CODEWITHSUNDEEP
c#windowsaudio
user499054
user499054

Reputation:

Capturing Window's audio in C#

Is it possible to record Window's output sounds programmatically in C#? A bit like recording something from the "what you hear" or "stereo output" feature (without having to select them)?

Upvotes: 10

Views: 29151

Answers (4)

levinjay
levinjay

Reputation: 116

If you want to capture audio output you can use "WasapiLoopbackCapture" https://github.com/naudio/NAudio/blob/master/Docs/WasapiLoopbackCapture.md

If you want to capture audio input you can use "RecordWavFileWaveIn" https://github.com/naudio/NAudio/blob/master/Docs/RecordWavFileWinFormsWaveIn.md

Just install the reference package - https://www.nuget.org/packages/NAudio

Upvotes: 1

Josh
Josh

Reputation: 41

I'm a bit tardy to the party, but CSCore has a pretty great library for managing windows audio events in C#.

This in particular looks like what you're wanting. http://filoe.github.io/cscore/sharpDox/1.2.0-release/#type/WasapiLoopbackCapture

Upvotes: 4

kervin
kervin

Reputation: 11858

Also checkout the NAudio library.

PS. C++ but relevant http://blogs.msdn.com/b/matthew_van_eerde/archive/2008/12/16/sample-wasapi-loopback-capture-record-what-you-hear.aspx?PageIndex=2

Upvotes: 6

MusiGenesis
MusiGenesis

Reputation: 75296

This is called loopback recording, and it is possible in Windows. If you have a soundcard that supports loopback (I just checked on my low-end Toshiba laptop, and it doesn't) you can record straight from the loopback device using the waveInOpen etc. API, which is easy to use in C#. Note: recording audio in this way necessarily entails a reduction in quality, since the audio signal is converted to analog for output and then re-digitized to support the loopback interface.

If you don't have a soundcard, WASAPI will let you do this. I suppose WASAPI can be used with C#, but it looks painful.

Upvotes: 8

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