Subject: Re: Perception of sequential tones as simultaneous tones. From: beaucham <beaucham(at)MANFRED.MUSIC.UIUC.EDU> Date: Sun, 26 Jun 2005 13:01:53 -0500Note that in most recordings there is a fair amount of reverberation. This can turn a rapid sequence of notes into a "chord" in much the same way as holding a pedal down on a piano while playing an arpeggio creates a chord. Any testing of the perception of rapid pitch sequences should take the method of tone production into account. Jim Beauchamp University of Illinois at Urbana-Champaign On Sun, 26 Jun 2005, Emilio Renard wrote: > 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(at)1729.COM> 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. > > > > > > > > > > > > > > >__________________________________________________ > > >Correo Yahoo! > > >Espacio para todos tus mensajes, antivirus y > > antispam ¡gratis! > > >Regístrate ya - http://correo.espanol.yahoo.com/ > > > > > > > > > > > > > > > > > > > > __________________________________________________ > Correo Yahoo! > Espacio para todos tus mensajes, antivirus y antispam ¡gratis! > Regístrate ya - http://correo.espanol.yahoo.com/ >