What do the audio quality stats mean?

Your audio quality stats will be classified as red or green. Audio quality stats display the network level parameters such as Jitter, RTT, Packet Loss, and Audio Level. These are color-coded as green (good), yellow (average) and red (bad) based on industry-standard thresholds.

Metric

Good

Average

Bad

Jitter

<= 10ms

10ms - 30ms

>=30ms

Packet Loss

< 0.5%

0.5% - 0.9%

>= 0.9%

Audio Level

>-40dB

-80dB to -40dB

<-80dB

RTT

< 200ms

200ms - 300ms

> 300ms

The values for each of these metrics are displayed using percentiles. 

Reading audio quality stats

Statement 1: 30th percentile of jitter is 8m.

  • If all the jitter values captured on a call are sorted in ascending order, then 30% of these values are ≤ 8ms.
  • This equates the capture of each value with a unit of time in the call. It can also be read as 30% of overall call duration – not necessarily the first or the last 30% – has jitter ≤ 8ms.
  • Since percentiles indicate values sorted in ascending order, this also indicates that 100 -30 = 70% of call has jitter > 8ms.

Statement 2: 95th percentile of jitter is 32ms while all the lower percentiles are ≤30ms. 

  • 95% of the jitter values captured on the call, or 95% duration of the overall call, has jitter ≤ 32ms.
  • This falls in the bad range of jitter and will be color-coded in red. 
  • 100-95 = 5% of call has jitter ≥ 32ms. This is also in the “bad” range.

Statement 3: 99th percentile of jitter is 30ms.

  • 99% of call has jitter ≤30ms; therefore, 99% of call is not within the “bad” range. 
  • 100 - 99 = 1% of call has jitter >30ms, hence 1% of call is within the “bad” range.
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