The Bruel & Kjaer 2811 is an 8-channel multiplexer designed for advanced audio testing and measurement applications. It performs sequential scanning of multiple input channels, enabling automated routing of audio signals from up to 8 distinct sources to a single measurement instrument. Integrated with the 4219 Artificial Voice Module, the system simulates human speech for objective, repeatable evaluation of speech intelligibility and acoustic characteristics. This combination addresses critical requirements in telecommunications equipment development and acoustic validation of audio devices, delivering precise performance assessment in laboratory and production environments.
## Technical Specifications
• Number of Channels: 8
• Channel Operation: Sequential scanning of input channels
• Input Configuration: Accepts audio inputs from 8 distinct sources
• Output Configuration: Single output for sequential scanning to connected measurement instrument
• 4219 Artificial Voice Module: Simulates human speech for acoustic testing
• Signal Type: Audio frequency signals within the operational range of associated measurement equipment
• Control Interfaces: Compatible with remote control and automated test sequence integration
## Key Features
• Multiplexed input architecture enabling efficient testing of multiple signal sources
• Artificial voice simulation for telecommunications and audio device validation
• Automated signal routing for high-throughput test sequences
• Integration with Bruel & Kjaer measurement ecosystems
## Typical Applications
• Microphone and loudspeaker testing
• Mobile phone and headset acoustic validation
• Hearing aid performance assessment
• Audio transducer characterization
• Telecommunications equipment development
## Compatibility & Integration
Designed to interface with compatible Bruel & Kjaer audio measurement instruments and analyzers. Supports integration into automated test setups through remote control interfaces.
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