Perception of Polyphony With Cochlear Implants for 2 and 3 Simultaneous Pitches

Penninger, Richard T.; Kludt, E; Limb, Charles J.; Leman, Marc; Dhooge, Ingeborg; Buechner, Andreas

doi:10.1097/mao.0000000000000255

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…Thus, the data set with SSD-CI listeners provides direct comparison of pleasantness rating for very different peripheral representations within the same participant. The generally low CI-only ratings are consistent with previous studies that show difficulties in CI users’ perception of polyphonic music (e.g., Donnelly et al, 2009; Galvin et al, 2009b, 2012; Penninger et al, 2013, 2014; Crew et al, 2015; Chari et al, 2019). The present pattern of results with CI-only listening is also generally consistent with Knobloch et al (2018), who found that adult post-lingually deaf CI users rated major chords as sounding more pleasant than minor augmented, suspended, and diminished chords.…”

Section: Discussionsupporting

confidence: 90%

“…Distorted perception of melodic (i.e., sequential) intervals contributes to CI users’ poor melody perception, especially when rhythm cues are unavailable (e.g., Gfeller et al, 2002, 2007; Kong et al, 2004; Vongpaisal et al, 2006). With polyphonic music (multiple instruments or voices), CI users’ melodic pitch perception worsens further (e.g., Galvin et al, 2009b, 2012; Penninger et al, 2013, 2014; Crew et al, 2015). While perception of melodic intervals has been extensively studied, relatively little is known about CI users’ perception of harmonic (i.e., simultaneous) intervals.…”

Section: Introductionmentioning

confidence: 99%

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Pleasantness Ratings for Harmonic Intervals With Acoustic and Electric Hearing in Unilaterally Deaf Cochlear Implant Patients

et al. 2019

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BackgroundHarmony is an important part of tonal music that conveys context, form and emotion. Two notes sounded simultaneously form a harmonic interval. In normal-hearing (NH) listeners, some harmonic intervals (e.g., minor 2nd, tritone, major 7th) typically sound more dissonant than others (e.g., octave, major 3rd, 4th). Because of the limited spectro-temporal resolution afforded by cochlear implants (CIs), music perception is generally poor. However, CI users may still be sensitive to relative dissonance across intervals. In this study, dissonance ratings for harmonic intervals were measured in 11 unilaterally deaf CI patients, in whom ratings from the CI could be compared to those from the normal ear.MethodsStimuli consisted of pairs of equal amplitude MIDI piano tones. Intervals spanned a range of two octaves relative to two root notes (F3 or C4). Dissonance was assessed in terms of subjective pleasantness ratings for intervals presented to the NH ear alone, the CI ear alone, and both ears together (NH + CI). Ratings were collected for both root notes for within- and across-octave intervals (1–12 and 13–24 semitones). Participants rated the pleasantness of each interval by clicking on a line anchored with “least pleasant” and “most pleasant.” A follow-up experiment repeated the task with a smaller stimulus set.ResultsWith NH-only listening, within-octave intervals minor 2nd, major 2nd, and major 7th were rated least pleasant; major 3rd, 5th, and octave were rated most pleasant. Across-octave counterparts were similarly rated. With CI-only listening, ratings were consistently lower and showed a reduced range. Mean ratings were highly correlated between NH-only and CI-only listening (r = 0.845, p < 0.001). Ratings were similar between NH-only and NH + CI listening, with no significant binaural enhancement/interference. The follow-up tests showed that ratings were reliable for the least and most pleasant intervals.DiscussionAlthough pleasantness ratings were less differentiated for the CI ear than the NH ear, there were similarities between the two listening modes. Given the lack of spectro-temporal detail needed for harmonicity-based distinctions, temporal envelope interactions (within and across channels) associated with a perception of roughness may contribute to dissonance perception for harmonic intervals with CI-only listening.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Pleasantness Ratings for Harmonic Intervals With Acoustic and Electric Hearing in Unilaterally Deaf Cochlear Implant Patients

et al. 2019

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“…For the polyphonic pitch detection task, 15,16 the subjects were presented with 10 sequences of a two-note partial chord ("dyad") and a three-note chord ("triad") in random order (e.g., dyad followed by a triad or triad followed by a dyad) and asked to identify which stimulus contained three notes. The dyad was a musical interval within the range of C4 (261 Hz) to C5 (523 Hz) in which the first note was played simultaneously with a second note, spaced anywhere from 1 to 12 semitones above the first note.…”

