arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1902.01544cs.SDcs.LGeess.ASstat.ML
收藏

一种基于增强支持向量机的语音端点检测方法

An Ensemble SVM-based Approach for Voice Activity Detection

Bangladesh University of Engineering and Technology(孟加拉国工程技术大学)

Jayanta Dey, Md Sanzid Bin Hossain, Mohammad Ariful Haque

摘要:

语音激活检测(VAD)作为语音增强、语音识别和说话人识别算法的前端,决定了算法的整体准确性和效率。因此,具有低复杂度和高精度的VAD对于语音处理应用是非常期望的。本文提出了一种新的基于支持向量机的有监督学习VAD系统的大数据集训练方法。尽管支持向量机(Support Vector Machines,SVM)具有较高的分类精度,但由于训练复杂度较高,不适合用于VAD系统所需的大数据集的分类。为了克服这一问题,本文提出了一种基于SVM的集成方法,并与前馈神经网络(NN)进行了性能比较。虽然NN的性能优于单一的SVM为基础的VAD训练的一小部分的训练数据,集成SVM提供的准确性媲美神经网络为基础的VAD。在测试数据集上,Enseminated SVM和NN的准确率分别为88.74%和86.28%,而独立SVM的平均准确率为57.05%。

英文摘要:

Voice activity detection (VAD), used as the front end of speech enhancement, speech and speaker recognition algorithms, determines the overall accuracy and efficiency of the algorithms. Therefore, a VAD with low complexity and high accuracy is highly desirable for speech processing applications. In this paper, we propose a novel training method on large dataset for supervised learning-based VAD system using support vector machine (SVM). Despite of high classification accuracy of support vector machines (SVM), trivial SVM is not suitable for classification of large data sets needed for a good VAD system because of high training complexity. To overcome this problem, a novel ensemble-based approach using SVM has been proposed in this paper.The performance of the proposed ensemble structure has been compared with a feedforward neural network (NN). Although NN performs better than single SVM-based VAD trained on a small portion of the training data, ensemble SVM gives accuracy comparable to neural network-based VAD. Ensemble SVM and NN give 88.74% and 86.28% accuracy respectively whereas the stand-alone SVM shows 57.05% accuracy on average on the test dataset.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