Recording Device Trailing Sound Reproduction for Seamless Restart
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Solution Overview
Problem
Existing recording technologies face difficulties in seamlessly joining recorded contents before and after a stop, leading to inconsistencies in playback speed and timing, resulting in unnatural silences or premature restarts when recording is repeatedly stopped and restarted.
Innovation Solution
A recording device and method that includes a stop control unit which restarts recording after reproducing the trailing part of the recorded content before the stop, ensuring a smooth transition in playback speed and timing by reproducing a fixed or variable length of the trailing content, including silent or sounding parts, to maintain consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If recording is repeatedly stopped and restarted using conventional methods, then recording flexibility is improved, but joining accuracy of recorded contents deteriorates
Solution Approach 1:
The system performs preliminary actions by detecting the trailing sound before stopping recording, determining its length, and storing this information for later use. This preliminary detection and storage of sound characteristics enables accurate joining when recording is restarted, resolving the contradiction between recording flexibility and joining accuracy.
Solution Approach 2:
The system implements feedback by detecting the trailing sound, determining its length, and using this detected information to control the recording restart timing. The detected trailing sound length feeds back into the recording control mechanism, ensuring that recording restarts at the appropriate moment to achieve seamless joining, thus maintaining both flexibility and accuracy.
2Productivity
If recording restarts immediately after stop, then recording efficiency is improved, but playback smoothness deteriorates
Solution Approach 1:
The system performs preliminary detection of the trailing sound and determines its length before the recording actually restarts. This preliminary action allows the system to calculate the appropriate delay timing, enabling recording to restart efficiently while ensuring smooth playback by accounting for the trailing sound duration.
Solution Approach 2:
The system dynamically adjusts the recording restart timing based on the detected trailing sound length. Rather than using a fixed restart delay, the system adapts the restart timing to match the actual trailing sound characteristics, achieving both recording efficiency and playback smoothness through dynamic control.
3Measurement precision
If index mark is recorded for restart reference, then restart positioning is improved, but synchronization accuracy deteriorates
Solution Approach 1:
The system uses the trailing sound as an intermediary element between the index mark and the recording restart. By detecting the trailing sound length and using it to determine the restart timing, the system creates a smooth transition that connects the index mark positioning with the actual recording restart, preventing synchronization gaps and maintaining temporal continuity.
Solution Approach 2:
The system maintains continuity of useful action by ensuring that the recording restart seamlessly follows the trailing sound detection. The detected trailing sound length is used to maintain continuous temporal information, ensuring that the transition from index mark to recording restart is smooth and without gaps, thus preserving synchronization accuracy.
Data Source
AI summary
A recording device includes recording unit configured to perform recording; and stop control unit configured to stop the recording in accordance with a recording stop instruction and restarting the recording in accordance with a recording restart instruction. The stop control unit restarts the recording after reproducing a trailing part of a recorded content that is recorded before the stop.