Record incoming audio stream node js
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I'm looking for a way to record an incoming audio stream from an external source (http://audio12.broadcastify.com/krjb6ymsvnhf54z.mp3?nocache=8396379) into a node server. Ultimately I want to do some processing in real time on the stream and listen for specific frequencies within the audio.
Is there anything out there to process incoming audio streams?
node.js audio streaming audio-streaming internet-radio
edited Nov 22 at 2:13
Brad
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asked Nov 22 at 2:10
Bill
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up vote
1
down vote
favorite
I'm looking for a way to record an incoming audio stream from an external source (http://audio12.broadcastify.com/krjb6ymsvnhf54z.mp3?nocache=8396379) into a node server. Ultimately I want to do some processing in real time on the stream and listen for specific frequencies within the audio.
Is there anything out there to process incoming audio streams?
node.js audio streaming audio-streaming internet-radio
edited Nov 22 at 2:13
Brad
113k26226386
asked Nov 22 at 2:10
Bill
2,291115285
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I'm looking for a way to record an incoming audio stream from an external source (http://audio12.broadcastify.com/krjb6ymsvnhf54z.mp3?nocache=8396379) into a node server. Ultimately I want to do some processing in real time on the stream and listen for specific frequencies within the audio.
Is there anything out there to process incoming audio streams?
node.js audio streaming audio-streaming internet-radio
edited Nov 22 at 2:13
Brad
113k26226386
asked Nov 22 at 2:10
Bill
2,291115285
I'm looking for a way to record an incoming audio stream from an external source (http://audio12.broadcastify.com/krjb6ymsvnhf54z.mp3?nocache=8396379) into a node server. Ultimately I want to do some processing in real time on the stream and listen for specific frequencies within the audio.
Is there anything out there to process incoming audio streams?
node.js audio streaming audio-streaming internet-radio
node.js audio streaming audio-streaming internet-radio
edited Nov 22 at 2:13
Brad
113k26226386
asked Nov 22 at 2:10
Bill
2,291115285
edited Nov 22 at 2:13
Brad
113k26226386
asked Nov 22 at 2:10
Bill
2,291115285
edited Nov 22 at 2:13
Brad
113k26226386
edited Nov 22 at 2:13
Brad
113k26226386
edited Nov 22 at 2:13
Brad
113k26226386
113k26226386
asked Nov 22 at 2:10
Bill
2,291115285
asked Nov 22 at 2:10
Bill
2,291115285
asked Nov 22 at 2:10
Bill
2,291115285
2,291115285
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
1
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There is a rewrite of the Web Audio API in JavaScript for Node.js: https://github.com/audiojs/web-audio-api
I think what would be easier in your case would be to use FFmpeg to fetch and decode the audio to PCM (via a simple child process, piping data to your app over STDIO), and then do your own processing from there.
If you're looking for specific frequencies consider an implementation of the Goertzel Algorithm. It's more efficient than doing a full FFT, if you only need a couple frequencies.
answered Nov 22 at 2:14
Brad
113k26226386
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
There is a rewrite of the Web Audio API in JavaScript for Node.js: https://github.com/audiojs/web-audio-api
I think what would be easier in your case would be to use FFmpeg to fetch and decode the audio to PCM (via a simple child process, piping data to your app over STDIO), and then do your own processing from there.
If you're looking for specific frequencies consider an implementation of the Goertzel Algorithm. It's more efficient than doing a full FFT, if you only need a couple frequencies.
answered Nov 22 at 2:14
Brad
113k26226386
add a comment |
up vote
1
down vote
There is a rewrite of the Web Audio API in JavaScript for Node.js: https://github.com/audiojs/web-audio-api
I think what would be easier in your case would be to use FFmpeg to fetch and decode the audio to PCM (via a simple child process, piping data to your app over STDIO), and then do your own processing from there.
If you're looking for specific frequencies consider an implementation of the Goertzel Algorithm. It's more efficient than doing a full FFT, if you only need a couple frequencies.
answered Nov 22 at 2:14
Brad
113k26226386
add a comment |
up vote
1
down vote
up vote
1
down vote
There is a rewrite of the Web Audio API in JavaScript for Node.js: https://github.com/audiojs/web-audio-api
I think what would be easier in your case would be to use FFmpeg to fetch and decode the audio to PCM (via a simple child process, piping data to your app over STDIO), and then do your own processing from there.
If you're looking for specific frequencies consider an implementation of the Goertzel Algorithm. It's more efficient than doing a full FFT, if you only need a couple frequencies.
answered Nov 22 at 2:14
Brad
113k26226386
There is a rewrite of the Web Audio API in JavaScript for Node.js: https://github.com/audiojs/web-audio-api
I think what would be easier in your case would be to use FFmpeg to fetch and decode the audio to PCM (via a simple child process, piping data to your app over STDIO), and then do your own processing from there.
If you're looking for specific frequencies consider an implementation of the Goertzel Algorithm. It's more efficient than doing a full FFT, if you only need a couple frequencies.
answered Nov 22 at 2:14
Brad
113k26226386
answered Nov 22 at 2:14
Brad
113k26226386
answered Nov 22 at 2:14
Brad
113k26226386
answered Nov 22 at 2:14
Brad
113k26226386
113k26226386
add a comment |
add a comment |
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