logs for media-internals and net-internals are added here:
https://pantheon.corp.google.com/storage/browser/chromiumos-test-logs/bugfiles/cr/806117

Observed issue on 63.0.3239.140/10032.86.0.

With "Observed many times." you meant as you see beginning of a playback silent  then becoming audible, and once you start another playback it starts silent again, etc. all in one user session, right?
Can you post a video of the observations?

Yes, The beginning of playback is silent and after a while audio is coming. This is observed after rebooting the system or signout and signin.  

Observation video link: https://storage.cloud.google.com/chromiumos-test-logs/bugfiles/cr/806117/IMG_2845.MOV?_ga=2.192271791.-463426234.1510184315

Video started playing at at 6th sec but audio is coming from 16th sec.

suspend/resume + local video playback seems to reproduce 100% for the first attempt to play.

Unable to repo issue on minnie device on 64.0.3282.122/10176.61.0.

Is this a regression ?
There are no recent change in rockchip audio driver on 3.14 kernel for a year.

I don't repro this bug on my LINK device with chrome 64.0.3282.134 build.

The issue seems (Veyron_)Jaq ONLY related.
After restarting or resume from suspend there is no sound for a while(at lest few seconds) Observed for playing either video w/h audio, or just audio (from local audio file too).  Reproduced with youtube/dailymotion/local media player.

add dale, any idea top of your head?
Media team doesn't have Jaq device to verify.

avkodipelli@, do you still repro this bug?

Able to repo issue on 66.0.3359.52/10452.24.0.
Repo steps:
-- Start playing local video in browser
-- Shutdown device while video is playing
-- Switch on device and login
-- Browser opens and video playback started
-- Observe video but no audio for few seconds

Feedback ID: https://listnr.corp.google.com/report/85235239300

 avkodipelli@, can you provide chrome://media-internal log?

media-internal files are uploaded at https://pantheon.corp.google.com/storage/browser/chromiumos-test-logs/bugfiles/cr/806117

Seems like cras audio issue and not related to general media pipeline.

I checked the log in #17.
There was no suspicious error messages of CRAS or kernel driver.

Louis, could you please identify whether this is an issue in kernel ?
At least we need to make sure PCM status is in RUNNING state.

If driver does not work as expected, we will need Rockchip's help (+Xing from Rockchip). 

Thanks!

ytsao@ is arranging for a device to be sent over from MTV (thanks!) - will update once I've got that and been able to reproduce

There are no jaq devices in TPE or MTV, so not sure how to reproduce this; has anyone been able to reproduce on a different veyron board?

I've got a mighty, but to flash it doesn't have a working OS, or USB boot enabled, so seems like I will need to mess around with a servo board to get it working - I haven't done this before so guess it will take a while.

Before I get into that - kalin / avkodipelli - do you have a working mighty you could check quickly to see if it's reproducible there? thanks! 

Not able to reproduce this issue on M66 and M67 builds.

Dut tested : Veyron_Jaq
Builds tested: M67_10575.0.0 and M66_10452.54.0

Able to repo issue as per #17 repo steps on 10575.0.0, 67.0.3390.0 on jaq device. 

Not reproduced issue on other veyron device(mighty device) for same repo steps and same build.

Feedback for jaq: https://listnr.corp.google.com/report/85323773967

Taken 2 more Jaq devices from other teams and verifying to check whether it's a device specific issue.

Unable repo issue on other Jaq devices. Not sure what makes special for my device. I'll try to narrow down the issue.