Cochl-sense NPM

cochl-sense (Sense API beta-v2)

This repository implement a library working with nodejs to interact with Cochlear.ai backend. An API key is required for this library to work. You can get an API key on https://cochlear.ai/ website.

Dependencies

Nodejs-client library depends on grpc, google-protobuf and protobufjs.

Use nodejs package

Make sure to have node and npm installed.

Install cochl-sense nodejs client : npm install cochl-sense

Analyse a file

If you want to analyse a file, run the following script. (You will need to replace API-KEY and "./music.mp3" for your case).

const SenseClient = require("cochl-sense").SenseClient;
const fs  = require("fs");

const client = new SenseClient("API-KEY");
const buffer = fs.readFileSync("./music.mp3");
const extension = "mp3";

function callback(err, result){
	if(err){
		console.error(err);
	} else {
		console.log(JSON.stringify(result));
	}
}

client.sendFile(buffer,extension).event(callback);

Analyse a stream

If you want to analyse a stream, our client needs to access your micrpophone. You can use for instance naudiodon :

npm install naudiodon

And run the following script : (enter your API Key)

const portAudio = require("naudiodon");
const SenseClient = require("cochl-sense").SenseClient;
const SamplingFormat = require("cochl-sense").SamplingFormat;

var senseClient = new SenseClient("API-KEY");
var samplingRate = 22050;
var audioStream = portAudio.AudioIO({
	inOptions: {
	    channelCount: 1,
	    deviceId: -1,
	    sampleFormat: portAudio.SampleFormat32Bit,
	    sampleRate: samplingRate
	}
});

function callback(err,result) {
	if(err) {
		console.error(err);
	} else {
		console.log(JSON.stringify(result));
	}
}

senseClient.sendStream(audioStream, samplingRate, SamplingFormat.Int32Bit).event(callback);

audioStream.start();