hi Giawa, this is brilliant. I'll try to get this into NAudio for v1.7
thanks so much
Mark
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New Post: Converting WAVs to AIFFs
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Source code checked in, #581a62c2c1d1
Created MediaFoundationReader allowing NAudio to use Media Foundation API to play anything it supports which on Win 7 should include MP3, AAC, WMA. Thanks to Lucian Wischik for much of the interop work
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Source code checked in, #c87491ff704f
creating NuGet prerelease package
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Source code checked in, #656277cc67ba
Adding AiffFileWriter contributed by Giawa
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New Post: Converting WAVs to AIFFs
I've committed the new class, although haven't had a chance to test it yet. Any chance you could do a quick code review for me. The change ishere.
many thanks for this contribution.
Mark
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Commented Issue: Generator [16367]
Here is an audio generator to test the installation (Pink noise, white noise, Sweep, Sin, Square, Triangle, Sawtooth) with PhaseReverse.
Frequency Fixed or variable.
Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.
There is nothing unusual in the calculation of waveforms.
Integration into NAudio a IWaveProvider or ISampleProvider.
Files Attachment: Class WaveGenerator.cs and complement for demo.
I suspect that this class will not be used much but it just still be useful
Comments: hi, I'm working on integrating this into the next NAudio. I've made a few changes, but mostly it looks like a really nice addition to the library so thanks very much
Frequency Fixed or variable.
Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.
There is nothing unusual in the calculation of waveforms.
Integration into NAudio a IWaveProvider or ISampleProvider.
Files Attachment: Class WaveGenerator.cs and complement for demo.
I suspect that this class will not be used much but it just still be useful
Comments: hi, I'm working on integrating this into the next NAudio. I've made a few changes, but mostly it looks like a really nice addition to the library so thanks very much
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Source code checked in, #966ae54a7483
added a signal generator class contributed by ManuN, currently untested. Can do various waveforms (sine, triangle, sawtooth etc) plus pink and white noise
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Source code checked in, #c967d695bc0a
added the signal generator demo from ManuN, not currently working yet
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Commented Issue: Generator [16367]
Here is an audio generator to test the installation (Pink noise, white noise, Sweep, Sin, Square, Triangle, Sawtooth) with PhaseReverse.
Frequency Fixed or variable.
Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.
There is nothing unusual in the calculation of waveforms.
Integration into NAudio a IWaveProvider or ISampleProvider.
Files Attachment: Class WaveGenerator.cs and complement for demo.
I suspect that this class will not be used much but it just still be useful
Comments: OK, it's in the libary (called "SignalGenerator") but I may have broken it in my attempts to "fix" it. I'll see if I can work out where the problem is
Frequency Fixed or variable.
Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.
There is nothing unusual in the calculation of waveforms.
Integration into NAudio a IWaveProvider or ISampleProvider.
Files Attachment: Class WaveGenerator.cs and complement for demo.
I suspect that this class will not be used much but it just still be useful
Comments: OK, it's in the libary (called "SignalGenerator") but I may have broken it in my attempts to "fix" it. I'll see if I can work out where the problem is
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Source code checked in, #65410ffba3c6
fixed the signal generator demo, added ability to save a 20s WAV file
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Edited Issue: Generator [16367]
Here is an audio generator to test the installation (Pink noise, white noise, Sweep, Sin, Square, Triangle, Sawtooth) with PhaseReverse.<br />Frequency Fixed or variable.<br />Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.<br /><br /><br />There is nothing unusual in the calculation of waveforms.<br /><br />Integration into NAudio a IWaveProvider or ISampleProvider.<br /><br />Files Attachment: Class WaveGenerator.cs and complement for demo.<br /><br />I suspect that this class will not be used much but it just still be useful
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Commented Issue: Generator [16367]
Here is an audio generator to test the installation (Pink noise, white noise, Sweep, Sin, Square, Triangle, Sawtooth) with PhaseReverse.<br />Frequency Fixed or variable.<br />Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.<br /><br /><br />There is nothing unusual in the calculation of waveforms.<br /><br />Integration into NAudio a IWaveProvider or ISampleProvider.<br /><br />Files Attachment: Class WaveGenerator.cs and complement for demo.<br /><br />I suspect that this class will not be used much but it just still be useful
Comments: got it working, the demo had set the device number to 2. I've added a button that lets you save 20s worth of signal. Maybe a future update could add portamento to allow smooth changing of frequency (and also of gain)
Comments: got it working, the demo had set the device number to 2. I've added a button that lets you save 20s worth of signal. Maybe a future update could add portamento to allow smooth changing of frequency (and also of gain)
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New Post: NAudio eating memory
you need to remember to call Dispose your Mp3FileReader and your waveOutDevice before creating new ones
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Source code checked in, #65e8578387d9
Created an experimental Windows 8 Store class library project. Includes as many classes from NAudio as possible, but currently lots missing - especially file reader/writers which need to support new file APIs. Also WASAPI playback and capture which should be possible in Win 8 needs some rework before
it can be moved in. Required a number small changes to existing classes to help the code compile on both platforms.
