ACR / MUSHRA / SAMVIQ Test Interface
Certainly the most powerful tool to perform subjective assessment tests of video and/or audio quality.
Available in English, French, Chinese, Hindi, Spanish, Portuguese, Italian, German, Arabic, Korean, Japanese and Dutch.
+ 1 language to customize.
ACR / MUSHRA / SAMVIQ Test Interface is a useful tool to perform subjective audio and/or video quality testing.
Overview
Since quality is a subjective notion, subjective tests with human observers (or human listeners for audio) are the most precise way to measure quality. These tests require a special protocol to collect the votes of the observers (or listeners for audio), like:
- ACR (Absolute Category Rating) for subjective video quality assessment
- MUSHRA (MUltiple Stimuli with Hidden Reference and Anchor) for subjective audio quality assessment
- SAMVIQ (Subjective Assessment Methodology for VIdeo Quality) for subjective video quality assessment
ACR tests
Therefore, special software must be used to present the video files to the observers (or the audio files to the listeners) and collect their votes. That's the goal of ACR Test Interface which enables to:
- Load and sort lists of video and/or audio files
- Play video files in a window, in full screen mode or on a selectable device (video rendering card)
- Play audio files on a selectable device (audio card)
- Collect observers votes on a scale that you'll define
- Filter subjective results (using methods based on linear correlation or on standard deviation)
- Save observers votes in text and/or data files
- Compute the mean subjective quality scores: MOS (Mean Opinion Score) and DMOS (Differential Mean Opinion Score)
MUSHRA and SAMVIQ tests
During MUSHRA tests, a human listener can compare up to 9 audio samples (for example: 1 reference version and up to 8 distorted versions).
During SAMVIQ tests, a human observer can compare up to 9 video samples (for example: 1 reference version and up to 8 distorted versions).
Options
ACR / MUSHRA / SAMVIQ Test Interface enables to use the multimedia devices installed on your PC (like video rendering cards and audio rendering cards).
Conclusion
ACR / MUSHRA / SAMVIQ Test Interface cuts cost of subjective testing.
Indeed, instead of using a dedicated hardware which is often expensive, ACR / MUSHRA / SAMVIQ Test Interface is a software only solution that enables you to use normal PCs.Note: A fast storage (SSD) is recommended to play uncompressed videos, especially for HD or UHD/4K videos.