基于MFCC与Chroma融合特征的录音设备识别  

Recognition of Recording Equipment Based on MFCC Features and Chroma Features

作　　者：周轶凡 包永强[1] ZHOU Yi-fan;BAO Yong-qiang(School of Information and Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

机构地区：[1]南京工程学院信息与通信工程学院,江苏南京211167

出　　处：《南京工程学院学报（自然科学版）》2020年第3期49-53,共5页Journal of Nanjing Institute of Technology(Natural Science Edition)

基　　金：南京工程学院院级科研基金项目(CXY201931)。

摘　　要：视听资料是我国法律认定的证据之一,然而音视频的修改技术使证据真实性难以分辨.通过建立手机录音数据库,采用Chroma特征与MFCC特征融合的方法,利用多层感知器识别出对应录音的手机型号,达到音频取证的目的.试验结果表明采用Chroma特征与MFCC特征融合的方法可以有效提升录音设备的识别率.Audio and visual material is considered as evidence recognized by laws in our country.However,the modification technology of audio and video is a test of the authenticity of evidence.This paper aims to explore the ways of obtaining audio evidence by establishing mobile phone recording database and combining Chroma features and MFCC features.Multi-layer perceptron is used to identify the corresponding recording of mobile phone models.The results of the experiments show that the combination of Chroma features and MFCC features improves the recognition rate of recording equipments.

关 键 词：MFCC 多层感知器 音频取证 Chroma特征 

分 类 号：TN912.3[电子电信—通信与信息系统]