语音识别前可否对声音进行处理
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唤醒之后，在线的语音识别之前，录得声音，可否我们进行声音的降噪处理和回声消除再上传音频。我看SDK没有提供这两种能力，所以在音频流上传之前，我们能否自己研发加入这种能力？
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sdk本身没有降噪和回声消除的功能。您可以自己研发加入这种能力。