Adaptive audio stream with latency compensation
US9521057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A latency compensating adaptive jitter buffer method is implemented in an audio client running on a user device or in an audio server to adaptively adjust the size of a jitter buffer to optimize latency while minimizing packet loss during audio signal transmission. In some embodiments, the jitter buffer is kept to a nominal size for low latency. In response to a queuing delay event being detected, audio production is temporarily stopped and the size of the jitter buffer is temporarily increased to receive all incoming audio packets up to a certain refill level. The method then resumes audio production using accelerated playback to reduce the jitter buffer size back to the nominal size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.