Re: Perception of sequential tones as simultaneous tones.

[Al Bregman <bregman@xxxxxxxxxxxxxxxxxxxx>]

Dear Leon,

I'm pleased to see that your dissertation is now available online.  So many
people have asked me to duplicate my copy for them that it's falling apart.
It's an excellent piece of work and I'm glad that it's now widely
available.

Al

---------------------------------------------
Albert S. Bregman, FRSC
Emeritus Professor
Psychology Dept., McGill University
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----- Original Message -----
From: "Leon van Noorden" <leonvannoorden@xxxxxxxxx>
To: <AUDITORY@xxxxxxxxxxxxxxx>
Sent: Sunday, June 26, 2005 3:39 PM
Subject: Re: Perception of sequential tones as simultaneous tones.


> Dear Emilio,
>
> 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:
> htetepe://alexandria.tue.nl/extra1/PRF2A/7707058.pdf,
>
>
> I hope this helps,
>
> Kind regards,
>
> Leon van Noorden
>
>
> -----Message d'origine-----
> 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).
>
> Emilio Renard
>
> 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
> > the
> > >perception of sequentials tones as simultaneous
> > tones.
> > >More specifically, I would like know if a sequence
> > of
> > >two (musical) tones, they very rapid and without
> > >silence between they, can be heard simultaneously,
> > as
> > >a chord. And if it is so, I would like know the
> > >physical conditions for that it occur.
> > >
> > >Sincerely, Emilio.
> > >
> > >
> > >
> > >
> > >__________________________________________________
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> > >
> > >
> > >
> > >
> > >
> >
>
>
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