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发明授权
CN103516440B 语音频信号处理方法和编码装置 有权

语音频信号处理方法和编码装置
摘要：
本发明实施例提供一种基于带宽切换的语音频信号处理方法和编码装置。方法，包括：若第一带宽语音频信号是谐波信号，则调整第二带宽语音频信号被判决为谐波信号的判决条件得到第一判决条件，以提高所述第二带宽语音频信号被判决为谐波信号的可能性；所述第一带宽语音信号为带宽切换前的信号，所述第二带宽语音频信号为带宽切换后的信号；根据所述第一判决条件，判决所述第二带宽语音频信号是否为谐波信号。本发明实施例可以在带宽切换的情况下，尽可能使得语音频信号的信号类型在切换前后保持一致，从而使得解码端设备解码后的语音频信号尽可能连续，进而提高语音通信服务质量。
摘要（英）：

Embodiments of the present invention provide a speech/audio signal processing method based on wideband switching and a coding apparatus. The method includes: if a first wideband speech/audio signal is a harmonic signal, adjusting a determining condition for determining that a second wideband speech/audio signal is a harmonic signal, to obtain a first determining condition, so as to raise a possibility of determining that the second wideband speech/audio signal is a harmonic signal, where the first wideband speech signal is a signal before wideband switching, and the second wideband speech/audio signal is a signal after the wideband switching; and determining, according to the first determining condition, whether the second wideband speech/audio signal is a harmonic signal. In the embodiments of the present invention, in the case of wideband switching, signal types of speech/audio signals remain as consistent as possible before and after the switching, so that continuity of the speech/audio signal decoded by a decoder device is ensured as much as possible, further improving speech communication service quality.

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