Unverified50% confidenceTradeoffExact time
实时音频和弦检测的难点在于FFT窗口长度的权衡：窗口越长频率分辨率越高但时间延迟越大，窗口越短则频率分辨率不足以区分相邻音高
1
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50%
Confidence
Long-term
Relevance
8/25/2026
First Seen
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UnverifiedAudio visualization is typically based on Fast Fourier Transform (FFT) for frequency-domain analysis of audio signals.77% similarUnverifiedFFT converts a time-domain audio signal into a frequency-domain representation with a computational complexity of O(n log n), which is superior to the O(n²) of the naive DFT69% similar
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