Section: Polyphonic Pitch Detectionmentioning

confidence: 99%

Music Perception in Bone‐Anchored Hearing Implant Users

Jiam,

Formeister,

Chari

et al. 2023

The Laryngoscope

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ObjectiveMusic is a highly complex acoustic stimulus in both spectral and temporal contents. Accurate representation and delivery of high‐fidelity information are essential for music perception. However, it is unclear how well bone‐anchored hearing implants (BAHIs) transmit music. The study objective is to establish music perception performance baselines for BAHI users and normal hearing (NH) listeners and compare outcomes between the cohorts.MethodsA case‐controlled, cross‐sectional study was conducted among 18 BAHI users and 11 NH controls. Music perception was assessed via performance on seven major musical element tasks: pitch discrimination, melodic contour identification, rhythmic clocking, basic tempo discrimination, timbre identification, polyphonic pitch detection, and harmonic chord discrimination.ResultsBAHI users performed comparably well on all music perception tasks with their device compared with the unilateral condition with their better‐hearing ear. BAHI performance was not statistically significantly different from NH listeners' performance. BAHI users performed just as well, if not better than NH listeners when using their control contralateral ear; there was no significant difference between the two groups except for the rhythmic timing (BAHI non‐implanted ear 69% [95% CI: 62%–75%], NH 56% [95% CI: 49%–63%], p = 0.02), and basic tempo tasks (BAHI non‐implanted ear 80% [95% CI: 65%–95%]; NH 75% [95% CI: 68%–82%, p = 0.03]).ConclusionsThis study represents the first comprehensive study of basic music perception performance in BAHI users. Our results demonstrate that BAHI users perform as well with their implanted ear as with their contralateral better‐hearing ear and NH controls in the major elements of music perception.Level of EvidenceIII Laryngoscope, 2023

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“…Er aktiviert entgegen dem ersten Oberton eine Einzelelektrode, die ausreichend weit weg von der Einzelelektrode entfernt liegt, die die Grundfrequenz überträgt, so dass Kanalinteraktionen deutlich reduziert werden. So verbesserte sich die getrennte Wahrnehmung zweier Töne bei Penninger et al mit zunehmendem Abstand zwischen den dazu aktivierten Einzelelektroden, da die Überlappung der stimulierten Nervenenden reduziert wurde [41].…”

Section: Introductionunclassified

Einfluss von Ober- und Untertönen auf die Melodieerkennung mit einem Cochlea-Implantat bei SSD

Schulz,

Gauer,

Martin

et al. 2023

Laryngorhinootologie

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ZusammenfassungViele Träger*innen eines Cochlea-Implantats (CI) können Tonhöhen und Melodien schlecht erkennen, da die Tonhöhenübertragung unscharf und verschoben ist. Diese Studie untersucht, ob postlingual ertaubte erwachsene CI-Träger*innen Melodien besser erkennen, wenn Obertöne entfernt oder Untertöne hinzugefügt werden.Eingeschlossen wurden 15 einseitig postlingual ertaubte CI-Träger*innen (Single Sided Deafness, SSD) im Alter von 22–73 Jahren (MW 52, SD 11,6) mit einer CI-Hörerfahrung zwischen 3 und 75 Monaten (MW 33, SD 21,0) mit verschiedenen MED-EL-Modellen. Drei kurze Klaviermelodien wurden ihnen zunächst auf dem normalhörenden Ohr und dann in veränderten Ober- oder Untertonvarianten und der Originalvariante auf dem CI-Ohr präsentiert. Die Varianten sollten als eine der 3 Originalmelodien identifiziert werden. Zusätzlich wurden die musikalischen Fähigkeiten und Erfahrungen durch den Münchner Musikfragebogen und den MiniPROMS-Musiktest erfasst.Die Melodieerkennung gelang den CI-Träger*innen am besten in der Grundfrequenzvariante. Die Obertonvariante mit dem dritten Oberton ergab eine gleichwertige Melodieerkennung wie die Originalvariante aus allen Obertönen (p=1). Indes wurde die Untertonvariante mit dem ersten Unterton signifikant schlechter als die Grundfrequenzvariante erkannt (p=0,032). Ferner zeigte sich keine Korrelation zwischen der Musikerfahrung oder den musikalischen Fähigkeiten und der Anzahl an erkannten Melodien (p>0,1).Da die Obertonreduktion die Melodieerkennung nicht verschlechtert und in anderen Arbeiten den Musikgenuss sogar verbesserte, sollte die Obertonreduktion in künftigen Musikverarbeitungsprogrammen für das CI berücksichtigt werden. Dies könnte zusätzlich den Energieverbrauch des CI reduzieren.

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Perception of Polyphony With Cochlear Implants for 2 and 3 Simultaneous Pitches

Abstract: Subjects are able to identify complex polyphonic stimuli based on the number of active electrodes. The additional polyphonic rate pitch cue improves performance in some conditions.

Cited by 6 publications

References 16 publications

Pleasantness Ratings for Harmonic Intervals With Acoustic and Electric Hearing in Unilaterally Deaf Cochlear Implant Patients

Pleasantness Ratings for Harmonic Intervals With Acoustic and Electric Hearing in Unilaterally Deaf Cochlear Implant Patients

Music Perception in Bone‐Anchored Hearing Implant Users

Einfluss von Ober- und Untertönen auf die Melodieerkennung mit einem Cochlea-Implantat bei SSD

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