Teacher College, Columbia University, New York 10027, NY, USA.
Comput Intell Neurosci. 2022 Mar 11;2022:3733818. doi: 10.1155/2022/3733818. eCollection 2022.
With the development of the Internet of Things, many industries have been on the train of the information age, and digital audio technology is also constantly developing. Music retrieval has gradually become a research hotspot in the music industry. Among them, the auxiliary recognition of music characteristics is also a particularly important Task. Music retrieval is mainly to manually extract music signals, but now the music signal extraction technology has encountered a bottleneck. The article uses Internet and artificial intelligence technology to design an SNN music feature recognition model to identify and classify music features. The research results of the article show (1) statistic graphs of the main melody and accompanying melody of different music. The absolute value of the main melody and accompanying melody mainly fluctuates in the range of 0-7, and the proportion of the main melody can reach 36%. The accompanying melody can reach 17%. After the absolute value of the interval reaches 13, the interval ratio of the main melody and the accompanying melody tends to be stable, maintaining between 0.6 and 0.9, and the melody interval ratio value completely coincides; the main melody in the interval variable is . (1) The relative difference value in the interval of -(16) fluctuates greatly. After the absolute value of the interval reaches 17, the interval ratio of the main melody and the accompanying melody tends to be stable, maintaining between 0.01 and 0.04 and the main melody. The value of the difference is always higher than the accompanying melody. (2) When the number of feature maps is 245, the recognition result is the most accurate, MAP recognition result can reach 78.8, and the recognition result of precision@ is 79.2; when the feature map size is 55, the recognition result is the most accurate, MAP recognition result can reach 78.9, the recognition result of precision@ is 79.2, and the recognition result of HAM2 (%) is 78.6. The detection accuracy of the SNN music recognition model proposed in the article is the highest. When the number of bits is 64, the detection accuracy of the SNN detection model is 59.2%, and the detection accuracy of the improved SNN music recognition model is 79.3%, which is better than the detection rate of ITQ music recognition model of 17.9%, which is 61.4% higher. The experimental data further shows that the detection efficiency of the ITQ music recognition model is the highest. (3) The SNN music recognition model proposed in the article has the highest detection accuracy, regardless of whether it is in a noisy or no-noise music environment, with an accuracy rate of 97.97% and a detection accuracy value of 0.88, which is 5 types of music. The highest one among the recognition models, the ITQ music recognition model, has the lowest detection accuracy, with a detection accuracy of 67.47% in the absence of noise and a detection accuracy of 70.23% in the presence of noise. Although there is a certain noise removal technology, it can suppress noise interference to a certain extent, but cannot accurately describe music information, and the detection accuracy rate is also low.
随着物联网的发展,许多行业已经搭上了信息时代的列车,数字音频技术也在不断发展。音乐检索逐渐成为音乐产业的研究热点。其中,音乐特征的辅助识别也是一项特别重要的任务。音乐检索主要是手动提取音乐信号,但现在音乐信号提取技术已经遇到了瓶颈。本文利用互联网和人工智能技术设计了一个 SNN 音乐特征识别模型,用于识别和分类音乐特征。文章的研究结果表明:(1)不同音乐的主旋律和伴奏旋律的统计图形。主旋律和伴奏旋律的绝对值主要在 0-7 的范围内波动,主旋律的比例可达 36%,伴奏旋律可达 17%。间隔的绝对值达到 13 后,主旋律和伴奏旋律的间隔比趋于稳定,保持在 0.6 到 0.9 之间,旋律间隔比的值完全一致;主旋律在间隔变量中为.(1)间隔的相对差值在-(16)处波动较大。间隔的绝对值达到 17 后,主旋律和伴奏旋律的间隔比趋于稳定,保持在 0.01 到 0.04 之间,主旋律的差值值始终高于伴奏旋律。(2)当特征图数量为 245 时,识别结果最准确,MAP 识别结果可达 78.8,precision@识别结果为 79.2;当特征图大小为 55 时,识别结果最准确,MAP 识别结果可达 78.9,precision@识别结果为 79.2,HAM2(%)的识别结果为 78.6。文章提出的 SNN 音乐识别模型的检测准确率最高。当比特数为 64 时,SNN 检测模型的检测准确率为 59.2%,改进后的 SNN 音乐识别模型的检测准确率为 79.3%,优于 ITQ 音乐识别模型的检测率 17.9%,高 61.4%。实验数据进一步表明,ITQ 音乐识别模型的检测效率最高。(3)文章提出的 SNN 音乐识别模型检测准确率最高,无论是在嘈杂还是无噪声音乐环境下,准确率均为 97.97%,检测准确率为 0.88,是 5 种音乐识别模型中最高的。ITQ 音乐识别模型的检测准确率最低,在无噪声时的检测准确率为 67.47%,在有噪声时的检测准确率为 70.23%。虽然有一定的噪声去除技术,可以在一定程度上抑制噪声干扰,但无法准确描述音乐信息,检测准确率也较低。