audio-recording

Is there a way to record the audio data that's being sent to webkitAudioContext.destination ? The data that the nodes are sending there is being played by the browser, so there should be some way to store that data into a (.wav) file. Currently, there's not a native way to do that, but as Max said in the comment above, Recorderjs does essentially this (it doesn't chain onto the destination, but is a ScriptProcessorNode you can connect other nodes to, and have its input recorded. I built on Recorderjs to do a simple audio file recorder - https://github.com/cwilso/AudioRecorder . Sine to opus

I want to continuously sample from my PC's audio line in using C# (then process that data). What is the best way to do the sampling? You can do some (basic) audio capture using the open source NAudio .NET Audio Library. Have a look at the NAudioDemo project to see a simple example of recording to a WAV file using the WaveIn functions. NAudio also now includes the ability to capture audio using WASAPI (Windows Vista and above) and ASIO (if your soundcard has an ASIO driver). There is the Alvas Audio library as well, not free, has a nagging screen if you don't pay, but works beautifully. And the

I have a project for Android reading a short[] array with PCM data from microphone Buffer for live analysis. I need to convert this functionality to iOS Swift. In Android it is very simple and looks like this.. import android.media.AudioFormat; import android.media.AudioRecord; ... AudioRecord recorder = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, someSampleRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, AudioRecord.getMinBufferSize(...)); recorder.startRecording(); later I read the buffer with recorder.read(data, offset, length); //data is short[] (That's what i'm

I have a voice memo component in my app, and I want to allow the user to trim the audio, similar to QuickTime X on Mac OS Ten point Six handles it, or like the Voice Memos app on the iPhone. Here's an example of both: Any help is appreciated. I am not a UI programmer by any means. This was a test I wrote to see how to write custom controls. This code may or may not work. I have not touched it in some time. header @interface SUIMaxSlider : UIControl { @private float_t minimumValue; float_t maximumValue; float_t value; CGPoint trackPoint; } @property (nonatomic, assign) float_t minimumValue,

My app includes the ability for the user to record a brief message; I'd like to trim off any silence (or, to be more precise, any audio whose volume falls below a given threshold) from the beginning and end of the recording. I'm recording the audio with an AVAudioRecorder, and saving it to an .aif file. I've seen some mention elsewhere of methods by which I could have it wait to start recording until the audio level reaches a threshold; that'd get me halfway there, but won't help with trimming silence off the end. If there's a simple way to do this, I'll be eternally grateful! Thanks. This