CN109413442A - A kind of speaker self-adaption code rate adjusting method - Google Patents

A kind of speaker self-adaption code rate adjusting method Download PDF

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Publication number
CN109413442A
CN109413442A CN201811187458.7A CN201811187458A CN109413442A CN 109413442 A CN109413442 A CN 109413442A CN 201811187458 A CN201811187458 A CN 201811187458A CN 109413442 A CN109413442 A CN 109413442A
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code rate
noise
data
parameter
server
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CN201811187458.7A
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CN109413442B (en
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谷华
吕继伦
陈遗保
何奇
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Nanjing Machinery Island Intelligent Technology Co Ltd
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Nanjing Machinery Island Intelligent Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/233—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/233—Processing of audio elementary streams
    • H04N21/2335—Processing of audio elementary streams involving reformatting operations of audio signals, e.g. by converting from one coding standard to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H04N21/2355—Processing of additional data, e.g. scrambling of additional data or processing content descriptors involving reformatting operations of additional data, e.g. HTML pages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals

Abstract

The present invention provides a kind of speaker self-adaption code rate adjusting method, comprising the following steps: S1, defines best loading velocity as S Kbps, definition multistage code rate range is Δ s, and determines that current device receives range of code rates R=[M, N], reports server；S2, bit rate controller are transmitted according to range of code rates R value is received with initial value N Kbps code rate；S3, Noise Acquisition module device end periphery noise gathering obtain user and equipment end distance apart from acquisition module, and report server；S4, noise data are stored as history noise treatment data, and range data is stored as history distance processing data；S5, noise analysis module obtain current code rate Y1=N- (N-M) * (W1-K1)/K1；S6, distance processing analysis module, obtain current code rate Y2=N-e* (W2-K2)/K2；S7, current code rate control parameter Z1 is generated, adjustment code rate is Z1；S8, current code rate control parameter Z2 is generated, adjustment code rate is Z2；S9, code rate control parameter Z=Z1*M+Z2* (1-M) can be effectively combined user's usage scenario and adaptively adjust code rate transmission.

