Voice Quality Testing in the Lab

Overview

Voice quality testing in the lab is a fundamental practice that supports the development, deployment, and maintenance of effective communication systems. It ensures that users receive the best possible audio experience, which is essential in today's interconnected world.

Diverse devices, network and codecs add variability which can be replicated in the laboratory to ensure that communication systems deliver clear, reliable, and consistent audio performance. 

Opale Systems MultiDSLA is a comprehensive voice quality testing platform designed to deliver objective, standards-based assessments across various communication systems. Utilizing internationally recognized algorithms like PESQ and POLQA, it provides accurate and repeatable measurements, ensuring reliable evaluation

By simulating various network conditions and usage scenarios, Opale Systems MultiDSLA solution helps identify potential issues such as packet loss, jitter, and latency. This proactive approach enables engineers to address problems before they affect end-users.​

As a chipset OR DEVICE manufacturer

You will be interested to test voice quality in the lab to catch audio processing issues early such as codec handling, echo cancellation... as well as to ensure compatibility with networks and devices.

As aN operator or service provider

In order to ensure consistency in use experience, Voice Quality testing is necessary in the lab to validate new devices, services (like VoLTE/VoNR), transcoding, SIP signaling, and codec negotiation and software upgrades. 

Opale Systems helps by offering controlled, repeatable test environments that validate voice performance during device and service development life cycle.

Opale Systems enables operators to simulate network conditions, measure quality metrics, and ensure service compliance from the lab up to live voice network monitoring

OPALE SYSTEMS SOLUTION WITH MULTIDSLA 

Opale Systems MultiDSLA solution is a state of the art measurement system for Voice Quality Testing and Performance Assessment used by many organisations as the reference measurement in core technology development applications.

In addition to objective and undisputable voice quality scores such as PESQ & POLQA MOS, MultiDSLA offers smart analytics and key performance indicators to help you identify the root cause of distortions in the degraded voice signal:

• Network impairments : one-way delay, packet loss, jitter buffer behaviour and echo,
• Speech & Noise level,
• Codec distortion,
• Voice activity detector (VAD) performance,
• Call setup analysis,
• DTMF sequences,
• And many more!

 The connectivity with the device under test is done through software and hardware nodes which offers rich diversity of connectivity : analog line, handset, USB-C, SIP, Mobile.