Synchronous audio playback method, apparatus and system
US10180981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2015 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8113
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A synchronous audio playback method, apparatus and system are provided. The method includes calculating a first playback delay generated when an audio file is played; acquiring a second playback delay; calculating a delay offset; calculating a data adjustment amount; adding to-be-adjusted data to or deleting to-be-adjusted data from a current to-be-played part of the audio file according to a value of the delay offset, to obtain a replacement part corresponding to the current to-be-played part, where a data amount of the to-be-adjusted data is the data adjustment amount; and playing the replacement part. With the technical solutions of the present invention, playback duration of a current to-be-played part can be adjusted in a manner of adding or deleting data, so that a controlling device and a controlled device generate sounds simultaneously when playing a to-be-played clip in a very simple implementation process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.