Abstract
In this paper an experimental method to quantify perceptual differences between acoustic stimuli is presented. The experiments are implemented as a signal-in-noise task, where two sounds are to be discriminated. By adjusting the signal-to-noise ratio (SNR) the difficulty of the sound discrimination is manipulated. If two sounds are very similar already, a low level of added noise (high SNR) makes the discrimination task difficult. For more dissimilar sounds, a higher amount of noise (lower SNR) is needed to affect discriminability. In other words, a strong correlation between SNR and similarity is expected. The experimental noises are generated to have similar spectro-temporal properties to those of the test stimuli. As a study case, the suggested method was used to evaluate recordings of one note played on seven Viennese pianos using (1) non-reverberant sounds (as recorded) and (2) reverberant sounds, where reverberation was added by means of digital convolution. The experimental results of the suggested method were compared with a similarity experiment using the method of triadic comparisons. The results of both methods were significantly correlated with each other.
| Language | English |
|---|---|
| Pages | 1024-1035 |
| Number of pages | 12 |
| Journal | Journal of the Acoustical Society of America |
| Volume | 146 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Aug 2019 |
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Perceptual similarity between piano notes : experimental method applicable to reverberant and non-reverberant sounds. / Osses Vecchi, Alejandro (Corresponding author); Kohlrausch, Armin G.; Chaigne, Antoine.
In: Journal of the Acoustical Society of America, Vol. 146, No. 2, 01.08.2019, p. 1024-1035.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Perceptual similarity between piano notes
T2 - Journal of the Acoustical Society of America
AU - Osses Vecchi,Alejandro
AU - Kohlrausch,Armin G.
AU - Chaigne,Antoine
PY - 2019/8/1
Y1 - 2019/8/1
N2 - In this paper an experimental method to quantify perceptual differences between acoustic stimuli is presented. The experiments are implemented as a signal-in-noise task, where two sounds are to be discriminated. By adjusting the signal-to-noise ratio (SNR) the difficulty of the sound discrimination is manipulated. If two sounds are very similar already, a low level of added noise (high SNR) makes the discrimination task difficult. For more dissimilar sounds, a higher amount of noise (lower SNR) is needed to affect discriminability. In other words, a strong correlation between SNR and similarity is expected. The experimental noises are generated to have similar spectro-temporal properties to those of the test stimuli. As a study case, the suggested method was used to evaluate recordings of one note played on seven Viennese pianos using (1) non-reverberant sounds (as recorded) and (2) reverberant sounds, where reverberation was added by means of digital convolution. The experimental results of the suggested method were compared with a similarity experiment using the method of triadic comparisons. The results of both methods were significantly correlated with each other.
AB - In this paper an experimental method to quantify perceptual differences between acoustic stimuli is presented. The experiments are implemented as a signal-in-noise task, where two sounds are to be discriminated. By adjusting the signal-to-noise ratio (SNR) the difficulty of the sound discrimination is manipulated. If two sounds are very similar already, a low level of added noise (high SNR) makes the discrimination task difficult. For more dissimilar sounds, a higher amount of noise (lower SNR) is needed to affect discriminability. In other words, a strong correlation between SNR and similarity is expected. The experimental noises are generated to have similar spectro-temporal properties to those of the test stimuli. As a study case, the suggested method was used to evaluate recordings of one note played on seven Viennese pianos using (1) non-reverberant sounds (as recorded) and (2) reverberant sounds, where reverberation was added by means of digital convolution. The experimental results of the suggested method were compared with a similarity experiment using the method of triadic comparisons. The results of both methods were significantly correlated with each other.
UR - http://www.scopus.com/inward/record.url?scp=85070546066&partnerID=8YFLogxK
U2 - 10.1121/1.5121311
DO - 10.1121/1.5121311
M3 - Article
VL - 146
SP - 1024
EP - 1035
JO - Journal of the Acoustical Society of America
JF - Journal of the Acoustical Society of America
SN - 0001-4966
IS - 2
ER -