audio redirection by mp3 doesn't sound with mstsc Windows 10 RS3

[metalefty]

mstsc on Windows 7 sounds.

Shell version: 6.3.9600
Control version: 6.3.9600
RDP 8.1

Windows 10 Insider Preview 1709 1705.1000 doesn't sound.

Shell version: 10.0.17025
Control version: 10.0.17025
RDP 10.5

Windows 10 1709 16299.19 doesn't sound.

Shell version: 10.0.16299
Control version: 10.0.16299
RDP 10.4

Maybe because of wave format config.
After Fall Creators Update, wave format became stricter.

[metalefty]

After I changed g_bbuf_size 11520 -> 4096, it sounds but not smooth. Maybe g_bbuf_size is the problem but 4096 is not still a valid value.

[jsorg71]

You can user NeutrinoRDP or maybe FreeRDP to connect to MS server and only report MP3 audio and see what size it uses. I don't think MP3 is like AAC where the compress block matters.

[metalefty]

OK, I'll try it.

[metalefty]

I've created a wiki page of audio formats. Windows don't seem to use MP3 when it works as an RDP server.

https://github.com/neutrinolabs/xrdp/wiki/Audio-formats-supported-by-Windows-as-a-RDP-Server

[speidy]

This is true , but mstsc still supports it since it relying on media foundation api. בתאריך יום ג׳, 5 בדצמ׳ 2017 ב-8:10 מאת metalefty <notifications@github.com>:

I've created a wiki page of audio formats. Windows don't seem to use MP3 when it works as an RDP server. https://github.com/neutrinolabs/xrdp/wiki/Audio-formats-supported-by-Windows-as-a-RDP-Server — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#965 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADTH1L6y5t8fQGx0ngTZKhLwnPrMw2WBks5s9N5bgaJpZM4QyF8s> .

-- Idan Freiberg PGP FP: 8108 7EC9 806E 4980 75F2 72B3 8AD3 2D04 337B 1F18

[metalefty]

Yes, the result is Windows as the server. As the client, mstsc actually supports MP3 but I can't know the correct wave format values for MP3 by peeping in RDP communications to Windows.

[metalefty]

Now it sounds on Windows 10 2004 build 19041.685.