Hi Joy,
Not familiar with this socket.io-stream, but you can emit PCM buffer (array
of floats) without any problem with socket.io. Quickly looking at your
code, you could simply have something along the line:
io.on('connection',function(socket) {
var pcm = fs.createWriteStream(path.resolve(__dirname, new Date().getTime() +
'-audio.pcm'));
socket.on('shout', function(data){
pcm.write(data);
});
socket.on('end', function(data){
pcm.end(data);
});
}
Once you can properly save the PCM into some file, I would try to listen to
it using sox to make sure you have the expected audio format. Then, if you
want to transcode the PCM data into mp3, you could use a
stream.Transform[1].
By the way, if you want to support Flash microphone as a backup, you could
use microphone.js[2] to which I've contributed a streaming facility.
[1]: http://nodejs.org/api/stream.html#stream_class_stream_transform
[2]: https://github.com/pdeschen/microphone.js
On Monday, July 29, 2013 10:50:10 AM UTC-4, Joy Dragon wrote:
>
> Hi all,
>
> I'm trying to make the "old" microphone streaming from the browser with
> node, socket.io and ... well a lot of things.
> I don't want to use Flash, and because the Web Audio API is almost on the
> 2 browsers that I want to support (Chrome already has it and Firefox is
> almost there)
> I'm currently able to capture the audio data, and using the socket-io
> stream project (https://github.com/nkzawa/socket.io-stream) I can stream
> something back to the server-
> The thing is that I really can't stream it properly, I get some data to
> the server, but I have to include a lot of noise in it, and then, when I
> want to encode it to MP3 to stream it fails.
> Here's a sample of my code
> https://github.com/joydragon/record-streaming-test if anyone can help me
> on a proper way to make this happen I'll be very glad
>
> Thanks in advance
>
>
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