Audio multi-track manufacturing system based on 4K ultra-high-definition relay vehicle

Abstract

The utility model relates to an audio multi-track manufacturing system based on a 4K ultra-high-definition relay vehicle. The audio multi-track manufacturing system comprises a sound source acquisition device, an audio signal source, a signal input item, an audio signal distribution device, a signal conversion centralized output device, an audio track device and a storage device. The sound source acquisition equipment and the audio signal source are connected to the signal input item and the signal conversion centralized output equipment, the signal input item is connected to the audio signal distribution equipment, and the audio signal distribution equipment is connected to the signal conversion centralized output equipment; the signal conversion centralized output equipment is connected to the recording hard disk through the audio track equipment; the audio signals required in the later stage are connected to the audio workstation through the audio matrix and then are acquired through separate-track recording independently by the recording computer connected with the audio workstation, and each sound source on site is independently stored in each audio track in a lossless and unprocessed state. And later-stage personnel can extract required sound sources according to needs without worrying about inconvenience caused by various treatments on the sound sources due to rebroadcast content needs.

Description

TECHNICAL FIELD

[0001] The utility model belongs to audio signal processing technical field, concretely is a kind of audio multi-track production system in 4K ultra-high-definition car. BACKGROUND

[0002] In the era of high-speed development of digital media, 4K ultra-high-definition car as advanced live broadcast tool can carry out multi-form full-media program content production and signal transmission, however, with the continuous progress of television broadcast technology and the increasing demand of various media applications in later period, the traditional audio processing method gradually shows many shortcomings.

[0003] At present, the audio required by television live broadcast is often specifically processed to meet the requirements of real-time broadcast, which is quite different from the diversified needs of audio by various other media in later period. For example, the audio material that is more pure and not processed much may be needed for later production to carry out fine editing and special effect processing. But due to the limitation of existing technology, the audio material processed by television broadcast is often used by later production personnel, which leads to problems such as audio track extraction, unsatisfactory material and inability to use, and also greatly increases the workload of relevant personnel.

[0004] Chinese patent CN114040316A provides a car supporting high-format three-dimensional sound, including mixing console, monitoring system, audio workstation and dolby device, but the car can only be used for television live broadcast and cannot meet the needs of audio required by various other media in later period.

[0005] Therefore, with the development of television broadcast technology and the improvement of media application requirements in later period, a standardized and fine signal recording and processing capability becomes particularly important. CONTENT OF UTILITY MODEL

[0006] (I) Technical problem solved

[0007] To solve the above problems, the utility model provides an audio multi-track production system in 4K ultra-high-definition car, which solves the problem of inconsistency between television live broadcast and audio required by various other media in later period, and can meet the audio requirements of television live broadcast and various media in later period.

[0008] (II) Technical scheme

[0009] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0010] An audio multi-track production system based on a 4K ultra-high-definition OB van, comprising a sound source collection device and an audio signal source, a signal input item, an audio signal distribution device, a signal conversion centralized output device, an audio track device and a storage device; the sound source collection device and the audio signal source are in communication connection with the signal input item and the signal conversion centralized output device, the signal input item is in communication connection with the audio signal distribution device, the audio signal distribution device is in communication connection with the signal conversion centralized output device, the signal conversion centralized output device is in communication connection with the audio track device, and the audio track device is in communication connection with the storage device.

[0011] Further, the sound source collection device and the audio signal source include a live sound pickup device, an audio peripheral device, and an embedded audio output interface of a video device; the signals generated or output by these source devices include analog audio signals and digital audio signals.

[0012] Further, the signal input item includes an analog channel trailer interface and a digital channel trailer interface.

[0013] Further, the audio signal distribution device includes a passive audio distributor for distributing analog audio signals, and an active digital audio distributor for distributing digital audio signals.

[0014] Further, the signal conversion centralized output device includes a local interface box and an audio matrix.

[0015] Further, the audio track device is an audio workstation.

[0016] Further, the storage device is a recording hard disk.

[0017] Analog audio signals are connected into the passive audio distributor via the analog channel trailer interface, then into the local interface box, the baseband signals are finally input into the audio matrix by converting the MADI card to the RAVENNA card; the audio peripheral digital output and the video device digital output are connected into the digital channel trailer interface, the digital channel trailer interface is connected into the audio matrix directly via the active digital audio distributor; the audio peripheral device is also connected into the audio matrix, and the audio matrix is connected into the recording hard disk via the audio workstation.

[0018] The sound source and sound collecting equipment can widely collect various sounds on the spot, providing rich material sources for subsequent audio processing; the signal input item can receive audio signals from different equipment, ensuring that the system can be efficiently connected with external equipment; the sound distribution equipment can reasonably distribute analog audio signals and digital audio signals; the signal conversion centralized output is output by the local interface box; the audio matrix, as the core scheduling equipment of the system, is responsible for unified scheduling and processing of all input audio signals according to the needs of post-production, ensuring stable transmission and efficient processing of signals, and finally transmitting the audio signals to the audio workstation; after receiving the audio signals transmitted by the audio matrix, the audio workstation converts the audio signal processing of each channel into a post-production audio track device, and performs track recording through connection with a recording computer; the recording computer can store each sound source in a lossless and unprocessed state in each audio track, providing high-quality audio materials for post-production; the recording hard disk is used to store the recorded audio files, which are recorded by the recording computer and stored in the recording hard disk, for convenient calling and editing by post-production personnel at any time.

