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https://issues.apache.org/jira/browse/GUACAMOLE-886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16939602#comment-16939602
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Mike Dickun commented on GUACAMOLE-886:
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I figured this out. It seems like the audio instruction isn't being sent during
the handshake phase. I modified the DummyGuacamoleTunnelServlet to send
GuacamoleClientInformation with the appropriate audio mime types and it works.
> guacamole-client example custom app has no audio from RDP session
> -----------------------------------------------------------------
>
> Key: GUACAMOLE-886
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-886
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole-client, guacamole-common-js
> Environment: Windows 10 for RDP
> guacamole/guacd docker image for guacd
> I made a docker image for the guacamole-client example app myself.
> Chrome browser
> Reporter: Mike Dickun
> Priority: Minor
>
> When using the stock sample app defined here:
> [https://github.com/glyptodon/guacamole-client/tree/master/doc/guacamole-example]
> with RDP I get no sound when watching video on the machine I'm RDP'ing to.
> When I use the stock app
> ([https://github.com/glyptodon/guacamole-client/tree/master/guacamole]),
> sound works. In my guacd logs, I can see that the audio format negotiation
> completes successfully...
>
> {{guacd[8]: INFO: Accepted format: 16-bit PCM with 2 channels at 44100 Hz}}
>
> I also see on the Windows machine that the remote audio device connects, I
> just get no sound in the browser. I'm unsure if the problem is in the
> DummyGuacamoleTunnelServlet.java file or if the audio is being streamed to
> the browser but somehow not being processed by the browser, which would point
> perhaps to guacamole-common-js.
>
> If I'm doing something wrong, I can't figure out what it is.
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