Multichannel Audio Matrix Transmission via Digital Conversion
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Solution Overview
Problem
Current systems for transmitting multichannel audio matrices across global networks are costly, inefficient, and unable to maintain broadcast quality, especially during remote productions where equipment and staff limitations hinder high-quality live broadcasts.
Innovation Solution
A system and method that captures audio from a local source, converts it to digital format, encodes, transmits over a network, decodes, and converts back to analog for mixing and broadcasting, allowing for remote processing and mixing using specialized equipment without the need for costly local infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If audio is captured and processed locally at the venue using traditional front-of-house systems, then the audio can be mixed for the live audience, but the equipment and labor costs are high and the quality is limited by the venue's acoustic environment
Solution Approach 1:
The patent introduces an intermediary system consisting of digital audio workstations, audio interfaces, and mixing software that acts as a mediator between the audio sources and the final broadcast output. This intermediary digital processing layer enables high-quality audio mixing remotely without requiring complex physical equipment at the venue, resolving the contradiction between audio quality and equipment complexity
Solution Approach 2:
The patent replaces the traditional mechanical analog audio processing system with a digital audio processing system. By substituting physical mixing consoles, analog signal paths, and on-site equipment with digital audio workstations and software-based mixing, the system achieves superior audio quality while reducing the complexity and cost of equipment and staff requirements
2Device complexity
If the front-of-house PA system mix is used for broadcast, then equipment and labor costs are reduced, but the production quality decreases due to acoustic limitations and lack of discrete mixing
Solution Approach 1:
The patent segments the audio mixing process into separate discrete channels for different instruments and audio sources. Instead of using a single integrated front-of-house mix, the system creates separate digital audio tracks for guitars, drums, vocals, and other instruments, allowing independent processing and mixing of each element. This segmentation enables high-quality broadcast mixing while using simplified equipment
Solution Approach 2:
The patent creates digital copies of the audio signals from various sources and processes these copies separately through digital audio workstations. By working with digital copies rather than the original analog front-of-house mix, the system can produce high-quality broadcast audio without requiring complex physical equipment or staff at the venue
3Device complexity
If remote audio processing is implemented without proper digital transmission infrastructure, then equipment costs are reduced, but audio quality and reliability deteriorate
Solution Approach 1:
The patent employs universal digital audio interfaces and standardized protocols that can process and transmit multiple audio channels simultaneously. The digital audio workstation system serves multiple functions including recording, mixing, processing, and transmission across various network infrastructures, maintaining reliability while reducing local infrastructure requirements
Solution Approach 2:
The patent utilizes parameter changes in digital signal processing, including sample rate conversion, bit depth adjustment, and compression ratios, to optimize audio quality for different transmission conditions. By dynamically adjusting these parameters, the system maintains reliable broadcast quality across varying network infrastructures without requiring complex local equipment
Data Source
AI summary
A system and method for transmitting at least one multichannel audio matrix across a global network is shown and described. The method for transmitting at least one multichannel audio matrix across a global network begins by capturing audio from a production source. The captured audio is then converted from an analog format to a digital format. The digital audio may then be encoded using an audio codec. The audio is sent to a network and received at a second location. The second location uses a specialized computing device to ensure the audio is properly received. If the audio was encoded, it is now decoded. Once decoded if needed the audio is converted back to analog format. This will allow for the audio to be mixed on a mixing device.