Effect on long-term average spectrum of pop singers' vocal warm-up with vocal function exercises
Effect on long-term average spectrum of pop singers' vocal warm-up with vocal function exercises
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DOI：
10.3109/17549507.2012.702283
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发表时间：
2013-04-01
影响因子：
1.8
通讯作者：
Mayerhoff, Ross
中科院分区：
文献类型：
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作者：
Guzman, Marco;Angulo, Mabel;Mayerhoff, Ross
本病例对照研究旨在探讨正常歌唱者在进行发声功能训练（VFE）后即刻与传统的发声热身训练相比，频谱斜率下降是否有任何变化。38名嗓音感觉正常的流行歌手被分为两组：实验组（n = 20）和控制组（n = 18）。实验组采用单次VFE训练，对照组采用传统的歌唱热身训练。在练习前后记录语音。记录的任务是阅读一个语音平衡的文本和唱一首歌。长期平均频谱（LTAS）分析包括α比值、L-1-L-0比值和振鸣功率比值（SPR）。对训练前后的语音样本的声学参数进行了比较。并与对照组进行比较。治疗后VFE组说话声的α比值、歌唱声功率比值及歌唱声的SPR均有显著变化。对照组的传统发声准备也呈现出前后变化。VFE组和对照组之间的α比率和SPR显着差异被发现在说话的声音样本。这项研究表明，VFE对语音频谱有直接的影响，特别是频谱斜率下降。本研究结果支持VFE作为发声热身对嗓音质量的有利影响。
This case-control study aimed to investigate if there is any change on the spectral slope declination immediately after vocal function exercises (VFE) vs traditional vocal warm-up exercises in normal singers. Thirty-eight pop singers with perceptually normal voices were divided into two groups: an experimental group (n = 20) and a control group (n = 18). One single session with VFE for the experimental group and traditional singing warm-up exercises for the control group was applied. Voice was recorded before and after the exercises. The recorded tasks were to read a phonetically balanced text and to sing a song. Long-term average spectrum (LTAS) analysis included alpha ratio, L-1-L-0 ratio, and singing power ratio (SPR). Acoustic parameters of voice samples pre- and post-training were compared. Comparison between VFE and control group was also performed. Significant changes after treatment included the alpha ratio and singing power ratio in speaking voice, and SPR in the singing voice for VFE group. The traditional vocal warm-up of the control group also showed pre-post changes. Significant differences between VFE group and control group for alpha ratio and SPR were found in speaking voice samples. This study demonstrates that VFE have an immediate effect on the spectrum of the voice, specifically a decrease on the spectral slope declination. The results of this study provide support for the advantageous effect of VFE as vocal warm-up on voice quality.