Using weekly music charts data in 10 countries over the period 1990–2015, we analyze whether digitization leads to a trend of homogenization of music content or conversely to a greater acoustic disparity. We split the digitization era in four periods that correspond to four new emblematic distribution models (Napster, iTunes, YouTube, Spotify). Our main result is that while acoustic diversity decreased during the iTunes and the YouTube periods, the period that begins with the introduction of audio streaming services, such as Spotify, represents a turning point and is marked by a significant increase in acoustic diversity.

中文翻译：

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数字化是否会导致文化内容的同质化？

使用 1990 年至 2015 年期间 10 个国家/地区的每周音乐排行榜数据，我们分析了数字化是导致音乐内容同质化的趋势还是相反导致更大的声学差异。我们将数字化时代分为四个时期，对应于四种新的标志性分销模式（Napster、iTunes、YouTube、Spotify）。我们的主要结果是，虽然在 iTunes 和 YouTube 时期声学多样性下降，但从引入音频流服务（例如 Spotify）开始的时期代表了一个转折点，并以声学多样性显着增加为标志。