Is there a way to get the sound that the sound card is playing directly from the hardware?
NAudio is a nice API for sound programming in C#. I'm only discovered it myself, but it might be able to record the output, though probably not...
http://www.codeplex.com/naudio
some sound cars can select the output sound as mic, if that is acceptable then you could just google how to use the microphone...
The most general way is Total Recorder which has a COM interface.
I presume that this is Windows since you are using C#. Ignore this if you are using mono.
There is no officially supported way to do this in Windows. Some sound cards have a setting in the mixer that will set the wave record input to 'what you hear'. So on those cards, you could just set that setting and then record audio.
edit:
I should add that if your driver doesn't have built in support for recording what it's outputing, then you will need to write or purchase a driver that does. I've heard that TotalRecorder can do this.
Related
Need to record all sounds from sound card. So that mic+output was written to file.
Is it possible to do with NAudio library in Windows 7? Cant find any examples, found just ones that allow to write mic or just sound from speakers, not both.
PS, sorry, if the question looks not ok..Im new to audiorecording.
Added issue ive asked on codeplex: http://naudio.codeplex.com/workitem/16353
To record sounds being played by the soundcard, you would use WASAPI in Loopback Mode.
To record sounds going into the microphone you could use WASAPI capture, or any of the other microphone capture classes in NAudio.
Then you have the slightly tricky job of mixing those two inputs together. This may require sample rate conversion beforehand, and it may require you to timestamp the recorded audio (as the loopback audio can contain gaps when nothing is being played).
With NAudio, you would convert both streams to floating point, before mixing them using one of the "Mixer" wave or sample providers in NAudio, and then writing that back out to a file.
So yes it is possible, and I have done it once before myself, but it does require you to write a fair bit of your own code on top of the core NAudio libraries.
Is it possible to capture the raw signal from a WiFi card in the same way you can capture the signal from a sound card? (I already found code for working with a sound card and for drawing spectrograms) I'm wondering because it would make a cool radio-type project. I'd prefer a solution that integerates well with .net (VB or C#).
My basic goal is to capture the ambient radio waves and build a primative "telescope" of sorts. Using the built in computer hardware is just the easiest way to accomplish this. If you have any other suggestions about how to accomplish this goal in a different way please post it as an answer also.
Thanks.
Look up "Software Defined Radio". They are usually either radio electronic kits or fairly expensive hardware. You will still need an antenna.
I need to make a Windows applications which takes audio input (from microphone) and plays immediately to the speaker. If I explain in short, nI eed to make an application which can test my microphone.
I have been exploring Naudio and wmp libraries over the last 3 days but I couldn't get enough help to create it. But I know using these libraries there must be a way to create such an application.
Thanks in anticipation.
You can use two ways
csaudio //hard way, but realy nice
How-record-voice-from-microphone //easy way
EDIT
At list try this
Voice Recorder (here using naudio its opensource)
Is it possible to play a sound on a playback device that is not set as default playback device?
I need to play multiple files simultaniously trough multiple output devices.
Does anyone knows a solution for .net? (C#)
Thanks!
you will have to go to lower level API. You can try find C# wrapper for Wasapi, ASIO, DirectSound or MediaFoundation. Maybe XNA framework could do the job, which is managed framework over directX
well I was playing around with similar issue.
XNA could not do send output to specific device.
I have ended out with http://naudio.codeplex.com/, which is exactly what you need. It's C# wrapper for Wasapi, ASIO, DirectSound libraries. It also includes many very helpful classes for converting, decoding, visualizing etc. For simple player, check out NAudioDemo sample project.
find out CreateWaveOut() method. This is where you should select your playbackdevice.
for example:
MMDevice device = new MMDeviceEnumerator()
.EnumerateAudioEndPoints(DataFlow.Render, DeviceState.All)
.FirstOrDefault(d => d.ID == "yourplaybackdeviceid");
IWavePlayer waveOut = new WasapiOut(device, AudioClientShareMode.Shared, false, latency);
Download the naudio library from sourcecode tab not from Download->Release, it's not very actual and it's little buggy.
another good tool is bass.net
http://www.un4seen.com/
I have a MAYA 44 USB sound card and would like to interface it with C#. I want to record from the provided microphones and produce a data array.
I have found examples when using the internal sound card from my laptop but when it comes to external it does not quite work.
Has anyone every connected the above sound card with C# please?
Have you had a look at the DirectSound API (Windows only though, I think). Might provide what you're after.
On how to record audio with C# in general there are already multiple threads on SO, so I won't talk about that.
I see two possible causes for your program which have different solutions:
You need to change which audio sources are muted in the windows volume control ("sndvol32.exe /R")
When opening the audio device there are multiple devices. And you're simply opening device 0 instead of enumerating them and perhaps choosing another one. The external sound-card might appear as a second device.