Abstract
Preliminary estimates to determine the relative amplitude relationship necessary for one spectral pattern to influence another in terms of the resulting periodicity pitch were made. The threshold of discrimination (DL) for a change in periodicity pitch was estimated for complex tones whereby either the even- or odd-order harmonic components were simultaneously decremented in amplitude. An adaptive up-down procedure employing a 2AFC task with two standards was utilized with minimally trained subjects. Stimuli were digitally constructed by summing sine waves spaced at 100-Hz intervals. Three stimulus parameters were evaluated: (1) total number of components (5 or 6); (2) position of varied components (even or odd order); and (3) frequency range (1400–1900 Hz or 2000–2500 Hz). Difference limens obtained ranged from −8.2 to −23.1 dB relative to the fixed component amplitude with an overall mean of −13 dB. The implications of these findings will be discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
