{"id":{"repo_id":"nps","oai_identifier":"oai:calhoun.nps.edu:10945/9454"},"canonical_url":"https://search.dev.ndltd.org/etd/nps/oai:calhoun.nps.edu:10945/9454","repository":{"repo_id":"nps","name":"Naval Postgraduate School","base_url":"https://calhoun.nps.edu/server/oai/request"},"display":{"title":"Calculations of the effects of peak clipping on speech-like signals","abstract":"Peak clipping is a well known method of increasing the average power of a peak power limited voice communication transmitter. Although the clipping process introduces distortion, articulation tests have shown that clipped speech remains highly intelligible. Using idealizations of vowel sounds based on the mechanism of speech production, calculations were made of the spectra resulting from clipping these speech-like signals. The results indicate a high degree of similarity between the spectra before and after clipping. The power gained by clipping at audio frequency and at narrowband was calculated and compared with previously published data. Repeaking due to component rejection was investigated for clipping at audio and narrowband. Calculations of the effect of varying the phase characteristic of the signals before clipping indicate that such variation may improve the intelligibility of clipped speech.","abstract_html":"Peak clipping is a well known method of increasing the average power of a peak power limited voice communication transmitter. Although the clipping process introduces distortion, articulation tests have shown that clipped speech remains highly intelligible. Using idealizations of vowel sounds based on the mechanism of speech production, calculations were made of the spectra resulting from clipping these speech-like signals. The results indicate a high degree of similarity between the spectra before and after clipping. The power gained by clipping at audio frequency and at narrowband was calculated and compared with previously published data. Repeaking due to component rejection was investigated for clipping at audio and narrowband. Calculations of the effect of varying the phase characteristic of the signals before clipping indicate that such variation may improve the intelligibility of clipped speech.","abstract_has_math":false,"creators":["Dietrich, William Varner"],"institution":"Monterey, California. U.S. Naval Postgraduate School","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Department of Electrical Engineering","school":null,"contributors":[],"advisors":["Ewing, Gerald D."],"committee_chairs":[],"committee_members":[],"year":1966,"date_issued":"1966-12","date_published":"1966-12","updated_at":"2026-07-27T20:24:23Z","subjects":[],"languages":["en_US"],"rights":["This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. 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Using idealizations of vowel sounds based on the mechanism of speech production, calculations were made of the spectra resulting from clipping these speech-like signals. The results indicate a high degree of similarity between the spectra before and after clipping. The power gained by clipping at audio frequency and at narrowband was calculated and compared with previously published data. Repeaking due to component rejection was investigated for clipping at audio and narrowband. Calculations of the effect of varying the phase characteristic of the signals before clipping indicate that such variation may improve the intelligibility of clipped speech."]},{"key":"dc:title","label":"Title","values":["Calculations of the effects of peak clipping on speech-like signals"]}]}],"canonical_facts":{"dc:contributor.advisor":["Ewing, Gerald D."],"dc:contributor.department":["Department of Electrical Engineering"],"dc:creator":["Dietrich, William Varner"],"dc:date":["December 1966"],"dc:date.accessioned":["2012-08-09T19:31:42Z"],"dc:date.available":["2012-08-09T19:31:42Z"],"dc:date.issued":["1966-12"],"dc:description.abstract":["Peak clipping is a well known method of increasing the average power of a peak power limited voice communication transmitter. Although the clipping process introduces distortion, articulation tests have shown that clipped speech remains highly intelligible. Using idealizations of vowel sounds based on the mechanism of speech production, calculations were made of the spectra resulting from clipping these speech-like signals. The results indicate a high degree of similarity between the spectra before and after clipping. The power gained by clipping at audio frequency and at narrowband was calculated and compared with previously published data. Repeaking due to component rejection was investigated for clipping at audio and narrowband. Calculations of the effect of varying the phase characteristic of the signals before clipping indicate that such variation may improve the intelligibility of clipped speech."],"dc:identifier.uri":["https://hdl.handle.net/10945/9454"],"dc:language.iso":["en_US"],"dc:publisher":["Monterey, California. U.S. Naval Postgraduate School"],"dc:rights":["This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States."],"dc:title":["Calculations of the effects of peak clipping on speech-like signals"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T20:24:23Z"}