Multitrack Recorder Track Type Consistency Management

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Solution Overview

Problem

Existing multitrack recorders lack a consistent track type management system, leading to inconsistencies between track types and audio data types, especially when tracks are switchable between monaural and stereo types, causing issues during operation cancellation and data restoration.

Innovation Solution

A multitrack recorder with a track type setting unit that allows tracks to be set as monaural or stereo, an operation cancel unit that stores and restores track-type changing and audio data operations, ensuring consistency by erasing and restoring audio data accordingly during UNDO processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If tracks are made switchable between monaural and stereo types to enhance user convenience, then adaptability is improved, but consistency between track type and audio data type deteriorates

Engineering Contradiction:

Improvetrack type flexibilityVSAvoiddata consistency

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary actions by storing the original track type and audio data type information in the operation history before any track type conversion occurs. This allows the system to restore both the track type and audio data type to their original consistent states when an UNDO operation is executed, preventing consistency loss.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by monitoring and recording the relationship between track type and audio data type during operations. The operation history stores paired information about track type changes and corresponding audio data, enabling the system to detect and restore consistency when operations are canceled.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If operation cancel function restores audio data to previous state, then ease of operation is improved, but consistency between track type and audio data type deteriorates

Engineering Contradiction:

Improveoperation cancellationVSAvoiddata consistency

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system merges the restoration of track type and audio data type into a single unified operation. When an UNDO operation is performed, both the track type and the audio data stored on that track are restored together to their previous states, ensuring that consistency is maintained while providing ease of operation.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The operation history storage mechanism serves multiple functions: it records both audio data operations and track type changing operations, and enables restoration of both types of data. This multi-functional approach ensures that consistency is maintained across different operation types while providing a unified ease of use interface.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8953419B2Multitrack recorder

Publication Date: 2015.02.10 TEAC CORP

AI summary

A multitrack recorder capable of setting one track or more to a monaural type or a stereo type has a storage unit that stores a history of track-type changing-and-setting operations and operations entailing erasure or changing of audio data stored on each track and that stores specifics of the track-type changing-and-setting operations and the audio data erased or changed along with performance of operations in association with each operation, and a change unit that changes audio data stored in each track, and a type of the track, to audio data that were stored in each track, and a type of the track, before performance of a specified operation.