Bug 242979

Summary: Web Inspector: macOS13,Safari 16, VOIP with internal microphone cannot capture normal voice volume
Product: WebKit Reporter: yanzyang
Component: WebRTCAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: simon.fraser, webkit-bug-importer, wljray, youennf
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: Mac (Apple Silicon)   
OS: Other   
Attachments:
Description Flags
Safari 16, VOIP with internal microphone cannot capture normal voice volume
none
MacOS and Safari Version none

Description yanzyang 2022-07-20 20:28:02 PDT 
Created attachment 461070 [details]
Safari 16, VOIP with internal microphone cannot capture normal voice volume

OS version: MacOS 13 Beta 3 (22A5295i)
Safari version: Safari 16.0 (18614.1.19.1.5)

issue Description:
Join WebEx meeting client using Safari 16.0, audio cannot be captured normally and other user cannot hear voice.

Then use WebRTC Sample: https://webrtc.github.io/samples/src/content/getusermedia/volume/ to check audio stream volume， normal Speak voice cannot be capture (the sample display volume is 0.00). And if using very loud voice and near device, the volume can be get, but volume is very small, about is 0.01)

(We have recorded one video for recording the case, you can check attachment)


BTW:1.In the same machine, Use Chrome/Firefox to test the internal microphone, the audio stream volume is normal.
2.Safari with an external microphone, the audio stream volume is also fine.
Comment 1 yanzyang 2022-07-20 22:30:27 PDT 
Created attachment 461074 [details]
MacOS and Safari Version
Comment 2 Radar WebKit Bug Importer 2022-11-10 04:27:45 PST 
<rdar://problem/102188061>
Comment 3 wljray 2022-11-14 01:07:27 PST 
the same bug。

if open Otter in Mac Safari（https://otter.ai/），and Start Record，Then Open VoIP APP。VoIP cannot capture my audio, and cannot capture others speak。

Then stop Otter Record，it's OK。Then start Otter Record，not OK。


Open VoIP APP，Then open otter，and Start Record，is same problem。

Other Browser WebApp（like Otter），same problem
Comment 4 youenn fablet 2022-11-15 01:48:09 PST 
@yanzyang, are you still experimenting this issue in the latest macOS release?

@wljray, it seems like it might be a different issue.

What you seem to experience if two competing apps are using VOIP at the same time.
At that point, there is an issue. Is that correct? Which macOS version have you tested?
I tried on an internal macOS 13 release, trying to capture audio by Safari and Safari Tech Preview concurrently. This seems to work for me.
Comment 5 Simon Fraser (smfr) 2023-01-24 16:45:12 PST 
What does the "Web Inspector" in the summary signify?
Comment 6 youenn fablet 2023-03-13 07:29:43 PDT 
I am marking this bug as configuration changed.
@yanzyang, please reopen if you can reproduce on latest macOS beta.