TestDevLab A/V LabTestDevLab A/V Lab

Audio Innovations

Noise suppression testing

Is background noise affecting your call quality? Noise suppression testing evaluates how well a system reduces unwanted background noise and maintains speech clarity. Make sure your app delivers high-quality audio—no matter the environment.

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Box displaying frame rate scores with 4% packet loss: 12.5 in January, 15.6 in February, and 20.1 in March.

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Desk with various network simulation devices.
Box displaying frame rate scores with 4% packet loss: 12.5 in January, 15.6 in February, and 20.1 in March.

The value

Keep users engaged by optimizing noise suppression

Background noise—traffic, office chatter, keyboard typing—can ruin quality in voice and video calls. If your noise suppression algorithm isn't optimized, users may struggle with unclear audio, leading to frustration and reduced call effectiveness. Identify and fix issues before they escalate.

  • Reduce unwanted noise
  • Maintain voice clarity
  • Meet industry standards

How it works

Our noise suppression testing process

Our noise suppression testing process ensures clear voice communication by assessing how effectively your application removes unwanted sounds. We simulate real-world environments across various devices to verify reliable noise suppression in any scenario.

  1. Simulating background noise

    We start off by playing specific background noise samples, like traffic or office sounds, on different hardware setups, while the speaker talks.

  2. Using noise suppression algorithms

    Next, we use noise suppression algorithms, like spectral subtraction and machine learning, to distinguish speech from noise.

  3. Evaluating speech quality

    We measure speech quality and noise suppression using DNSMOS scores, providing objective data on clarity and effectiveness across noise conditions.

  4. Performing subjective tests

    We also conduct subjective noise suppression tests that follow ITU-T P.835 standards to assess real-world user experiences.

  5. Utilizing test automation

    Finally, we use test automation where possible to streamline testing across multiple noise conditions, providing faster, repeatable results for key factors like signal-to-noise ratio (SNR).

Various audio applications and devices that benefit from noise suppression testing, from smartphones to professional recording equipment.

Coverage

Improve audio quality across all apps and environments

Poor noise suppression leads to muffled voices, frustrated users, and bad reviews. Don't lose users over background noise and disruptions. Noise suppression testing can be used for all types of apps that rely on high-quality audio.

  • Real-time communications
  • Video conferencing
  • Streaming services
  • Recording & Editing Apps
  • Speech Recognition Apps
  • AI voice agents
  • Security & Monitoring Apps
  • Entertainment & Gaming Apps
  • Smart Home Apps
  • DSPs

Deliver the quality your users deserve!

Join world-class companies in paving the way for quality audio and video experiences.

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