Invention Grant
- Patent Title: Long term monitoring of transmission and voice activity patterns for regulating gain control
- Patent Title (中): 长期监测传输和语音活动模式,用于调节增益控制
-
Application No.: US14419924Application Date: 2013-09-09
-
Publication No.: US09521263B2Publication Date: 2016-12-13
- Inventor: Yen-Liang Shue , David Gunawan , Glenn N. Dickins
- Applicant: DOLBY LABORATORIES LICENSING CORPORATION
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- International Application: PCT/US2013/057835 WO 20130909
- International Announcement: WO2014/043024 WO 20140320
- Main IPC: H04M3/56
- IPC: H04M3/56 ; G10L21/0208 ; H03G3/32 ; G10L21/0264 ; G10L21/0324 ; G10L25/84 ; H03G3/30 ; G10L25/78

Abstract:
The present document relates to audio communication systems. In particular, the present document relates to the control of the level of audio signals within audio communication systems. A method for leveling a near-end audio signal (211) using a leveling gain (214) is described. The near-end audio signal (211) comprises a sequence of segments, wherein the sequence of segments comprises a current segment and one or more preceding segments. The method comprises determining a nuisance measure (416) which is indicative of an amount of aberrant voice activity within the sequence of segments of the near-end audio signal (211); and determining the leveling gain (214) for the current segment of the near-end audio signal (211), at least based on the leveling gain (214) for the one or more preceding segments of the near-end audio signal (211), and by taking into account—according to a variable degree—an estimate of the level of the current segment of the near-end audio signal (211); wherein the variable degree is dependent on the nuisance measure (416).
Public/Granted literature
- US20150215467A1 LONG TERM MONITORING OF TRANSMISSION AND VOICE ACTIVITY PATTERNS FOR REGULATING GAIN CONTROL Public/Granted day:2015-07-30
Information query