How to stream sound from Windows to Raspberry Pi?

[Snoop05]

My onboard soundcard stopped working, and two discrete soundcards i have are incompatible.
However, i have my RPi 2 laying around, so i can use it as my soundcard
I want to stream all sound from Windows (not just music streaming)
RPi will be connected directly to my 2nd ethernet card
Ideal case will be if the software on Windows will create virtual audio device so it act as real soundcard.
Less latency is better

Any ideas? Im searching for such software for hours and nothing. (Damn PulseAudio not working on Windows)

[P4d0uch]

Hi I have the same problem. My notebook is working only with headphones.
I'm using Shairport and it is working well. The latency is around 1.5 - 2s over WiFi (Ethernet could be better), but if you are using VLC player you can set up audio synchronization to match up and then video plays without any problem.
Have a look here: http://drewlustro.com/hi-fi-audio-via-a ... pberry-pi/ And for the Windows side try TuneBlade - it is free to use with shairport.

[akira4m]

For the virtual sound device, install VB-cable or HiFi cable http://vb-audio.pagesperso-orange.fr/Cable/ , and then configure TuneBlade to capture audio as mentioned here: http://tuneblade.com/support/Documentat ... aptureMode

Install ShairPort on the Pi, or just flash Volumio's image (https://volumio.org/) on the SD card. Volumio has shairport.

Only issue is the latency of about 1-2 seconds. There should be a way to reduce this latency by configuring ShairPort. You can offset the latency by pressing 'J' and 'K' keys while playing a video on VLC.

[timdw]

I think I have a way to do this using GStreamer. Seeing as this thread is one of the top search results I thought I would post it here, hope that's OK! It's not thoroughly tested - I haven't used it for an extended period of time - but it seems ok so far. Comments are welcome! This is just the outline so any questions, please ask and I'll edit this post to include the answers.

The Pi had just had a fresh install of Raspbian Stretch, it's a Pi 1 Model B 256MB with a generic USB sound card.

On the Raspberry Pi
Install:

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sudo apt-get install gstreamer1.0-plugins-base gstreamer1.0-tools gstreamer1.0-alsa gstreamer1.0-plugins-good

Start a server:

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gst-launch-1.0 -v udpsrc port=5555 caps='application/x-rtp, media=(string)audio, clock-rate=(int)48000, encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96' ! rtpL16depay ! audioconvert ! queue ! autoaudiosink sync=true

Adjust sound level, get the mixer control name:

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pi@raspberrypi:~ $ amixer
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 30
  Mono:
  Front Left: Playback 30 [100%] [0.00dB] [on]
  Front Right: Playback 30 [100%] [0.00dB] [on]
Simple mixer control 'Mic',0
  Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: Playback 0 - 14 Capture 0 - 30
  Mono: Playback 1 [7%] [-10.50dB] [off] Capture 26 [87%] [27.00dB] [on]
Simple mixer control 'Auto Gain Control',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]

Set volume to 100% - mixer name was Speaker from the previous amixer output.

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 amixer set Speaker 100%

For USB audio, if there's no sound output then:

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sudo nano /usr/share/alsa/alsa.conf

Change the following lines:

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defaults.ctl.card 1
defaults.pcm.card 1

On Windows
Install Gstreamer (currently https://gstreamer.freedesktop.org/data/pkg/windows/)
Create a PowerShell script SendAudio.ps1:

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$gstDir="C:\gstreamer\1.0\x86\bin"
$gstlaunch=Join-Path -Path $gstDir -ChildPath "gst-launch-1.0.exe"
$hostIP='<IP address of Pi>'
$port='5555'
$parms='-v wasapisrc loopback=true low-latency=true ! queue ! audioconvert ! rtpL16pay ! udpsink ' + "host=$hostIP port=$port"
$process=Start-Process -FilePath $gstlaunch -ArgumentList $parms -WorkingDirectory $gstDir -WindowStyle Minimized -PassThru
$process.PriorityClass="RealTime"

Start a PowerShell session. If necessary, change PowerShell execution policy:

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Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope CurrentUser

Run the script:

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Cd <folder where you saved it>
.\SendAudio.ps1