quality analysis through nomad
DESCRIPTION
MOS value comparison of different devicesTRANSCRIPT
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QUALITY ANALYSIS OF AUDIO/VIDEO CALL THROUGH JIO
CLIENT USING NOMAD TOOL
Test Set up Configuration in NOMAD Tool :
Voice Quality Testing
Codec: AMR-WB Codec: PCMA
Audio Interface for Channels: High Definition Audio Interface for Channels: Narrowband Sampling rate: 48k Hz Sampling rate: 8k Hz Scoring Model: POLQA Scoring Model: POLQA Microphone state: Disabled Microphone state: Disabled
Channel 1: input value= 215 Output value= 165 Channel 2: input value= 185 Output value= 165
Delay Measurement
Audio Interface Used for Channels: High Definition No of samples per cycle: 10 Sample spacing: 1000 Total no of cycles executed: 100 Calibration Values Channel 1: input value= 215 Output value= 165 Channel 2: input value= 215 Output value= 165
Devices Used
Android Device Used: Samsung s3 (Blue, White) iOS Devices Used: iPhone 5 (Black, White)
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NETWORK CONDITION WHILE TESTING
LTE
Serving cell: 98RSRP value range: -78 dB to -86 dBSINR value: 14-18CQI: 14-16Downlink MCS: 27Uplink MCS: 16 (22-24 is considered good)
Ping latency: 19 ms (minimum)
34 ms (average) 55 ms (maximum)
Wi-Fi
Signal strength of wi-fi signal while testing: -32 dB to -40 dB Devices attached with MiFi while testing : 2
Test Result Summary
OS combinationsAudio Video
MOS Delay MOS DelayCh1 to ch2 Ch2 to ch1 Ch1 to ch2 Ch2 to ch1
Android to Android(AMR-WB)
3.73 436 ms 440 ms 3.68 454 ms 463 ms
iOS to iOS(PCMA) 4.29 429 ms 426 ms 4.20 382 ms 379 msAndroid to iOS(AMR-WB) 4.05 373 ms 474 ms 3.57 564 ms 463 msiOS to Android(PCMA) 3.90 456 ms 372 ms 3.57 622 ms 608 ms
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Detail Test Report for MOS and Delay Measurement
1.ANDRIOD TO ANDROID AUDIO Call
Codec Negotiated : AMRWB
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2. Android to Android Video Call
Codec Negotiated : Audio (AMRWB), Video (H264)
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3. iOS to iOS Audio Call
Codec Negotiated : PCMA
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4. iOS to iOS Video Call
Codec Negotiated : Audio (PCMA), Video (H264)
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5. Android to iOS Audio Call
Codec Negotiated : Audio (AMRWB)
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6. Android to iOS Video Call
Codec Negotiated : Audio (AMRWB) , Video (H264)
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7. iOS to Android Audio Call
Codec Negotiated : Audio (PCMA)
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8. iOS to Android Video Call
Codec Negotiated : Audio (PCMA) , Video (H264)
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