2025_programme: An Algorithm for Reproducing Small Yellow Croaker (Larimichthys polyactis) Sounds Based on Wavelet Synthesis

• Day: June 17, Tuesday
    Location / Time: A. TERPSIHORI at 10:10 - 10:30
• Last minutes changes: -
• Session: 08a. Bioacoustics and Soundscape
  Organiser(s): Jennifer Miksis-Olds, Giacomo Giorli
  Chairperson(s): Jennifer Miksis-Olds, Giacomo Giorli
• Lecture: An Algorithm for Reproducing Small Yellow Croaker (Larimichthys polyactis) Sounds Based on Wavelet Synthesis
  Paper ID: 2242
  Author(s): Beomsik Kim, Jongwook Choi, Sunhyo Kim, Hansoo Kim, Sungho Cho, Donhyug Kang, Jee Woong Choi
  Presenter: Beomsik Kim
  Abstract: With the increasing utilization of underwater technologies across various fields, the demand for underwater acoustic communications has been rising in recent years. There are cases where long-range communication is required, cases where high data rate transmission is needed, and cases involving the development of secure communication technologies. Various communication technologies are being developed to meet these diverse needs. However, ensuring reliable underwater communication remains a challenge due to limited bandwidth and propagation loss. Recently, studies have proposed the application of marine life-mimicking sounds as a secure underwater communication technique. However, previous studies have primarily focused on marine mammal sounds, such as whale calls, and few studies have been conducted on fish sounds. \n In this study, we attempt to mimic the sound of the small yellow croaker(Larimichthys polyactis). The sounds of small yellow croakers were recorded at an aquaculture farm located on the southern coast of Korea. Their sounds exhibited prominent energy within the frequency range of approximately 500–700 Hz. They produced short pulses with durations ranging from a few to several milliseconds, which repeatedly formed pulse trains occurring from several to dozens of times, with intervals of approximately 20 to 120 ms. The small yellow croaker pulses were reproduced using wavelet synthesis in the time domain, and these pulses were repeated at the measured intervals. The similarity between the measured and mimicked sounds was evaluated using the Pearson correlation coefficient. Finally, to verify the applicability of the proposed reproduction algorithm to underwater communication, a performance simulation of the Pulse Position Modulation(PPM) technique using small yellow croaker pulses was conducted, and the results will be discussed in this talk.\n This work was supported by the Korea Research Institute for defense Technology planning and advancement(KRIT) grant funded by the Korean Government(DAPA) in 2025(No. KRIT-CT-22-056).
• Corresponding author: Mr Beomsik Kim
  Affiliation: Hanyang University ERICA
  Country: Korea, Republic of