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Re: Perception of sequential tones as simultaneous tones.
In my dissertation "Temporal Coherence in the Perception of Tone Sequences",
I describe the phenomena that can be observed in rapid two tones sequences.
See page 48 for the boundaries for 'simultaneity', 'best pitch jump' and
'brief period of silence'.
The thesis is on-line at:
I hope this helps,
Leon van Noorden
De : AUDITORY Research in Auditory Perception
[mailto:AUDITORY@xxxxxxxxxxxxxxx] De la part de Emilio Renard
Envoyé : zondag 26 juni 2005 11:14
À : AUDITORY@xxxxxxxxxxxxxxx
Objet : Re: Perception of sequential tones as simultaneous tones.
Thank you for your answer. I understand your
explanation, but I refer
to something more basic: to the perception of rapid
tones and physically not simultaneous as simultaneous.
Per exemple in the line of the researches of Rasch
about real simultaneity in poliphonic music (although
here the sounds are normally relatively larges and
then, intuitively, I think that it seem more normal
that they are perceived as simultaneous) or the
phenomenon of the aparent temporal continuity (here
there is sounds no simultaneous that are percived as
simultaneous), or perhaps (I still have that read the
paper) in the case of the "Pitch for non-simultaneous
succesive harmonics" (Hall & Peters, 1981 JASA, 69).
Dorrell <aud@xxxxxxxx> escribió:
> This may be stating the obvious, but if the notes
> from a chord are
> played sequentially, and not necessarily very
> rapidly, then they will be
> heard "as a chord". So, for example, if you play C,
> E and G
> sequentially, you will perceive the chord C major
> (=CEG). This implies
> that the response of the neurons in the cortical map
> (or maps) that
> respond to chords must be somewhat independent of
> whether the different
> tones involved are simultaneous or sequential (and
> at least some of the
> neurons involved must have a response function where
> the neuron
> responding to a particular tone remains active after
> that tone has
> finished). In which case perception of the chord is
> not a very good
> criterion for determining perception of
> simultaneity. (My guess is that
> such a "chord-perception" cortical map actually
> exists to perceive
> relationships between different pitch values within
> a single speech
> melody, and because of how it operates, it just
> happens to be able to
> respond to relationships between simultaneous tones
> as well.)
> Philip Dorrell.
> Emilio Renard wrote:
> >Dear all:
> >I am a new member of Auditory list. (I´m sorry!, I
> >don´t speak english, so my english is bad).
> >I would like know if there is some studies about
> >perception of sequentials tones as simultaneous
> >More specifically, I would like know if a sequence
> >two (musical) tones, they very rapid and without
> >silence between they, can be heard simultaneously,
> >a chord. And if it is so, I would like know the
> >physical conditions for that it occur.
> >Sincerely, Emilio.
> >Correo Yahoo!
> >Espacio para todos tus mensajes, antivirus y
> antispam ¡gratis!
> >Regístrate ya - http://correo.espanol.yahoo.com/
Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
Regístrate ya - http://correo.espanol.yahoo.com/