Movie hall audio live broadcast system for diversified scenes

Abstract

The utility model discloses a movie hall audio live broadcast system for diversified scenes, and relates to the technical field of audio network live broadcast. The movie hall audio live broadcast system comprises a multi-channel audio source, a network encoder, a network decoder and a movie hall body equipped with a surround sound power amplifier system. According to the scheme, multiple paths of audio sources can be transmitted in real time through a network to live broadcast in a movie hall equipped with a 7.1 surround sound power amplifier system, and immersive auditory experience is provided; a plurality of audio sources can be transmitted at the same time through a network transport stream, and multi-channel audio synchronous playing is realized; copyright information can be embedded into audio signals, pirate traceability is facilitated, and copyright security is protected; audio signals from different audio sources can be converted into 7.1 surround sound according to a corresponding relation.

Description

TECHNICAL FIELD

[0001] The utility model relates to audio network live broadcast technical field, especially multi -way audio's network real -time transmission technology and surround sound playback technology in the cinema in diversified scene. BACKGROUND

[0002] The audio in most network live broadcast in the current market is mainly for single audio source, and most of them are stereo, cannot receive multi -way audio source, and cannot play audio as surround sound, cannot play the advantage of cinema surround sound amplifier system to provide immersive listening experience. Lack of protection of the copyright safety of live broadcast content, cannot trace the source of pirated content. At the same time, multi -way audio synchronization and audio signal synchronization also bring challenges to live broadcast reliability.

[0003] Therefore, we propose a cinema audio live broadcast system for diversified scene to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a cinema audio live broadcast system for diversified scene.

[0005] The technical scheme of the utility model is: a cinema audio live broadcast system for diversified scene, comprising a multi -way audio source, a network encoder, a network decoder and a cinema body equipped with a surround sound amplifier system, the network encoder can multiplex and encode the multi -way audio into a network transmission stream and send it; the network decoder can receive the network transmission stream, decode it and upconvert it into multi -way surround sound audio; the cinema body can play the corresponding channel audio through the surround sound amplifier system.

[0006] In a further technical scheme, the network encoder is provided with multi -way audio encoding function and network transmission stream sending function, can receive multi -way audio source, supports up to 8 channels, and encodes the audio signal into network transmission stream and sends it to the network.

[0007] In a further technical scheme, the network decoder is provided with network transmission stream receiving function, audio decoding function, audio upconversion function, digital watermark embedding function and audio signal synchronization function, can receive network transmission stream, decode the network transmission stream into audio signal, upconvert stereo or 2-6 channel audio signal into surround sound, embed digital watermark information in surround sound audio, and send the audio signal to the cinema surround sound amplifier system according to the synchronization signal.

[0008] In a further technical scheme, the cinema is equipped with a 7.1 surround sound amplifier system, comprising a left channel loudspeaker, a right channel loudspeaker, a center channel loudspeaker, a subwoofer, a left surround channel loudspeaker, a left rear surround channel loudspeaker, a right surround channel loudspeaker and a right rear surround channel loudspeaker, each loudspeaker plays corresponding channel audio to realize surround sound playback.

[0009] The utility model discloses the beneficial effect is:

[0010] 1, this design scheme can realize multichannel audio source through network real -time transmission in the cinema equipped with 7.1 surround sound amplifier system live broadcast, provide immersive hearing experience.

[0011] 2, this design scheme sets up multichannel audio codec function in network codec respectively, can transmit multiple audio sources simultaneously through network transmission stream, and realizes multichannel audio synchronous playback.

[0012] 3, this design scheme sets up digital watermark embedding function in network decoder, can embed copyright information into audio signal, facilitate pirated tracing, and protect copyright security.

[0013] 4, this design scheme sets up audio up conversion function in network decoder, can convert the audio signal from different audio sources into 7.1 surround sound according to the corresponding relationship. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the cinema audio live broadcast system structure schematic diagram of the utility model embodiment facing diversified scene. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described here are only used to explain the present application, and are not used to limit the present application.

[0016] The utility model is further described in detail in combination with the drawings.

[0017] As Figure 1 Shown, with game event scene as example, the cinema audio live broadcast system facing diversified scene includes audio source A (game original sound), audio source B (commentary sound), audio source C (audience environment sound), network encoder, network decoder and the cinema body equipped with 7.1 surround sound amplifier system.

[0018] In the embodiment, the network encoder can access multichannel audio source (A, B, C), support up to 8 channels, and encode the audio signal into network transmission stream and send to the network.

[0019] In the embodiment, the network decoder receives the network transmission stream, decodes the network transmission stream into audio signals, and up-converts the decoded audio signals into surround sound, specifically, up-converts the game original sound of the audio source A into a left channel L and a right channel R of stereo sound, and picks up a subwoofer LFE; maps the commentary sound of the audio source B to a center channel C; copies and maps the audience ambient sound of the audio source C to a left surround channel Ls, a left back surround channel Bsl, a right surround channel Rs and a right back surround channel Bsr; and embeds digital watermark information in the surround sound.

[0020] In the embodiment, the theater is equipped with a 7.1 surround sound power amplifier system, which includes a left channel speaker, a right channel speaker, a center channel speaker, a subwoofer speaker, a left surround channel speaker, a left back surround channel speaker, a right surround channel speaker and a right back surround channel speaker, each speaker playing corresponding channel audio to achieve surround sound playback.

[0021] The above embodiments only express the specific implementation of the present application, and the description is more specific and detailed. However, it should not be interpreted as a limitation on the scope of the present application. It should be noted that for other live scenes of events or performances, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application.

Claims

1.A cinema audio live system for diversified scenarios, comprising a plurality of audio sources, a network encoder, a network decoder and a cinema body equipped with a surround sound power amplifier system, characterized in that, the network encoder can multiplex and encode the plurality of audio sources into a network transmission stream; the network decoder can receive and decode the network transmission stream and up-convert it into a plurality of surround sound audio; and the cinema body can play the corresponding channel audio through the surround sound power amplifier system. 2.The cinema audio live system for diversified scenarios according to claim 1, characterized in that, the network encoder is provided with a plurality of audio encoding functions and network transmission stream sending functions. 3.The cinema audio live system for diversified scenarios according to claim 1, characterized in that, the network decoder is provided with network transmission stream receiving functions, audio decoding functions, audio up-conversion functions, digital watermark embedding functions and audio-video signal synchronization functions. 4.The cinema audio live system for diversified scenarios according to any one of claims 1-3, characterized in that, the cinema is equipped with a 7.1 surround sound power amplifier system, comprising a left channel speaker, a right channel speaker, a center channel speaker, a subwoofer, a left surround channel speaker, a left rear surround channel speaker, a right surround channel speaker and a right rear surround channel speaker.

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