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add: note
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m1m0zzz committed Nov 6, 2023
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## 対数fftに関するメモ

- 描画処理内で対数表示することは処理速度の関係上不可能

`canvasWidth * canvasHeight * (fftSize / 2)`

例)1920 * 1080 * 8192 = 10^9 ( 10^8 = 1s)

=> 配列に保存、描画のためのindexを配列に保持

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