台灣畜產種原鳴叫聲資料庫之建立

李世昌 賴永裕 黃鈺嘉 張秀鑾

行政院農業委員會畜產試驗所

本研究之目的為收集台灣畜產種原各種不同生活行為聲音檔,建立台灣畜產種原聲音資料庫,並比較物種間鳴叫聲音的崎異度。第一期作業共收錄雞、鴨、牛、羊、馬與豬的不同成長期鳴叫聲音,製成WAV格式純聲音檔,並進行頻譜分析,及提供網際網路線上下載(http://www.angrin.tlri.gov.tw/)。頻譜分析結果顯示,畜產種原鳴叫聲音具有豐富的多樣性,家禽的間歇短持續性音波較家畜出現頻繁,幼禽畜主基音音頻(如北京仔鴨3456Hz)較成禽畜(如北京成鴨1257Hz)高,而相近物種間亦存在極大的差異,如水牛常發出短而高的鳴叫聲但乳牛則較常發出低而持續的長音。畜產動物鳴叫音的收錄除了可充實國家多元化自然科學教材外,並可與其它設備結合(如錄音棒、發情偵測器、榨乳機械與仔畜人工哺乳器等),協助畜群生產管理器械研發與畜產噪音管控研究。

關鍵語:聲音資料庫、家畜禽、音譜分析

 

CONSTRUCTION AN INTEGRATED SOUND DATABASE FOR
LIVESTOCKS IN TAIWAN

S. C. Lee, Y. Y. Lai, Y. C. Huang and H. L. Chang

Taiwan Livestock Research Institute, Council of Agriculture

The objective of this study is to collect sound resources of farm animals to construct a sound database of Taiwan livestock and to compare their diversities. In phase I, "normal" sounds in different growth stages were collected for chickens, ducks, cows, goats, horses and pigs, which are recorded in digital format WAV files. A web page (http://www.angrin.tlri.gov.tw/) was designed for download or real-time playing the sound files. From sound spectrum analysis, high diversity existed in livestock of Taiwan. Poultry play short time sound with blank period inserted more often than other stocks. Major base tone of livestock is higher in early growth stage than mature stage (e.g., 3456Hz vs. 1257Hz sampled for duckling and fully developed Peking ducks). Significant difference between sound spectrum patterns was found among animals with phenotypes alike, e.g., buffalo often plays a short and high sound, but dairy cow play a long and low sound instead. The collected livestock sounds in database can be provided as one of good resources for natural science education of Taiwan. The other potential of applications are on improving machines and facilities for livestock management and noise control in livestock production.

Key Words: Sound database, Livestock, Spectrum analysis.