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Questions tagged [audio-capture]

74 questions
17
votes
4 answers

Chrome extension to listen and capture streaming audio

Is it possible for a Chrome extension to listen for streaming audio from any of the browser's tabs? I would like to capture the streaming audio data and then analyse it. Thanks
OneDimensionalmc
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10
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2 answers

Capturing Microphone Using Html 5 and broadcast using socket.io

I am currently developing Virtual Classroom with whiteboard,video/audio conferencing. How can I capture microphone using HTML5,Javascript. How can i create base64 encoded string from microphone ? I already capture video image from tag and draw on…
luke
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5
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1 answer

Error while checking audio capture device

Hello I am trying to check if a Beaglebone AI is getting correctly I2S from a TIDA-1454 so if I try to arecord test.wav I get: debian@beaglebone:/etc$ arecord -d 10 ALSA lib pcm_dsnoop.c:638:(snd_pcm_dsnoop_open) unable to open slave…
Mikel
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4
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2 answers

Is there a way to capture a browser's audio using Javascript or any other web language?

I want to make a simple website that displays interactive visuals and I would like for some of them to be audio-driven. I want the visitors to be able to drive the visuals with their own choice of music. I've had difficulty finding much…
Etienne Richan
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4
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1 answer

Browser based audio capture, then post to server side

Working on a project that will need browser / device cross compatible audio recording (video is not required, but may utilise camera audio inputs). Thinking some kind of HTML5 and flash fallback (for idevices / IE / old browsers etc). The HTML5…
Horse
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3
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0 answers

Encoding and decoding audio using opus - WINDOWS?

I am trying to capture audio from the default device and stream with the help of OPUS. The audio from the device is captured using WASAPI. Encoding and decoding is done using OPUS where the states are created initially. Initialization…
Preethi Ravi
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3
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1 answer

Save to Wav file the audio recorded with .NetCore C# on Raspberry pi

I am finding very difficult to find a way to store the audio captured using OpenTk.NetStandard into a proper .WAV file in NetCore C#. What I am looking for is a solution which will work when running on a Raspberry pi, so NAudio or any Windows…
bre_dev
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3
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1 answer

Add audio capability to Capture Filter

I'm trying to add audio capability to a capture source filter in order to make a virtual cam with audio. Beginning with the TMH's and rdp's code I extended it with another pin, called "Audio": CUnknown * WINAPI CVCam::CreateInstance(LPUNKNOWN lpunk,…
Mark
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3
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3 answers

How to record voice on Android Things

I am working on Preview 2 of the SDK of Android Things on RPi3. Tried Audio Recorder as well as Media Recorder, still not able to get audio captured. I am trying to get my speech converted to text. Regular SpeechRecognition is not supported. I have…
Abhinav Tyagi
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3
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1 answer

xuggle-xuggler 5.4 NullPointerException when encoding audio

Today I was working with the Xuggler library and I tried capturing my screen which worked flawless. But I also wanted to add audio from my microphone to the video file I captured. This was not as easy as I had expected, and now I'm stuck with this…
Linus
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3
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2 answers

Is there a way to listen for the tempo/bpm of audio playing in Android?

The Android app I'm building has to listen to music (either playing on the phone or picked up by the device's mic) and then do something based on the music. So what I was thinking of doing is to listen for the tempo/bpm of the music playing and…
marienke
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3
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1 answer

How can I write software to play sound clips routed into the recording device?

I want to write a program which allows users to play sound clips into their microphone (recording device) so that they can mix in clips with their voice while using VOIP software (Ventrillo or Skype for example) from their PC. When I say play sound…
sysrpl
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2
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1 answer

iPhone AVCaptureDeviceInput How to Set Quality of Audio Capture?

The following code is working fine (some checking and code eliminated) at 44100 depth 2 which seems to be the default. Since this interface is usable, but not documented well, anyone know of how to change the default quality? audioCaptureDevice =…
ort11
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2
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1 answer

Record web browser with sound as a service on linux server with puppeteer

I'm trying to build a service on a linux server to record video a web browser with its sound. The first step I did with the source code below (using xvfb, puppeteer and ffmpeg) to record successfully. However when I do a recording with different…
NA GUY
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2
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1 answer

How to solve issue with ffmpeg being stuck at 'Opening an input file'

I am using a capture card to capture HDMI audio from another machine. On my host, output of arecord -l is as follow: **** List of CAPTURE Hardware Devices **** Home directory not accessible: Permission denied card 0: PCH [HDA Intel PCH], device 0:…
zv989
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