The Challenges of Testing Speech Controlled Audio Systems
Learn how to implement open loop tests for both playback and recording in a range of devices including smart speakers, automotive audio, robots, IoT devices and more in this practical seminar.
Open loop testing (testing devices where inputs and outputs are independent) enables many types of smart devices and their components to be tested in various formats and situations including:
- Smart speakers, smart watches and other smart devices
- Microphone arrays
- Speech recognition systems with microphones
- In-vehicle audio systems
- Audio devices/systems with no physical inputs or outputs
- Testing in noisy environments
We explain how to measure the same parameters as traditional loudspeakers, discussing such challenges as injecting and extracting response signals, time delays, and triggering the system using voice commands. We also demonstrate how to measure microphone array performance, speakerphone performance and more. Course content includes:
- Stimulating and capturing responses from a device where you don’t have direct access to the microphone or speaker (open loop testing).
- Delays, asynchronous stimulus / acquisition, and working with the ‘cloud’
- Testing with real world signals such as speech and music, and how to analyze results from these test stimuli
- Voice Recognition – key word spotting, wake word testing, directionality, and the effect of background noise on voice recognition performance
- Telephony – testing smart speakers for hands-free calling
Speakers /主讲人: Steve Temme, Listen, Inc. and Peter Wulf Andersen, GRAS.
Date & Locations /时间与地点: