Sharpness and amplitude envelopes of broadband noise

Kazuo Ueda, Masato Akagi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This paper discusses how amplitude envelope shapes, sound-pressure level, and duration of broadband noise affect sharpness and brightness. In the first experiment, sharpness, brightness, and similarity were judged for paired stimuli by 13 subjects. The stimuli consisted of broadband noise with different types of amplitude envelopes, sound-pressure levels, and duration. Experimental results were analyzed with a multidimensional scaling technique. In addition, the second experiment measuring the point of subjective equality (PSE) of sharpness was carried out for four subjects. The results of these two experiments showed large individual differences in sharpness judgment, difficulty in brightness judgment for the stimuli used in the experiments, and influence of the amplitude envelope shapes on sharpness. The individual differences observed in sharpness judgment were explained by the differences between weights given to two psychological dimensions: loudness and subjective duration. This study forms a basis for understanding sharpness of nonsteady sounds.

Original languageEnglish
Pages (from-to)814-819
Number of pages6
JournalJournal of the Acoustical Society of America
Issue number2
Publication statusPublished - Feb 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Acoustics and Ultrasonics


Dive into the research topics of 'Sharpness and amplitude envelopes of broadband noise'. Together they form a unique fingerprint.

Cite this