EXFO EXpert IPTV Test Tools (FTB-200v2) - Manual (Page 36)

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Definitions:
Audio Audio
Description
Information IP Source Address NA The stream source IP address
IP Destination Address NA The stream destination IP address
Source Port NA The stream source TCP/UDP port number
Destination Port NA The stream destination TCP/UDP port number
Type NA The stream type‐ audio, video, voice
Protocols NA The stream (s) transport protocols
Codec Type NA The audio codec type for the audio stream
Number of Channels NA The number of audio channels encoded in the audio stream
Reference Clock Hz The reference clock (RTP timestamp or MPT2S PCR/PTS) rate,
in Hz
Audio
Bandwidth
Metrics Average Audio
Bandwidth Kbit/s Average audio bandwidth in bits/second, excluding transport
packet overhead,
FEC, and retransmissions
Peak Audio Bandwidth Kbit/s Peak audio bandwidth in bits/second, excluding transport
packet overhead, FEC,
and retransmissions.
Average Receive
Bandwidth Kbit/s Average bandwidth of transport packets received, in
bits/second.
Peak Receive Bandwidth Kbit/s Peak bandwidth of transport packets received, in bits/second
Audio
Perceptual
Quality
Metrics Minimal MOS 1.0‐5.0 Minimal Audio Mean Opinion Score, a 1‐5 score that
measures the impact of the audio
codec, bit rate, sample rate, and packet loss on audio quality.
Average MOS 1.0‐5.0 Average Audio Mean Opinion Score, a 1‐5 score that
measures the impact of the audio
codec, bit rate, sample rate, and packet loss on audio quality.
Maximum MOS 1.0‐5.0 Maximum Audio Mean Opinion Score, a 1‐5 score that
measures the impact of the audio
codec, bit rate, sample rate, and packet loss on audio quality.
Instantaneous MOS 1.0‐5.0 Instantaneous Audio Mean Opinion Score, a 1‐5 score that
measures the impact of the audio codec, bit rate, sample
rate, and packet loss on audio quality.
MOS Below Failed
Threshold 0‐100% The proportion of the stream duration where the MOS‐A
value falls below the
configured analysis threshold
Degradation Factors:
Loss, Discard, Codec,
Recency 0‐10 Severity of perceptual quality degradation caused by (each
of) the following
factors: packet loss, packet discard (jitter), codec distortion,
and the recency of
burst packet loss.
Tab Category Metric Name Range Description