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'Persistance of hearing'
- To: AUDITORY@xxxxxxxxxxxxxxx
- Subject: 'Persistance of hearing'
- From: Craig Nicol <craig.nicol@xxxxxxxxx>
- Date: Tue, 12 Apr 2005 11:00:49 +0100
- Delivery-date: Tue Apr 12 06:16:39 2005
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- Reply-to: Craig Nicol <craig.nicol@xxxxxxxxx>
- Sender: AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>
I've been looking at Timbre Spaces for a while, in particular the
spaces by Grey in the 1970s. In one of his papers he mentions an
experiment where two sounds are chosen (let's call them A and B), and
a set of sounds is generated morphing from A to B. What he discovered
is that there is a hysteresis effect when listening to the morphing,
i.e. If the sounds are played from A to B, the listener will report
hearing A for over half the samples whereas if the sounds are played
from B to A, the listener will report hearing B for more samples.
I am vaguely aware of similar optical illusions such as persistence of
vision and I was wondering if anyone could direct me to more
information on this effect in hearing as I want to know if this effect
is particular to the timbre space or is a product of human perception.