Sound-related Illusions Phy103 Physics of Music

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Sound-related Illusions Phy103 Physics of Music

J. S. Bach's group per tonus An extremely renowned case of an interminably rising song is the ordinance per tonus from Johann Sebastian Bach's Musical Offering. The tune rises two half-conditions each time the ordinance is rehashed (this ought to delineate the rising magnificence of Frederick the Great to whom the Musical Offering was committed). The group begins in C minor. After the primary run it closes in D minor, so the second turn starts two half-tones higher than the first. At the point when the group is rehashed facilitate, it starts in: c1, d1, e1, f#1, g#1, b 1, c2, d2.

Canon circularis per tonos (Bach) A melodic offering

Descending Pitch Illusion http://asa.aip.org/demo27.html

Falling chimes Pitch is really rising despite the fact that it sounds like it is tumbling From: http://listverse.com/2008/02/29/best 10-staggering sound-figments/

Endless rising pitches Each tone contains partitions 7/6 of an octave with an envelope that is settled Each tone is moved by 100 focus or 1 semitone

Opening tune from anime arrangement GunXsword

A Melody of Silences http://www.kyushu-id.ac.jp/~ynhome/ENG/Demo/illusions.html c2000 Yoshitaka Nakajima

Reflection as a compositional topic Bartok "Subject and Reflection", Mikrokosmos, vol 6, #141 played by Jeno Jando Can your ear choose the intelligent tonal symmetry without seeing the music? Two tunes played one goes up while alternate goes down and the other way around

Now with the music

Now with the range? Is the intelligent tonal symmetry clear in the range? Contrast how simple it is with SEE this example contrasted with that it is so natural to HEAR this example

Earthquakes from some place in Ethiopia – Cindy Ebinger BOVE Original document examined to 50Hz We duplicated by 400 to 20KHz 2 hours of information lessened to 18s turned around No time inversion symmetry in hearing

Can we choose time inversion symmetry (tune took after without anyone else's input played backward request)? Without the music Anton Webern, Opus 27

Reflection in time - now with the music Axis of symmetry is a period Example from Larry Solomon) Anton Webern, Opus 27

Sensory Integration Illusion What you see influences what you hear McGurk impact Music naming http://www.youtube.com/watch?v=aFPtc8BVdJk

Gap Transfer dream A ricochet is frequently seen in the skimming tones http://www.kyushu-id.ac.jp/~ynhome/ENG/Demo/second/01.html Figure and clasp by Yoshitaka Nakajima

More on Gap-Transfer Illusion Often saw a similar Figure and clasp by Yoshitaka Nakajima

Split off impact The audience commonly sees one long tone, which rises and after that falls, and a short tone in the middle.   Figure and clasp by Yoshitaka Nakajima

More on the split off impact Figure and clasp by Yoshitaka Nakajima

More on split off impact Figure and clasp by Yoshitaka Nakajima

Streaming When do two rotating pitches seem like one dashing sound? ASA demo 19 Yodeling - evident movement in music Cook demo 33

quick slow Phantom Melodies From: http://listverse.com/2008/02/29/best 10-mind boggling sound-hallucinations/Christian Sinding's Frühlingsrauschen ("Rustle of Spring") unique recording: www.classicalmidi.co.uk/Slow recording civility of Karle-Philip Zamor)

Fast beat even in nearness of timbre varieties can prompt to hearing gatherings of sounds as single sounds "perceptual groupings"

Overlapping piano tones forward in reverse covers aren't generally listened

Illusory Continuity Speech is heard and comprehended in spite of clamor intrusions Figure and clasp by Yoshitaka Nakajima

Temporal Induction of Speech Interrupted by hack Interrupted by quiet From New Scientist. Music exceptional: Five awesome sound-related dreams 24 February 2008 by Michael Marshall

Pitch relies on upon halfway frequencies Butler case 3.5b Second of each match has partials 10% sharp. Seen pitch change relies on upon recurrence

Timbre relies on upon recurrence First tone has partials 1,2,3,4,5 Second tone has partials 1,3,5,7,9 Difference in timbre relies on upon recurrence of key Butler illustration 3.5a

A Discontinuous Change in Time Perception Caused by Time-Shrinking When the contrast between the first and the second term is up to around 100 ms (the 6th example), 'time-contracting', i.e., the second span is under-assessed

Timing and music Scott Joplin's The Peacherine MIDI from http://www.geocities.com/BourbonStreet/2783/sjmidi.htm Played by Dick Hyman Joplin sounds really great in MIDI - it was played on piano rolls

Quickening Beat Tempo seems, by all accounts, to be stimulating From: http://listverse.com/2008/02/29/best 10-unimaginable sound-dreams/

Combination tones! Listening illustration 4.5 Butler. Just 440 and 660 Hz played, however now and again can hear a 220 Hz flag (contrast) notwithstanding the other two. Bring down tone is produced by your ear/mind

Stereo Auditory fantasies Here I have concentrated on hallucinations that don't included stereo - however Diana Deutsch has a progression of extremely intriguing stereo dreams. Substituting pitches between ears regularly saw as ceaseless examples

Chromatic hallucination

Deutsch's Tritone oddity A tritone is two pitches ½ an octave separated (e.g. C to F#) One sets of tritones is trailed by another. The audience is made a request to judge whether the tones rise or plummet Musicians regularly deviate

Tritone mystery Transposition frequently causes one audience to change his/her psyche despite the fact that music when transposed is seen as the same Most audience members have a favored introduction for the contribute circle saw tritones - a type of outright pitch that each audience has Listeners from various societies can differ on their pitch introduction

Zwicker Tone Noise with a hole. A tone can be heard after the clamor. The hole ought to be about the measure of the basic band. I attempted this however couldn't get the deception to work. Maybe should be done in a calm domain.

Expectations The uncertain driving tone that finishes one of the developments of Iphigenia in Brooklyn (PDQ). Searching for the clasp! Ghost Melody, attempt Novacek, Perpetuum Mobile, Violin + Piano course of action