Department of ECE, Indian Institute of Science, Bangalore, India.
Idiap Research Institute, Martigny 1920, Switzerland.
J Acoust Soc Am. 2019 Jan;145(1):597. doi: 10.1121/1.5087277.
Predominant melody offers a complete representation of melodic contours of heterophonic Indian Art Music (IAM). A compact representation of melodic contours while preserving raga characteristics is proposed. Such representations have applications in music transcription, analysis, and synthesis. Contours are quantized on a pitch-time grid after normalizing critical points with tonic and rhythmic pulse period estimates. Non-uniform quantization intervals are selected from pitch and time scales prevalent in IAM, while accommodating pitch and inter-note-interval variations on pitch-time grid. An evaluation of quantized-reconstructed contours through listening tests by trained musicians shows raga preserving capabilities of the proposed approach in spite of alterations in contour shapes.
主导旋律提供了印地语复调音乐（IAM）旋律轮廓的完整表示。本文提出了一种在保留拉格特征的同时对旋律轮廓进行紧凑表示的方法。这种表示方法在音乐转录、分析和合成中有应用。在使用音调和节奏脉冲周期的估计对关键点进行归一化后，将轮廓量化到音高-时间网格上。在音高和时间尺度上选择非均匀量化间隔，同时在音高-时间网格上适应音高和音间间隔的变化。通过受过训练的音乐家进行的听力测试对量化重构轮廓进行评估，结果表明，尽管轮廓形状发生了变化，但所提出的方法仍然具有保留拉格的能力。
