Local Voice Input Pipeline for Offline Assistant Setup

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Solution Overview

Problem

Existing voice-assisted media playback systems face limitations in offline functionality, requiring cloud-based voice assistant services for setup and operation, which can be inconvenient, unreliable, and raise privacy concerns.

Innovation Solution

Implementing a local voice input pipeline in networked microphone devices that allows offline voice control and setup, enabling local processing of voice inputs without the need for cloud-based services, through pre-configured audible prompts and keyword recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cloud-based voice assistant services are used for setup and operation, then voice control functionality is enabled, but system reliability deteriorates when cloud services are unavailable

Engineering Contradiction:
Improvevoice control functionalityVSAvoidsystem operation reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The voice assistant functionality is segmented into two independent parts: cloud-based services for enhanced capabilities and local offline processing for basic operations. The local voice input pipeline can independently process voice commands without cloud connectivity, ensuring system reliability while maintaining ease of operation through multiple operational modes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary configuration by pre-configuring audible prompts and local voice processing capabilities before cloud service dependency is needed. This allows the device to be set up and operated offline initially, with cloud services optionally enhancing functionality later without being a mandatory prerequisite.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If cloud-based voice processing is used, then advanced voice assistant capabilities are provided, but user privacy deteriorates due to voice data transmission

Engineering Contradiction:
Improvevoice assistant capabilitiesVSAvoiduser privacy risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system introduces a local voice input pipeline as an intermediary layer between the user and cloud services. This local pipeline can process and understand basic voice commands locally, acting as a mediator that reduces the need to transmit all voice data to the cloud, thereby protecting user privacy while still enabling advanced capabilities when cloud processing is utilized.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements different processing qualities at different locations: basic voice recognition and processing occurs locally on the device to protect privacy, while advanced capabilities can leverage cloud-based processing when needed. This local quality approach ensures that sensitive operations remain local while maintaining access to sophisticated features.

Inventive Principle:
Principle #3Local quality

3Reliability

If offline voice processing is implemented, then system reliability is improved, but device complexity increases

Engineering Contradiction:
Improveoffline operation reliabilityVSAvoidprocessing pipeline complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system extracts only the essential voice processing components needed for offline operation into a dedicated local voice input pipeline. By taking out only the necessary elements (keyword recognition, basic command processing, audible prompt generation) rather than implementing a complete cloud-based system locally, the solution achieves offline reliability without excessive device complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20260112364A1Offline Voice Control
Publication Date: 2026.04.23 SONOS INC
  • US20260112364A1 patent drawing
  • US20260112364A1 patent drawing
  • US20260112364A1 patent drawing

AI summary

As noted above, example techniques relate to offline voice control. A local voice input engine may process voice inputs locally when processing voice inputs via a cloud-based voice assistant service is not possible. Some techniques involve local (on-device) voice-assisted set-up of a cloud-based voice assistant service. Further example techniques involve local voice-assisted troubleshooting the cloud-based voice assistant service. Other techniques relate to interactions between local and cloud-based processing of voice inputs on a device that supports both local and cloud-based processing.