[0019] Through the track recording of the recording computer, the originally recorded sound source materials obtained by the video recorder are replaced by track recording, the required sound source materials are obtained without the original video recorder, and the audio signals required for post-production are connected to the audio workstation through the audio matrix, and then obtained by track recording by the recording computer connected with the audio workstation, so that the post-production personnel can arbitrarily extract the required sound source without considering the inconvenience caused by various treatments of the sound source due to the content requirements of the relay. The specific implementation steps are as follows:

[0020] (1) Ensure that the connection of each system line in the 4K ultra-high-definition transmission vehicle is correct;

[0021] (2) Ensure normal power supply;

[0022] (3) According to the needs, place multiple microphones and other sound collecting equipment at corresponding positions in the venue;

[0023] (4) Connect the sound collecting equipment according to the type of the equipment to the corresponding interface at the tail of the 4K ultra-high-definition transmission vehicle;

[0024] (5) Ensure that all input audio signals are finally connected to the audio matrix for unified scheduling;

[0025] (6) Connect the audio matrix to the audio workstation;

[0026] (7) Turn on the audio workstation and the recording software;

[0027] (8) Select the input source as the corresponding interface in the software;

[0028] (9) Add input configuration in the audio connection;

[0029] (10) Add the corresponding number of audio tracks in the audio track area;

[0030] (11) Configure the audio track and the input channel;

[0031] (12) Determine the recording time;

[0032] (13) Start recording;

[0033] (14) Determine the end time of recording;

[0034] (15) End recording and save the recording result;

[0035] (16) Export the audio file for post-editing of the corresponding personnel.

[0036] Ensure that the 4K ultra-high-definition transmission vehicle system line connection is correct, which is the basis for the normal operation of the system. Only the correct connection of the line can ensure the stable transmission of the audio signal; stable power supply is the key guarantee for the operation of the system, and any power problem may cause system failure or data loss. According to the requirements, the sound collecting equipment is placed at the corresponding position in the field, and the reasonable layout of the sound collecting equipment can ensure the collection of high-quality audio signals and provide rich materials for post-production. The sound collecting equipment is connected to the corresponding interface at the tail of the 4K ultra-high-definition transmission vehicle according to the type of the equipment. The accurate connection method can ensure the smooth transmission of the audio signal, avoid signal interference and loss, and ensure that all input audio signals are finally connected to the audio matrix for unified scheduling. The analog audio signal enters the passive audio distributor through the tail analog interface, and then enters the local interface box and finally enters the audio matrix. This process needs to be operated strictly according to the technical specifications to ensure the conversion and transmission quality of the signal. The active digital audio distributor can accurately distribute the digital audio signal to ensure the integrity and stability of the signal. The audio peripheral device signal can be directly transmitted to the audio matrix, which improves the integration and efficiency of the system. The audio matrix and the audio workstation are connected to realize the key step of audio signal processing and sub-track recording, which ensures that the audio matrix can accurately transmit the scheduled audio signal to the audio workstation. The recording software is the core tool for audio sub-track recording, which needs to ensure its normal operation and correct setting. In the software, select the input source as the corresponding interface, select the correct input source according to the actual situation, ensure that the audio signal from the audio matrix can be received, add input configuration in the audio connection, and reasonably configure the input audio signal to meet the needs of post-production. According to the actual needs, add the corresponding number of audio tracks in the audio track area, so that different sound sources can be stored in different audio tracks. Configure the audio track and the input channel to ensure that each audio track corresponds to the correct input channel and ensures the accurate recording of the audio signal. According to the production plan and actual needs, determine the recording time, including the start time and duration of audio recording. After everything is ready, start the recording software for audio recording, strictly follow the plan to determine the end time of recording, end the recording and save the recording result. After the recording is completed, save the recording result in time to prevent data loss, export the audio file for the post-editing of the corresponding personnel, export the recorded audio file and provide it to the post-production personnel for further editing and processing. This set of system does not pass through the sound console, so it does not affect the input audio signal and does not affect the original live broadcast process and the required audio.

