Quality Analysis Through Nomad

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)

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

Detail Test Report for MOS and Delay Measurement

1.ANDRIOD TO ANDROID AUDIO Call

Codec Negotiated : AMRWB

2. Android to Android Video Call

Codec Negotiated : Audio (AMRWB), Video (H264)

3. iOS to iOS Audio Call

Codec Negotiated : PCMA

4. iOS to iOS Video Call

Codec Negotiated : Audio (PCMA), Video (H264)

5. Android to iOS Audio Call

Codec Negotiated : Audio (AMRWB)

6. Android to iOS Video Call

Codec Negotiated : Audio (AMRWB) , Video (H264)

7. iOS to Android Audio Call

Codec Negotiated : Audio (PCMA)

8. iOS to Android Video Call

Codec Negotiated : Audio (PCMA) , Video (H264)