Speech Speed Conversion Buffer Management
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Solution Overview
Problem
Existing speech speed conversion devices struggle to perform effective speech speed conversion on long-time automatic answering voices when the signal memory has a small capacity, leading to delays and discomfort in voice reception, as they run out of idle capacity and fail to maintain continuous conversion.
Innovation Solution
A communication apparatus equipped with a speech speed conversion device that includes a compressor, automatic answering telephone message preserver, expander, speech speed converter with a voice buffer, and a monitor that temporarily stops expanding the voice when the voice buffer's idle capacity approaches a lower limit, allowing for continuous speech speed conversion even with a small signal memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If speech speed conversion is performed continuously on long-time automatic answering voice, then the speech speed conversion function is maintained, but the idle capacity of the signal memory is exhausted
Solution Approach 1:
The patent implements dynamic control of the speech speed conversion process by monitoring the idle capacity of the signal memory in real-time. When the idle capacity falls below a threshold, the conversion is temporarily suspended and resumed when capacity is sufficient, making the system adaptive to memory conditions rather than operating statically
Solution Approach 2:
The patent employs periodic pausing and resuming of the speech speed conversion process based on signal memory capacity monitoring. This periodic action allows the system to operate in cycles of conversion and pause, preventing continuous memory exhaustion while maintaining overall conversion functionality over time
2Reliability
If the capacity of the signal memory is increased to prevent idle capacity exhaustion, then speech speed conversion can be maintained, but the costs rise
Solution Approach 1:
The patent changes the operational parameters of the speech speed conversion process dynamically based on available memory capacity. By adjusting the conversion rate, pause duration, and resumption timing according to memory conditions, the system achieves reliable conversion without requiring increased memory capacity
Solution Approach 2:
The system monitors its own signal memory capacity and autonomously adjusts the speech speed conversion operation accordingly. This self-service mechanism allows the system to manage its own resources effectively without external intervention or additional hardware capacity
3Quantity of substance
If speech speed conversion is suspended when signal memory idle capacity is low, then memory exhaustion is prevented, but the user experiences discomfort due to voice speed changes
Solution Approach 1:
The patent monitors signal memory capacity in advance and proactively pauses the speech speed conversion before idle capacity is completely exhausted. This preliminary action prevents memory overflow and ensures smooth resumption of conversion without interruption to the user experience
Data Source
AI summary
In a communication apparatus, an encoder compresses telephone call voice which is transmitted from another communication apparatus. A voice accumulator preserves the telephone call voice, which is compressed by the encoder, as a message. A decoder expands the telephone call voice which is preserved in the voice accumulator. A signal memory temporarily maintains the telephone call voice which is expanded by the decoder. A speech speed convertor performs speech speed conversion on the telephone call voice, which is read from the signal memory, and outputs resulting voice from a speaker. A memory monitor temporarily stops to expand the telephone call voice in the decoder in a case where the memory monitor determines that an idle capacity of the signal memory approaches a predetermined lower limit value.