Sonagram

Japanese: sonagram
Sonagram

...An acoustic analysis device developed during World War II, it is useful for analyzing sounds whose components change one after another in a short period of time, such as speech sounds (phonetics). It is officially called a sound spectrograph, or simply a spectrograph, and the diagram it produces is called a spectrogram, but it is often called the product name, sonagraph, and the diagram is called a sonagram. Figure 1 shows a sonagram of the vowel [a].

*Some of the terminology that mentions "sonagram" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…第2次世界大戦中に開発された音響分析器械で,発話における言語音声(音声学)のように,短い時間に次々にその構成要素が変わっていく音を分析するのには便利な装置である。正式には音声スペクトログラフsound spectrograph,また通称単にスペクトログラフとも称し,これによって得られる図形をスペクトログラムspectrogramというが,しばしばその商品名であるソナグラフの名で呼ばれ,その図示をソナグラムsonagramという。 図1は母音[a]のソナグラムを示している。…

※「sonagram」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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