The other channel gets a silent stream (a stream of zeros). I'm using it to send a WaveChannel32 which contains a stream from the MP3FileReader to one channel of my sound card. I do have a question about the MultiplexingWaveProvider. PlaybackDevice.Init(MultiplexingWaveProvider)įrist of all: Great work on the whole project! It's fun to work with and has all the functions one could ask for :) Var waveProvider = new MultiplexingWaveProvider(new IWaveProvider, 2) Var input2 = new Mp3FileReader("test2.mp3") Make sure you create a new preset BEFORE you start MIDI mapping so that when you are finished there will be a preset to save to - just clicking new will wipe your current MIDI. Var input1 = new Mp3FileReader("test1.mp3") To prevent the hassle of having to MIDI assign every time you have a gig you can create new, save, delete and load MIDI templates in the MIDI tab of the SETUP screen. Note that input1 and input2 must be at the same sample rate and bit depth. In the following example, we create a new four-channel WaveProvider, so the first two outputs will play left and right channel from input1 and the second two outputs will have the left and right channels from input2. Creating and Configuring MultiplexingWaveProvider By default the inputs will be mapped directly onto the outputs (and wrap round if there are less outputs than inputs – so a single mono input would be automatically copied to every output), but these can be changed. In the constructor, you simply provide all the inputs you wish to use, and specify the number of output channels you would like. So I’ve created something I’ve called the MultiplexingWaveProvider (if you can think of a better name, let me know in the comments). For example, if you had two Mp3FileReaders, and wanted to connect the left channel of the first to output 1 and the left channel of the second to output 2, this class would let you do that.
#Delete bidule midi channels Patch
What would be useful is an implementation of IWaveProvider that allows us to connect different inputs to particular outputs, kind of like a virtual patch bay. The WaveFormat class has a channel count, and though this is normally set at 1 or 2, there is no reason why you can’t set it to 8. Having got that out of the way, in NAudio it is possible for audio streams to have any number of channels. The good news is that if you have an ASIO driver, you ought to be able to open it and address all the outputs. For example a four output card may appear as though it were two separate stereo soundcards.
#Delete bidule midi channels driver
That depends on how the writers of the device driver have chosen to present the card’s capabilities to Windows. The first issue to deal with is that just because your soundcard has multiple outputs, doesn’t mean you can necessarily open WaveOut with multiple outs. For example, can you play one MP3 file out of one speaker and a different one out of the other? If you have four outputs, can you route a different signal to each one? One of the recurring questions on the NAudio support forums is to do with how you can route different sounds to different outputs in a multi-channel soundcard setup.
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