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AUDIO DECODER FOR WIND AND MICROPHONE NOISE REDUCTION IN A MICROPHONE ARRAY SYSTEM
AUDIO DECODER FOR WIND AND MICROPHONE NOISE REDUCTION IN A MICROPHONE ARRAY SYSTEM
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机译:用于麦克风阵列系统中风声和麦克风噪音降低的音频解码器
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摘要
An audio system encodes and decodes audio captured by a microphone array system in the presence of wind noise. The encoder encodes the audio signal in a way that includes beamformed audio signal and a “hidden” representation of a non-beamformed audio signal. The hidden signal is produced by modulating the low frequency signal to a high frequency above the audible range. A decoder can then either output the beamformed audio signal or can use the hidden signal to generate a reduced wind noise audio signal that includes the non-beamformed audio in the low frequency range.
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