Description

A kind of speaker self-adaption code rate adjusting method
Technical field
The invention belongs to multimedia technology fields, and in particular to a kind of speaker self-adaption code rate adjusting method.
Background technique
Currently, intelligent sound box equipment is more and more common, and user group is gradually huge, since intelligent sound box equipment major function is Be responsible for playing cloud audio resource, the problem of tradition carries out audio resource transmission with cbr (constant bit rate) to the pressure of server-side increasingly Greatly, while existing some adaptive code rates are transmitted for intelligent sound box equipment and are not suitable for, and this method is primarily directed to intelligence A kind of automatic adjusument code rate method based on user's effective distance that sound-box device provides, can be effectively combined user makes With scene adaptive adjustment code rate transmission.
Code rate adaptive approach of the prior art based on client terminal quantity, this method be suitble to client service life compared with The case where dispersion, is in good network environment in client in the case that client terminal quantity is more, still will lead to visitor Family obtains the resource of low bit- rate, and current smart machine is relatively easy to gather the identical user of a large amount of use habits, it is easier to The resource for the low bit- rate for causing client to obtain always.
Summary of the invention
The object of the present invention is to provide a kind of speaker self-adaption code rate adjusting methods, provide a kind of speaker self-adaption code rate tune Section method reports server-side by environment distance and noise information, and server-side is generated by historical Device and user distance information Noise and apart from adjustment parameter, finally calculates code rate adjustment parameter, and automatic adjustment audio propagates code rate.
The present invention provides the following technical solutions:
A kind of speaker self-adaption code rate adjusting method, applied to the equipment end being connect with server communication, to equipment end sound Video carries out code rate automatic adjusument, the described method comprises the following steps:
S1, equipment end include network monitoring module acquisition current network state playing resource loading velocity, and definition is best to be added Load speed is S Kbps, and definition multistage code rate range is Δ s, and determines that current device receives range of code rates R=[M, N], is reported The initialization code rate range parameter R that server defines；
S2, equipment end request resource to server-side, and server-side includes bit rate controller, and bit rate controller is according to reception code rate Range R value is transmitted with initial value N Kbps code rate；
S3, equipment end include Noise Acquisition module with fixed frequency f progress equipment end periphery noise gathering, pre- by noise Processing module digital coding, which generates noise data and compresses timing, reports server；Equipment end includes apart from acquisition module with solid Fixed cycle F obtains user and equipment end distance, generates range data and reports server；
S4, noise data are stored as history noise treatment data, and range data is stored as history distance processing data；
S5, server-side include noise analysis module, raw by noise data, history noise processed data and audio data At noise intensity parameter W1, reference noise parameter K1 is given, obtains current code rate Y1=N- (N-M) * (W1-K1)/K1；
S6, server-side include distance processing analysis module, pass through range data, history distance processing data and audio number According to generation distance parameter W2, gives reference distance parameter K2 and code rate adjusts benchmark e, obtains current code rate Y2=N-e* (W2- K2)/K2；
The bit rate controller reception noise analysis module data of S7, server-side, in conjunction with history code rate X1 and current code rate Y1 Meet 8:2 relationship, then generate current code rate control parameter Z1, if when math.abs (Z1-X1) > 10Kbps, adjustment code rate is Z1；
The bit rate controller reception distance processing analysis module data of S8, server-side, in conjunction with history code rate X2 and work as former code Rate Y2 meets 8:2 relationship, then generates current code rate control parameter Z2, if when math.abs (Z2-X2) > 10Kbps, adjusting code rate For Z2；
The adjustment parameter of S9, definition noise and distance are M, then code rate control parameter Z=Z1*M+Z2* (1-M).
Preferably, the multistage code rate range delta s include Δ s1, Δ s2, Δ s3 and Δ s4, the Δ s1=400Kbps > =S > 320Kbps, the Δ s2=320Kbps >=S > 240Kbps, the Δ s3=240Kbps >=S > 160Kbps are described Δ s4=160Kbps >=S > 80Kbps.
Preferably, in the S5, the noise intensity parameter W1 and the reference noise parameter K1 meet K1≤W1 and 0 < (W1-K1)/K1≤1.
Preferably, in the S6, the distance parameter W2 and the reference distance parameter K2 meet K2≤W2 and 0 < (W2- K2)/K2≤1.
Preferably, in the S9, the adjustment parameter M meets 0 < x < 1.
The beneficial effects of the present invention are:
A kind of speaker self-adaption code rate adjusting method of the present invention is based on surrounding enviroment for one kind that sound-box device end provides The acquisition process automatic adjusument code rate method of noise and user and equipment end distance, can be effectively combined user's usage scenario Adaptive adjustment code rate transmission, can increase the utilization rate of network bandwidth, improve user experience；Service end pressure is reduced, it can be with More equipment ends are supported to use.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the method for the present invention flow diagram；
Fig. 2 is structure of the invention block schematic illustration.
Specific embodiment
As shown in Figs. 1-2, a kind of speaker self-adaption code rate adjusting method, the equipment applied to being connect with server communication End, to equipment end audio-video carry out code rate automatic adjusument, method the following steps are included:
S1, equipment end include network monitoring module acquisition current network state playing resource loading velocity, and definition is best to be added Load speed is S Kbps, and definition multistage code rate range is Δ s, and determines that current device receives range of code rates R=[M, N], is reported The initialization code rate range parameter R that server defines；
S2, equipment end request resource to server-side, and server-side includes bit rate controller, and bit rate controller is according to reception code rate Range R value is transmitted with initial value N Kbps code rate；
S3, equipment end include Noise Acquisition module with fixed frequency f progress equipment end periphery noise gathering, pre- by noise Processing module digital coding, which generates noise data and compresses timing, reports server；Equipment end includes apart from acquisition module with solid Fixed cycle F obtains user and equipment end distance, generates range data and reports server；
S4, noise data are stored as history noise treatment data, and range data is stored as history distance processing data；
S5, server-side include noise analysis module, raw by noise data, history noise processed data and audio data At noise intensity parameter W1, reference noise parameter K1 is given, obtains current code rate Y1=N- (N-M) * (W1-K1)/K1；
S6, server-side include distance processing analysis module, pass through range data, history distance processing data and audio number According to generation distance parameter W2, gives reference distance parameter K2 and code rate adjusts benchmark e, obtains current code rate Y2=N-e* (W2- K2)/K2；
The bit rate controller reception noise analysis module data of S7, server-side, in conjunction with history code rate X1 and current code rate Y1 Meet 8:2 relationship, then generate current code rate control parameter Z1, if when math.abs (Z1-X1) > 10Kbps, adjustment code rate is Z1；
The bit rate controller reception distance processing analysis module data of S8, server-side, in conjunction with history code rate X2 and work as former code Rate Y2 meets 8:2 relationship, then generates current code rate control parameter Z2, if when math.abs (Z2-X2) > 10Kbps, adjusting code rate For Z2；
The adjustment parameter of S9, definition noise and distance are M, then code rate control parameter Z=Z1*M+Z2* (1-M).
Specifically, multistage code rate range delta s includes Δ s1, Δ s2, Δ s3 and Δ s4, Δ s1=400Kbps >=S > 320Kbps, Δ s2=320Kbps >=S > 240Kbps, Δ s3=240Kbps >=S > 160Kbps, Δ s4=160Kbps >=S In>80Kbps, S5, noise intensity parameter W1 and reference noise parameter K1 meet K1≤W1 and 0<(W1-K1)/K1≤1, S6 In, distance parameter W2 and reference distance parameter K2 meet in K2≤W2 and 0 < (W2-K2)/K2≤1, S9, and adjustment parameter M meets 0<x<1。
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (5)

