MOS discrepany for Firefox #12
Description
Hi All,
I am currently working on a project to enable VoIP calling on our application. To gauge the quality of the call, I plan to use MOS (Mean Opinion Score) which is available out of the box with webrtc-issue-detector library. However, when I use this library on my application in Chrome(V120) I see the score varying somewhere between 3.5 to 4.1 based on internet connectivity . But when I test this in Firefox (V115), I see the score to be almost constant and the value does not go down below 4.4. I have also tried webrtc-adapter but it doesn't help
Example:
Network stats:
{"inboundStatsSample": {"avgJitter":0.001,"rtt":0,"packetsLoss":0},
"outboundStatsSample":{"avgJitter":0.019,"rtt":0,"packetsLoss":0}}
Inbound network score 4.404392390941931
Outbound network score 4.404375582089046
Network stats
{"inboundStatsSample":{"avgJitter":0.002,"rtt":0,"packetsLoss":0},
"outboundStatsSample":{"avgJitter":0.019,"rtt":0,"packetsLoss":0}}
Inbound network score 4.404392390941931
Outbound network score 4.404375582089046
Code:
const webRtcIssueDetector = new WebRTCIssueDetector({
onIssues: (issues) => issues.map((issue) => {
console.log('Issues type:', issue.type); // eg. "network"
console.log('Issues reason:', issue.reason); // eg. "outbound-network-throughput"
console.log('Stats:', issue.statsSample); // eg. "packetLossPct: 12%, avgJitter: 230, rtt: 150"
}),
onNetworkScoresUpdated: (scores) => {
console.log('Inbound network score', scores.inbound); // eg. 3.7
console.log('Outbound network score', scores.outbound); // eg. 4.5
console.log('Network stats', JSON.stringify(scores.statsSamples )); // eg. { inboundStatsSample: { avgJitter: 0.1, rtt: 30, packetsLoss: 8 }, ... }
},
});
Strange, but I have never seen the packetsLoss and rtt to be greater than 0 in Firefox
Looking forward for help..!! Thanks