Audio Recorder Timecode Slate With Dual ADC Sync Control
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Solution Overview
Problem
Existing audio recording systems face challenges in maintaining accurate synchronization between audio and video recordings due to timecode slippage and limited dynamic range in analog-to-digital conversion, often requiring manual adjustments and external slate devices for synchronization.
Innovation Solution
The system incorporates an audio recorder with an integral slate display and automatic gain adjustment through dual analog-to-digital conversion systems, using a timer to switch between samples and generate SMPTE timecode for synchronization, eliminating the need for external slates and reducing timecode generator slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent timecode generators are used in audio and video recording systems, then each component can operate independently, but timecode slippage occurs between components
Solution Approach 1:
The patent merges the timecode generation function into a single master timecode generator that provides timecode to both audio and video recording systems. This eliminates multiple independent timecode generators and their associated slippage problems, while maintaining the ability of audio and video components to operate independently in terms of their recording functions.
Solution Approach 2:
The patent introduces a master timecode generator as an intermediary component that serves as a common time reference for both audio and video systems. This intermediary provides synchronized timecode signals to multiple components, ensuring they remain synchronized without requiring direct connection between audio and video recorders.
2Device complexity
If a single analog-to-digital conversion system is used, then the system is simpler, but the dynamic range is limited
Solution Approach 1:
The patent segments the analog-to-digital conversion process into multiple parallel conversion systems, each handling different portions of the audio signal spectrum or different gain levels. This segmentation allows each converter to operate within its optimal range while collectively providing extended dynamic range coverage.
Solution Approach 2:
The patent extends the dynamic range by adding another dimension to the conversion system through multiple conversion paths with different gain structures. Instead of relying on a single conversion system to handle the entire dynamic range, the system uses multiple conversion systems operating in parallel, effectively expanding the usable dynamic range through dimensional expansion of the conversion architecture.
3Ease of operation
If manual gain adjustments are made using knobs and slides, then the user can control amplification, but the process requires manual intervention and is time-consuming
Solution Approach 1:
The patent implements automatic gain control systems that self-adjust amplification levels without requiring manual intervention. The system automatically monitors signal levels and adjusts gain accordingly, eliminating the need for operators to manually turn knobs or move slides, thereby saving time while maintaining ease of operation through automated decision-making.
Solution Approach 2:
The patent employs feedback mechanisms where the system continuously monitors audio signal levels and automatically adjusts amplification based on real-time conditions. This feedback loop enables the system to maintain optimal gain levels dynamically without manual intervention, reducing the time required for gain adjustments while preserving user control through programmable parameters.
Data Source
AI summary
Improved systems and methods for processing and recording audio received from one or more wired or wireless devices. In one aspect, the dynamic range of an analog-to-digital conversion system is extended. In another aspect, processes for generating a timecode, displaying and/or freezing a timecode display, and displaying an electronic timecode slate. Displaying a timecode slate may include rotating the orientation of the timecode display one hundred and eighty degrees to allow the timecode display to appear upright to individuals and/or equipment viewing and/or recording same. Displaying a timecode slate may also include an audible tone for synchronization of audio and video recordings.