Aligning Semi-Improvised Music Audio with Its Lead Sheet
Aligning Semi-Improvised Music Audio with Its Lead Sheet
复制标题
将半即兴音乐音频与其主谱对齐
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Bryan Pardo
中科院分区：
文献类型：
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作者：
Z. Duan;Bryan Pardo
现有的音频分数对齐方法假设音频性能忠实于完全标注的音频分数。对于半即兴音乐（例如爵士乐），这个假设被严重违反。在本文中，我们解决了半即兴音乐音频与铅片对齐的问题。我们的方法不需要预先对要对齐的铅片进行性能培训。我们开始分析的问题，并建议代表铅表作为一个结构信息文件的一个文件。然后，我们提出了一个基于动态编程的系统，以调整的音频性能的色度图表示和音频分数。提出了解决色度图缩放、键转换和结构变化（例如，表演者意外地重复一个部分）问题的技术。我们测试我们的系统上3爵士乐铅表。对于每张表，我们将一组钢琴独奏表演和一组具有不同乐器和风格的全波段商业录音对齐。结果表明，我们的系统在一些高度即兴的音乐上取得了令人满意的结果。
Existing audio-score alignment methods assume that the audio performance is faithful to a fully-notated MIDI score. For semi-improvised music (e.g. jazz), this assumption is strongly violated. In this paper, we address the problem of aligning semi-improvised music audio with a lead sheet. Ourapproachdoesnotrequirepriortrainingonperformances of the lead sheet to be aligned. We start by analyzing the problem and propose to represent the lead sheet as a MIDI file together with a structural information file. Then we propose a dynamic-programming-based system to align the chromagram representations of the audio performance and the MIDI score. Techniques are proposed to address the chromagramscaling, keytranspositionandstructuralchange (e.g. a performer unexpectedly repeats a section) problems. We test our system on 3 jazz lead sheets. For each sheet we align a set of solo piano performances and a set of fullband commercial recordings with different instrumentation and styles. Results show that our system achieves promising results on some highly improvised music.