omegaframe / alsa.net Goto Github PK

Hi,

I wanna use the library but I need to play song for time limit from ms to minutes. Did you know if it's possible with Alsa and if you will be implement it on your lib ?

Regards

Hi

I am getting the following error.

I am using this library in .net C# project on a RaspberryPi. The aim is to capture audio. from a USB mic.

How can I specify the USB mic or get a list of device to connect with?

An unhandled exception of type 'Alsa.Net.Internal.AlsaDeviceException' occurred in Alsa.Net.dll: 'Alsa Error: Can not open recording device. Error -2. No such file or directory.'
   at Alsa.Net.Internal.UnixSoundDevice.ThrowErrorMessage(Int32 errorNum, String message)
   at Alsa.Net.Internal.UnixSoundDevice.OpenRecordingPcm()
   at Alsa.Net.Internal.UnixSoundDevice.Record(Stream saveStream, CancellationToken token)
   at Alsa.Net.Internal.UnixSoundDevice.Record(UInt32 second, Stream saveStream)
   at Alsa.Net.Internal.UnixSoundDevice.Record(UInt32 second, String savePath)
   at Program.Main(String[] args) in /home/dotnet.core.iot.csharp/Program.cs:line 12

Using 64-bit Debian, if we attempt to call SetSystemVolume or GetSystemVolume, we get the following exception:

SetSystemVolume error: Alsa.Net.Internal.AlsaDeviceException: Alsa Error: Volume error
Error -22. Invalid argument.
at Alsa.Net.Internal.UnixSoundDevice.ThrowErrorMessage(Int32 errorNum, String message)
at Alsa.Net.Internal.UnixSoundDevice.SetPlaybackVolume(Int64 volume)
at Alsa.Net.Internal.UnixSoundDevice.set_PlaybackVolume(Int64 value)

The same code works as expected on 32-bit, for example on a Raspberry Pi running a 32-bit OS.