欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
类似数字摄像机的视频采集系统在摄像头缩放或自动对焦时产生较大声噪,回放时主观听觉十分明显。因此需要研究一种抑制一种语音降噪算法,用于消除马达高速旋转引起的可感知机械干扰声噪。本文提出能够平滑调焦和自动聚焦及语音增强的方案。通过改进的鲁棒自适应麦克风阵列方法从带噪信号中恢复语音;同时采用子带后处理法进一步降噪,保证稳定性的前提下降低了语音降噪处理的复杂度并提高信噪比。带噪数据由三洋公司提供,实验在普通会议室进行。实验结果说明,该系统可作为理想的语音降噪设备应用于摄像机录制过程中。
英文摘要：
Video recording equipment such as digital cameras often generates mechanical noise when zooming or auto-focusing. The subjective auditory perception is obviously during playback of video.One of the most important challenges is to research a new noise suppression algorithm to minimize the noticeable loud mechanical interference caused by high-speed operation of motors.In this paper, we proposed some technologies enable to smooth zooming and auto-focusing noise and enhance speech.A Modified Microphone Array is introduced as a robust adaptive method to enhance desired signal polluted by stationary noise.This paper also presents one Subband post-filtering approach to further drop out the complexity of system and improve the SNR.Noisy data is collected by SANYO Electric Co.Experiments are finished in the normal meeting room.The results show that this system can be an ideal noise reduction device applied for camera recording process.
同期刊论文项目
同项目期刊论文
Time-frequency cepstral features and combining discriminative training for phonotactic language reco
Time-frequency cepstral features and heteroscedastic linear discriminant analysis for language recog
Speech Enhancement Using Robust Generalized Side lobe Canceller with Multi-Channel Post-Filtering in
A Novel Similarity Measure to Induce Semantic Classes and Its Application for Language Model Adaptat
Multi-resolution time frequency feature and complementary combination for short utterance speaker re
Acoustic characteristics of stop consontants in fluent reading Chinese Putonghua speech of adult stu
Auditory frequency-following response: a neurophysiological measure for studying the “cocktail-party
Adding irrelevant information to the content prime reduces the prime-induced unmasking effect on spe
期刊信息
位置：