[0037] (Three) Beneficial effects

[0038] This utility model provides an audio multitrack production system based on a 4K ultra-high-definition broadcast van, including an audio source and sound receiving equipment, signal input items, audio splitting equipment, signal conversion centralized output equipment, audio track equipment, and storage equipment. Through the separate recording of each track by the recording computer, each audio source on site is stored separately in each audio track in a lossless and unprocessed state. Post-production personnel can extract the audio source they need as needed without worrying about the inconvenience caused by various processing of the audio source due to the requirements of the broadcast content. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the system. Detailed Implementation

[0040] The following will refer to the appendix in the example of this utility model. Figure 1 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] An audio multitrack production system based on a 4K ultra-high-definition broadcast van includes an audio source acquisition device and an audio signal source, a signal input item, an audio signal distribution device, a signal conversion centralized output device, an audio track device, and a storage device. The audio source acquisition device and the audio signal source are communicatively connected to the signal input item and the signal conversion centralized output device. The signal input item is communicatively connected to the audio signal distribution device. The audio signal distribution device is communicatively connected to the signal conversion centralized output device. The signal conversion centralized output device is communicatively connected to the audio track device. The audio track device is communicatively connected to the storage device.

[0042] The audio source acquisition equipment and audio signal sources include audio peripheral devices, analog audio signals, digital outputs of audio peripheral devices, and digital outputs of video devices; signal input items include analog channel rear-end interfaces and digital channel rear-end interfaces; audio signal distribution equipment includes passive audio distributors and active digital audio distributors; signal conversion and centralized output equipment includes a local interface box and an audio matrix; the audio track device is an audio workstation; and the storage device is a recording hard disk. Analog audio signals are connected to the passive audio distributor via the analog rear-end interface, then to the local interface box, and finally input to the audio matrix; digital outputs of audio peripheral devices and digital outputs of video devices are connected to the digital channel rear-end interface, which is then connected directly to the audio matrix via the active digital audio distributor; audio peripheral devices are also connected to the audio matrix, which is then connected to the recording hard disk via the audio workstation.

[0043] The specific implementation steps are as follows:

[0044] (1) Ensure that the 4K ultra-high-definition transmission vehicle system line connection is correct;

[0045] (2) Ensure normal power supply;

[0046] (3) According to the demand, place multiple microphones and other sound collecting equipment at the corresponding positions in the venue;

[0047] (4) Connect the sound collecting equipment according to the equipment type to the corresponding interface at the tail of the 4K ultra-high-definition transmission vehicle;

[0048] (5) Ensure that all input audio signals are finally connected to the audio matrix unified scheduling;

[0049] (6) Connect the audio matrix to the audio workstation;

[0050] (7) Open the audio workstation and recording software;

[0051] (8) Select the input source in the software as the corresponding interface;

[0052] (9) Add input configuration in the audio connection;

[0053] (10) Add the corresponding number of audio tracks in the audio track area;

[0054] (11) Configure the audio track and input channel;

[0055] (12) Determine the recording time;

[0056] (13) Start recording;

[0057] (14) Determine the end time of recording;

[0058] (15) End recording and save the recording results;

[0059] (16) Export the audio file for post-editing by the corresponding personnel.

[0060] Working principle: The system includes audio source collecting equipment and audio signal source, signal input item, audio signal distribution equipment, signal conversion centralized output equipment, audio track equipment and storage equipment. Through the split track recording of the recording computer, the original recording obtained by the video recorder is changed to split track recording to ensure that the audio signals required in the later period are connected to the audio workstation through the audio matrix, and then the recording computer connected with the audio workstation is used for separate split track recording to ensure that each audio source in the field is stored in each audio track in a lossless and unprocessed state. The post-editing personnel can extract the required audio source without considering the inconvenience caused by various treatments of the audio source due to the content requirements of the broadcast.

[0061] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An audio multi-track production system based in a 4K ultra-high-definition OB van, characterized by, It comprises a sound source collecting device and an audio signal source, a signal input item, an audio signal distribution device, a signal conversion and centralized output device, an audio track device and a storage device; the sound source collecting device and the audio signal source are in communication connection with the signal input item and the signal conversion and centralized output device, the signal input item is in communication connection with the audio signal distribution device, the audio signal distribution device is in communication connection with the signal conversion and centralized output device, the signal conversion and centralized output device is in communication connection with the audio track device, and the audio track device is in communication connection with the storage device.

2. The audio multi-track production system in a 4K ultra-high-definition OB van according to claim 1, wherein, The sound source collecting device and the audio signal source comprise a live sound pickup device, an audio peripheral device and an embedded audio output interface of a video device; the signals generated or output by these source devices comprise analog audio signals and digital audio signals.

3. The audio multi-track production system in a 4K ultra-high-definition OB van according to claim 1, wherein, The signal input item comprises an analog channel trailer interface and a digital channel trailer interface.

4. The audio multi-track production system in a 4K ultra-high-definition OB van according to claim 1, wherein, The audio signal distribution device comprises a passive audio distributor for distributing analog audio signals and an active digital audio distributor for distributing digital audio signals.

5. The audio multi-track production system in a 4K ultra-high-definition OB van according to claim 1, wherein, The signal conversion and centralized output device comprises a local interface box and an audio matrix.

6. The audio multi-track production system in a 4K ultra-high-definition OB van according to claim 1, wherein, The audio track device is an audio workstation.

7. The audio multi-track production system in a 4K ultra-high-definition OB van according to claim 1, wherein, The storage device is a recording hard disk.

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