用于基频分析的分尺度线性预测。

IF 1.2 Q3 ACOUSTICS JASA express letters Pub Date : 2024-12-01 DOI:10.1121/10.0034516
R Gowriprasad, T Anand, Rangarajan Aravind, Hema A Murthy
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引用次数: 0

摘要

理解音频信号的基本频率和谐波内容对于音乐分析中的许多应用至关重要,包括音乐转录,音频合成和类型识别。本研究提出了一种结合线性预测(Linear Prediction, LP)分析和分音阶的信号处理方法,以准确表征音频信号的音高和谐波结构。在分音阶的LP频谱上的音高跟踪提供了更准确和可靠的音高估计,特别是在存在噪声或重叠谐波的情况下。分音阶将不同音符的谐波排列得更紧密,从而更容易辨别正确的音高。
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Linear prediction on Cent scale for fundamental frequency analysis.

Understanding the fundamental frequency and harmonic content of audio signals is crucial for many applications in music analysis, including music transcription, audio synthesis, and genre identification. This study formulates a signal processing approach combining Linear Prediction (LP) analysis and the Cent scale to accurately characterize the pitch and harmonic structure of the audio signals. Pitch tracking on the LP spectrum in the Cent scale provides more accurate and reliable pitch estimation, especially in the presence of noise or overlapping harmonics. The Cent scale aligns the harmonics of different notes more closely, making it easier to discern the correct pitch.

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