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Published in:
2012 | OriginalPaper | Chapter
A Study on Speech Enhancement for In-Ear-Microphone
Authors : Chan-Joong Jung, Weon-Gook Chung, Myung-Jin Bae
Published in: Computer Applications for Graphics, Grid Computing, and Industrial Environment
Publisher: Springer Berlin Heidelberg
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The ambient noise may affect a telephone conversation with earphones when a microphone is located outside ear. The earphones with in-ear-microphone can mitigate this problem. However the in-ear-microphone suppresses the first formant and also weakens the harmonics. We propose a new array of compensation filters to enhance the signal quality for earphones with the in-ear microphone, which helps a comfortable telephone conversation even in the ambient noise environment. The proposed method showed enhanced results in the MOS test and spectrogram.