Solution for no-reference measurement and monitoring of perceived video quality, perceived audio quality, audio loudness, blockiness, blur, contrast, flatness, jerkiness, black frames, silences, saturations, video bitrate, audio bitrate
with dedicated perceived video quality metrics for HEVC (H.265), MPEG-4/AVC (H.264) and MPEG-2
Multi Audio Video Monitor (MAVM) is a precise and very flexible solution to measure and monitor audio video quality perceived by end-users (also called QoE: Quality of Experience).
MAVM produces perceived video quality scores expressed on a MOS (Mean Opinion Score) scale. MAVM's perceived video quality metrics are dedicated to HEVC (H.265), MPEG-4/AVC (H.264) and MPEG-2 video encoding formats. These video quality metrics have been optimized to produce quality scores which are highly correlated with human jugdments collected during subjective quality assessment tests in normalized conditions (ITU BT.500 and ITU BT.710).
MAVM enables to perform:
MAVM can process IP streaming, HDMI, SDI and audio/video files. MAVM uses "no reference" video and audio quality metrics. It means that when you want to measure the quality of a video, you only have to provide this video.
At start up, MAVM displays a small window which enables to enter the URL of the audio/video source (IP streaming, HDMI signal, SDI signal or file) and run the monitoring.
This window also enables to select the audio and video metrics to use.
MAVM can also be run from command line, with many available parameters. For example, monitoring starts automatically at start up if you use the parameter "-autostart".
When you click on the "Monitor" button (or if you use the command line parameter "-autostart"), la surveillance de qualité démarre.
Audio/video quality monitoring is performed in a borderless window, in order to be able to run several instances of Multi Audio Video Monitor in parallel.
MAVM includes different perceived video quality metrics:
MAVM also measures:
The measurements are made on the decoded audio waveforms and MAVM supports the most common audio formats.
MAVM can measure audio loudness according to international recommendations ITU BS 1770-2 and EBU R128. This loudness measurement computes 5 different values:
In background, MAVM permanently saves its measures in order to be able to generate monitoring reports. These reports are available in MAVM's web interface.
Indeed, MAVM includes its own web server. There is no need to install a separate server (like Apache): MAVM's web server is already fully included in the application.
This web server enables you to connect from anywhere and get the measurement results, statistics, curves and even quality analysis reports (in several formats).
During real time audio video quality monitoring, several display modes are available:
In the web interface, the curves (of video quality, audio quality, loudness, bitrate, blockiness, blur, contrast, jerkiness, etc.) can be drawn between two user-chosen dates and times. The curves can also be drawn in real time, permitting to remotely see MAVM's monitoring activity.
Thanks to its elaborate quality metrics and its design which enables it to run several times in parallel, MAVM is the ideal solution to monitor audio and video quality from several IP streams or several files under Windows.
Its borderless interface enables to easily create video walls (mosaics) able to display measures in real time (as curves, levels or values).