{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T03:15:25Z","timestamp":1761621325001,"version":"build-2065373602"},"reference-count":51,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2017,6,17]],"date-time":"2017-06-17T00:00:00Z","timestamp":1497657600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>This work proposes a new and non-blind steganographic scheme for synthesized pitches. Synthesized music is popularly used to demonstrate early versions of compositions conveniently and at low-cost. They can also be utilized to pass secrets or obtain digital rights. The method consists of two procedures, of which the first is the realistic simulation of synthesized pitches using a computer and the second is the hiding of secrets during the generated simulated pitches. The first part of this paper reviews attempts to discover the fundamental patterns of synthesized pitches and to develop a strategy for generating approximate pitches using a computer. The component frequencies are used to generate a pitch in which to hide secrets. Legal receivers receive the referenced composition and frequencies, enabling them to generate the synthesized pitches according to the main frequencies of the referenced composition. Finally, the generated and received pitches are compared to identify the secret bits. As more frequencies are used to hide secret bits, more secret bits can be embedded in the synthesized pitches. The use of more frequencies makes synthesized pitches more realistic compared to real ones. The performance of the proposed method is also compared with that of competing methods and under common attacks.<\/jats:p>","DOI":"10.3390\/sym9060092","type":"journal-article","created":{"date-parts":[[2017,6,19]],"date-time":"2017-06-19T10:29:26Z","timestamp":1497868166000},"page":"92","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["High-Capacity Data-Hiding Scheme on Synthesized Pitches Using Amplitude Enhancement\u2014A New Vision of Non-Blind Audio Steganography"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6271-5050","authenticated-orcid":false,"given":"Hung-Jr.","family":"Shiu","sequence":"first","affiliation":[{"name":"DCNS Lab, Graduate Institute of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bor-Shing","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Information Engineering, National Taipei University, New Taipei City 23741, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0498-3190","authenticated-orcid":false,"given":"Chia-Wei","family":"Cheng","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Information Engineering, National Chinan University, Nantou County 54561, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3905-8915","authenticated-orcid":false,"given":"Chien-Hung","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Information Engineering, National Formosa University, Yunlin County 63201, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chin-Laung","family":"Lei","sequence":"additional","affiliation":[{"name":"DCNS Lab, Graduate Institute of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,6,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Katzenbeisser, S., and Petitcolas, F.A.P. 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