Unable to reproduce this issue on reported chrome 71.0.3557.0 and latest chrome stable 69.0.3497.100 Using Windows 10 surface.
Steps:
---------
1. Launched reported chrome 
2. Navigated to youtube, soundcloud, spotify web player 
As we are able to hear the sounds 

@Reporter:Reporter: Can you verify this issue with fresh profile that is not having any extensions and apps or reset all the flags and also confirm that the issue is specific to chrome/ windows. Let us know whether issue still persists.
 
Thanks.!

Olga, can we rule out AudioStreams/Service/Process here?

rugnirtheviking@ - could you post here "variations" from chrome://version/?

Also could you confirm that Chrome appears in Volume Mixer and is not individually muted there?

Thanks!

Yes I can confirm that chrome is not muted in the sound mixer.
I am running a fresh install of chrome in the tests I am running, so no extentions or apps.

I have personally tested with internet and firefox on the same machine that encountered the issue, and found no similar problem.

Variations are as follows (read from chrome canary):
2c707b42-ca7d8d80
411b6d4e-3f4a17df
b7d3b6c2-3f4a17df
fe69e053-94941f92
9d7f502c-d5d68bac
d01ab0d3-75dfaed
16e0dd70-3f4a17df
66df3e9d-acb92ace
ebeb14fc-3f4a17df
b7e2524c-ca7d8d80
a6674cf-3fcacf88
da89714-4ad60575
64da5c1e-ca7d8d80
61832c80-3f4a17df
cc20827f-707e3d9b
9041608a-3f4a17df
5852bcb0-a75ab0e
c6c1fc26-3d47f4f4
6025934e-3f4a17df
c27fec31-2d5b6ed9
7c1bc906-86bf56d9
9def365c-f23d1dea
62138821-3f4a17df
47e5d3db-f23d1dea
125b7f68-9def3bd2
d442dfb7-ca7d8d80
9ca1387e-f23d1dea
41e765a5-f23d1dea
1149accc-3f4a17df
6557d030-f23d1dea
ab3d6cfd-3f4a17df
34d450b1-661b46ec
f75ce29e-f23d1dea
a582a1b8-ad75ce17
495970ba-ca7d8d80
7f7844ec-f9a429c5
3042ad4b-f23d1dea
31e1328a-27212adc
e56c5101-ad2fa222
44827ee5-3f4a17df
edbcf7c5-2d3ce014
5485fc4d-3d47f4f4
de47491b-33c3eba5
93731dca-4ea9d0e4
e111fcd-f23d1dea
41f007f9-41f007f9
9b4c4257-592e7888
43f62d3b-cf4f6ead
4ae380f4-f23d1dea
c992f345-ca7d8d80
3a0563a1-65222f0b
9e5c75f1-c9c9971c
6872f671-991e1e1
2594bdf4-ed9a47bf
6fa07eb4-ca7d8d80
4934552d-3f4a17df
7a5ba892-3f4a17df
d1cd70a5-88090246
4ea303a6-5a57feca
95876445-ca7d8d80
d92562a9-4d2fac87
fc369826-3f4a17df
7aa46da5-c946b150
67246da1-f23d1dea
cc54eb06-f23d1dea
58a025e3-36e97b2c
ad6d27cc-7075cd8
df072bba-9a6c5085
8576baf1-3f4a17df
f3ea30a0-3f4a17df
23496387-232b3cab
2e7f6029-3f349e7a
344833e9-473e8c2e
4bc337ce-a1f4f53d
caaf551e-7c7ea110
9a2f4e5b-556b4118
494d8760-52325d43
3ac60855-486e2a9c
f296190c-bca011b3
4442aae2-6bdfffe7
ed1d377-e1cc0f14
75f0f0a0-e1cc0f14
e2b18481-9d9eea77
e7e71889-4ad60575
f9e5da91-f23d1dea
5e60f31d-803f8fc4
6e3b857e-61c25c72
6a51bb09-ca7d8d80
b0ea13bc-f23d1dea
94e68624-f23d1dea
cc73f8a1-a3a14831
b4e8892d-f23d1dea
10a311eb-f23d1dea

Thank you rugnirtheviking@.

d01ab0d3-75dfaed is a control group of AudioService experiment, so it's not related.

Could you while playing audio:
Browse to chrome://media-internals and select the players tab.
Press "copy all to clipboard", then paste into a text file/doc. 
Then select the audio tab and do the same.
Attach/link the doc to the bug.


Thanks!

rugnirtheviking: to confirm what you wrote in the report, does this happen with Chrome stable as well? (version 69).

Yes, I can confirm this happens in chrome stable.
As of the latest chrome canary (71.0.3559.1) - this issue appears to have been resolved. Unfortunaetly, it's not clear exactly what, if anything, changed to cause this issue to start/stop

Any reason to think this is machine/model specific?

rugnirtheviking@ have you seen it since then? If yes - could you provide the info per #8. Otherwise I'm going to close it as Won't fix, since there is no actionable info here unfortunately.

I'm having this issue on some specific sites of media on  ex: YouTube, Received audio via facebook/messenger

Attached log of chrome://media-internals

Deleted: log1.txt 805 bytes

log1.txt 805 bytes View Download

alexsilvalhp@: could you also provide information from comment #4 and #8, as well as Chrome version you observe it in?

alexsilvalhp@: is #14 the full log from chrome://media-internals?

Windows 10 1809 October Update x64 - Chrome 69.0.3497.100

- I confirmed that Chrome appears in Volume Mixer and is not individually muted.

Deleted: variations.txt 1.1 KB

variations.txt 1.1 KB View Download

Deleted: media-internals.txt 2.9 KB

media-internals.txt 2.9 KB View Download

olka@chromium.org attached full logs now

Thanks alexsilvalhp@; there is no info from controller tab - or have I missed it?

---
According to experiment groups, audio service is not involved.

olka@ Controller tab? - how I get this?

Sorry, "audio" tab (it has info on audio controllers) - see #8.

olka@

Deleted: audio.txt 860 bytes

audio.txt 860 bytes View Download

Another log catch reproduced on Facebook audio message received on messenger

Deleted: media-internals.txt 1.9 KB

media-internals.txt 1.9 KB View Download

alexsilvalhp@ Thank you! Could you also share chrome://histograms/ content if possible, or at least "*DeviceAuthorization*" entries of it?

Here

Deleted: histograms.txt 2.6 MB

histograms.txt 2.6 MB View Download

Thanks! Have you restarted the browser between #23 and #25?

All audio statistics look healthy in #26, and the audio service seems to be running.

Comment 26 by olka@chromium.org, Today (19 minutes ago)
Thanks! Have you restarted the browser between #23 and #25?

A:No

The problem happens on some audios and videos on YouTube

It's intermitent and Happens on Microsoft Edge too 

Firefox it's OK

Hi @olka finally I solve this "bug"

The problem its on new Windows 10 1809 build (october update)

They install a generic audio driver instead "Realtek drivers"

I installed Realtek drivers and works fine now :)

Anyway thanks for your assist.

Thanks for an update alexsilvalhp@! Useful for us to triage similar issues.

Closing as WontFix, please re-open in case the problem occurs again.