公开(公告)号：US09159328B1

公开(公告)日：2015-10-13

申请号：US14227659

申请日：2014-03-27

Applicant: Verizon Patent and Licensing Inc.

Inventor： Erwin Goesnar ,  Ravi Kalluri

IPC: G10L19/018 ,  G06Q30/02

CPC classification number: G10L19/018 ,  G06Q30/0241

Abstract: A device may receive an audio sample, and may separate the audio sample into multiple sub-band signals in multiple frequency bands. The device may modify an upper boundary and a lower boundary of at least one of the frequency bands to form modified frequency bands. The device may modify the sub-band signals to form banded signals associated with the modified frequency bands. The device may smooth the banded signals to form smoothed signal values. The device may identify peak values included in the smoothed signal values, and may generate an audio fingerprint for the audio sample based on the smoothed signal values and the peak values.

Abstract translation: 设备可以接收音频采样，并且可以将音频样本分离成多个频带中的多个子带信号。 设备可以修改至少一个频带的上边界和下边界以形成修改的频带。 该装置可以修改子带信号以形成与修改的频带相关联的带状信号。 该装置可以平滑带状信号以形成平滑的信号值。 该装置可以识别包括在平滑信号值中的峰值，并且可以基于平滑的信号值和峰值来生成音频样本的音频指纹。