide transition from one pitch to another according
to Robert's transcription rules.
Hmhm, but in the digital domain you probably want some sort of signal
path to measure that, get the distinction between the one note and the
next right, and I'd prefer to know what's reasonable possible within the
theory perimeter to get done well. You could presume a pitch change of
the voice as being a higher excitation note through the vocal tract as
more or less time-fixed filter, or you could presume all sounds to be
more or less cyclic waveforms, lots of options. If it's a choir in a
reverberant space, far from the microphone with coughs and booklet
dropping sounds, it's a whole other ballgame, where trivial solutions
are likely to often fail.
T.
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