1. a kind of speaker self-adaption code rate adjusting method, which is characterized in that right applied to the equipment end being connect with server communication Equipment end audio-video carries out code rate automatic adjusument, the described method comprises the following steps:
S1, equipment end include network monitoring module acquisition current network state playing resource loading velocity, define best load speed Degree is S Kbps, and definition multistage code rate range is Δ s, and determines that current device receives range of code rates R=[M, N], reports service The initialization code rate range parameter R that device defines；
S2, equipment end request resource to server-side, and server-side includes bit rate controller, and bit rate controller is according to reception range of code rates R value is transmitted with initial value N Kbps code rate；
S3, equipment end include Noise Acquisition module with fixed frequency f progress equipment end periphery noise gathering, are pre-processed by noise Module digitalized current coding, which generates noise data and compresses timing, reports server；Equipment end includes apart from acquisition module with fixed week Phase F obtains user and equipment end distance, generates range data and reports server；
S4, noise data are stored as history noise treatment data, and range data is stored as history distance processing data；
S5, server-side include noise analysis module, are made an uproar by noise data, history noise processed data and audio data, generation Sound intensive parameter W1 gives reference noise parameter K1, obtains current code rate Y1=N- (N-M) * (W1-K1)/K1；
S6, server-side include distance processing analysis module, raw by range data, history distance processing data and audio data At distance parameter W2, give reference distance parameter K2 and code rate adjust benchmark e, obtain current code rate Y2=N-e* (W2-K2)/ K2；
The bit rate controller reception noise analysis module data of S7, server-side, meet in conjunction with history code rate X1 and current code rate Y1 8:2 relationship then generates current code rate control parameter Z1, if when math.abs (Z1-X1) > 10Kbps, adjustment code rate is Z1；
The bit rate controller reception distance processing analysis module data of S8, server-side, in conjunction with history code rate X2 and current code rate Y2 Meet 8:2 relationship, then generate current code rate control parameter Z2, if when math.abs (Z2-X2) > 10Kbps, adjustment code rate is Z2；
The adjustment parameter of S9, definition noise and distance are M, then code rate control parameter Z=Z1*M+Z2* (1-M).
2. a kind of speaker self-adaption code rate adjusting method according to claim 1, which is characterized in that the multistage code rate model Enclosing Δ s includes Δ s1, Δ s2, Δ s3 and Δ s4, the Δ s1=400Kbps >=S > 320Kbps, the Δ s2=320Kbps >=S > 240Kbps, the Δ s3=240Kbps >=S > 160Kbps, the Δ s4=160Kbps >=S > 80Kbps.
3. a kind of speaker self-adaption code rate adjusting method according to claim 1, which is characterized in that described in the S5 Noise intensity parameter W1 and the reference noise parameter K1 meet K1≤W1 and 0 < (W1-K1)/K1≤1.
4. a kind of speaker self-adaption code rate adjusting method according to claim 1, which is characterized in that described in the S6 Distance parameter W2 and the reference distance parameter K2 meet K2≤W2 and 0 < (W2-K2)/K2≤1.
5. a kind of speaker self-adaption code rate adjusting method according to claim 1, which is characterized in that described in the S9 Adjustment parameter M meets 0 < x < 1.
CN201811187458.7A 2018-10-12 2018-10-12 Sound box self-adaptive code rate adjusting method Active CN109413442B (en)

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