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54results about How to "Extend play time" patented technology

Audio playing processing method

The invention provides an audio playing processing method. The audio playing processing method comprises the steps of calculating a difference value between a theoretical sampling point number and anactual sampling point number of audio data when each audio frame is played; when the sampling point number difference value of the current audio frame is greater than the sampling point number difference value of the previous audio frame, reducing the sampling rate of the audio data, or when the sampling point number difference value of the current audio frame is less than or equal to the samplingpoint number difference value of the previous audio frame, improving the sampling rate of the audio data; so that a local device can stably play the audio data transmitted by the remote device. According to the method, the actual sampling rate is set to be lower than the original sampling rate in the initial stage of audio playing, so that a buffer area can start audio playing without caching more audio data, and the problem of relatively large sound delay during audio playing in the prior art is solved; by reducing the playing sampling rate, the playing time of the current data is prolonged,the problem of audio lag is reduced, and the problem of lag due to the fact that the far-end audio data does not reach the equipment end in time in the prior art is solved.
Owner:ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD

Vehicle mobile terminal

The invention relates to a vehicle-mounted mobile terminal which comprises a signal strength detection module, a battery allowance detection module, an electric quantity management module, an audio and video playing module and an audio and video storage device, wherein the electric quantity management module is connected with the signal strength detection module, the battery allowance detection module, the audio and video playing module and the audio and video storage device and controls playing of audio and video contents in the audio and video playing module and storage of the audio and video contents in the audio and video storage device in a digital television program according to digital television signal strength detected by the signal strength detection module and the residual electric quantity of an automobile storage battery detected by the battery allowance detection module. With the vehicle-mounted mobile terminal, the electric quantity resources of the battery can be rationally distributed according to the quality of a detected digital television signal and the battery allowance of the automobile storage battery, and a scientific audio and video content playing strategy is made, so that the time of a user for watching the audio and video contents is relatively prolonged.
Owner:扬州苏安物联传感科技有限公司

Vehicle-mounted mobile terminal

The invention relates to a vehicle-mounted mobile terminal which comprises a signal strength detection module, a battery allowance detection module, an electric quantity management module, an audio and video playing module and an audio and video storage device, wherein the electric quantity management module is connected with the signal strength detection module, the battery allowance detection module, the audio and video playing module and the audio and video storage device and controls playing of audio and video contents in the audio and video playing module and storage of the audio and video contents in the audio and video storage device in a digital television program according to digital television signal strength detected by the signal strength detection module and the residual electric quantity of an automobile storage battery detected by the battery allowance detection module. With the vehicle-mounted mobile terminal, the electric quantity resources of the battery can be rationally distributed according to the quality of a detected digital television signal and the battery allowance of the automobile storage battery, and a scientific audio and video content playing strategy is made, so that the time of a user for watching the audio and video contents is relatively prolonged.
Owner:扬州苏安物联传感科技有限公司

Audio and video synchronous playing method based on audio scaling

The invention discloses an audio and video synchronous playing method based on audio scaling. The whole playing process is processed according to an Audio playing thread and a Video playing thread, the Audio playing thread dominates the time control of the whole playing, the two threads share the same buffer area, the buffer area receives audio and video data transmitted from the upstream, two sample queues arranged according to a timestamp sequence are formed, and the sample at the foremost end of the queues is the sample to be played and processed at present; the method specifically comprises the following steps: after a buffer area is initialized, emptying a queue; setting media playing time mediaPlayTime, namely accumulated audio sample time, setting the media playing time mediaPlayTime by an Audio playing thread, and resetting an initial value; setting an audio scaling time value tDelta to represent the amplitude of the current Audio data needing to be scaled, setting the value bythe Video playing thread, reading the value by the Audio playing thread, and controlling playing according to the value. The invention has the advantages that audio and video playing synchronizationis achieved, the principle is simple, operation is convenient, implementation is easy, and the effect is obvious.
Owner:HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
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