A new method for expressing volume levels in digital audio. And transitions of volume levels by age with 'Kimi wa tennenshoku' as the subject

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  • デジタルオーディオにおける音量レベルの新しい表現方法と、『君は天然色』を題材にした年代ごとの音量レベルの変遷
  • デジタルオーディオ ニ オケル オンリョウ レベル ノ アタラシイ ヒョウゲン ホウホウ ト 、 『 キミ ワ テンネンショク 』 オ ダイザイ ニ シタ ネンダイ ゴト ノ オンリョウ レベル ノ ヘンセン

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Until now, the volume level of digital music works had to be inferred based on the waveform displayed by DAWs. However, the appearance changes depending on the scale of the waveform display. Here, I propose a new analysis / expression method for audio data : graph of the frequency of sound loudness. This makes it easier to see the volume levels of music. In addition, by using this expression method and analyzing the same sound source mastered in each era, I consider the volume levels of each era after the 1980s when the CD was released.

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