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New Comment on "Convert a MP3 to WAV"
"txtLocation" not in the present context?
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Commented Issue: Generator [16367]
Here is an audio generator to test the installation (Pink noise, white noise, Sweep, Sin, Square, Triangle, Sawtooth) with PhaseReverse.<br />Frequency Fixed or variable.<br />Waveforms and frequencies were correct with external software (SmaartLive7) and an oscilloscope.<br /><br /><br />There is nothing unusual in the calculation of waveforms.<br /><br />Integration into NAudio a IWaveProvider or ISampleProvider.<br /><br />Files Attachment: Class WaveGenerator.cs and complement for demo.<br /><br />I suspect that this class will not be used much but it just still be useful
Comments: hello, Sorry for the selection of driver forgets, and sorry for your lost time because of this error on my part. If I have some time to do an update to add portamento. this is probably a good idea to add a procedure "Save" for some users :-)
Comments: hello, Sorry for the selection of driver forgets, and sorry for your lost time because of this error on my part. If I have some time to do an update to add portamento. this is probably a good idea to add a procedure "Save" for some users :-)
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New Post: wma arggggggg
hello,
For a while, I try to play wma files or other formats of the same kind with a driver or ASIO CoreAPI and I am still facing the same error.
I even included a MediaFoundation procedure (similar to that published in the new version of NAudio, a lot of work, and congratulations to the author) but it's still the same problem.
I end up with this error ::
"NAudio.MediaFoundation.IMFSourceReader ..... This interface is not supported (Exception from HRESULT 0x80004002 (E_NOINTERFACE)
However, the procedure works with audio driver WavOut () standart (without Thread).
So if someone find the trick to read files type. "Wma" with ASIO or driverAudio CoreAPI
Mark: I know I've raised the issue .. (see http://naudio.codeplex.com/workitem/16370) but hey, a call for commonality from time to time :-)
Sincerely, manun
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New Post: wma arggggggg
the issue here is almost certainly threading. You're creating and initialising the COM object on one thread and accessing it from another. That's why WaveOut works, while the other models which use background threads don't. You could try marking your app as being MTAThread instead of STAThread. Alternatively, you could create a wrapper around your IWaveProvider that doesn't perform any initialisation until the first call to Read comes in, which will be on the correct thread.
I've only just committed the IMFSourceReader yesterday and it's by no means finished. I need to add in some locking for positioning while you are playing and I will be trying it out with various threading options and models over the coming weeks.
Mark
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New Post: wma arggggggg
read this thread if you are unfamiliar with MTAThread:
http://stackoverflow.com/questions/127188/could-you-explain-sta-and-mta
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New Post: NAudio 1.6 - Wasapi Loopback COMException
I wrote a small test program in vb.net 2012 , the program is to record "what you hear" using the new WasapiCapture class. Upon invoking the wasapi.startrecording function, I get a ComException from NAudio. I searched Microsoft KB but the exception number was not there
has anyone encountered something similar?
the code is as follows:
Imports naudio
Imports naudio.wave
Imports NAudio.CoreAudioApi
Public Class Form1
Dim WithEvents Wasapi As WasapiCapture
Dim Writer As WaveFileWriter
Dim WvFormat As WaveFormat
Dim mmdev As MMDeviceEnumerator
Dim audio As MMDevice
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
mmdev = New MMDeviceEnumerator
audio = mmdev.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia)
WvFormat = audio.AudioClient.MixFormat
Wasapi = New WasapiCapture(audio)
Wasapi.WaveFormat = WvFormat
Writer = New WaveFileWriter("E:\2.wav", WvFormat)
''
''
End Sub
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
Application.Exit()
End Sub
Private Sub Wasapi_DataAvailable(sender As Object, e As WaveInEventArgs) Handles Wasapi.DataAvailable
Writer.Write(e.Buffer, 0, e.BytesRecorded)
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
If Wasapi IsNot Nothing Then
Wasapi.StartRecording()
End If
''''
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
If Wasapi IsNot Nothing Then
Wasapi.Dispose()
Wasapi = Nothing
End If
''
If Writer IsNot Nothing Then
Writer.Flush()
Writer.Close()
End If
''
End Sub
Private Sub Wasapi_RecordingStopped(sender As Object, e As EventArgs) Handles Wasapi.RecordingStopped
'''''
If Writer IsNot Nothing Then Writer.Dispose()
''''
If Wasapi IsNot Nothing Then Wasapi.Dispose()
''''
End Sub
End Class
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