NAudio is an open source .NET audio library written by Mark Heath We're currently in the process of migrating from CodePlex. For now, if you are looking for help and documentation, visit http://naudio.codeplex.com. The latest source code is here on GitHub.
- Play back audio using a variety of APIs
- WaveOut
- DirectSound
- ASIO
- WASAPI (Windows Vista and above)
- Read audio from many standard file formats
- WAV
- AIFF
- WMA
- SoundFont files (SF2)
- Decode many popular audio compression types
- MP3 (using ACM, DMO or MFT)
- G.711 mu-law and a-law
- ADPCM
- G.722
- Speex (using NSpeex)
- WMA, AAC, MP4 and more others with Media Foundation
- Convert between various forms of uncompressed audio
- Change the number of channels - Mono to stereo, stereo to mono
- Modify bit depth (8, 16, 24, 32 integer or 32 bit IEEE float)
- Resample audio using a choice of resampling algorithms
- Encode audio using any ACM or Media Foundation codec installed on your computer
- Create MP3s on Windows 8 and above
- Create AAC/MP4 audio on Windows 7 and above
- Create WMA files
- Create WAV files containing G.711, ADPCM, G.722, etc.
- Mix and manipulate audio streams using a 32-bit floating mixing engine
- construct signal chains
- examine sample levels for the purposes of metering or waveform rendering
- pass blocks of samples through an FFT for metering or DSP
- delay, loop, or fade audio in and out
- Perform EQ with a BiQuad filter (allowing low pass, high pass, peaking EQ, etc.)
- Pitch shifting of audio with a phase vocoder
- Record audio
- using WaveIn, WASAPI or ASIO
- Work with soundcards
- Enumerate devices
- Access soundcard controls and metering information
- Full MIDI event model
- Read and write MIDI files
- Respond to received MIDI events
- Send MIDI events
- An extensible model
- All base classes easily inherited from for you to add your custom components
- Support for Windows RT
- Create Windows 8 Store apps and Windows Universal apps