node-microphone | simple module that use arecord ALSA tools method | Audio Utils library

by vincentsaluzzo JavaScript Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | node-microphone Summary

node-microphone is a JavaScript library typically used in Audio, Audio Utils applications. node-microphone has no bugs, it has no vulnerabilities and it has low support. You can install using 'npm i microphone' or download it from GitHub, npm.

microphone is a simple module that use `arecord` ALSA tools method to capture sound from a USB Microphone

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Quality

Security

License

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Support

node-microphone has a low active ecosystem.

It has 54 star(s) with 49 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

There are 8 open issues and 1 have been closed. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of node-microphone is current.

Quality

node-microphone has 0 bugs and 0 code smells.

Security

node-microphone has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

node-microphone code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

node-microphone does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

node-microphone releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions are not available. Examples and code snippets are available.

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node-microphone Key Features

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node-microphone Examples and Code Snippets

No Code Snippets are available at this moment for node-microphone.

Community Discussions

Trending Discussions on node-microphone

NodeJS: Capturing a stereo PCM wave stream into mono AudioBuffer

Streaming audio from microphone over gRPC

Node - How to write audio file

QUESTION

NodeJS: Capturing a stereo PCM wave stream into mono AudioBuffer

Asked 2020-May-15 at 19:43

I'm recording audio from nodejs using node-microphone (which is just a javascript interface for arecord), and want to store the stream chunks in an AudioBuffer using web-audio-api (which is a nodejs implementation of the Web Audio API).

My audio source has two channels while my AudioBuffer has only one (in purpose).

This is my working configuration for recording audio with arecord through my USB sound card (I'm using a Raspberry pi 3 running on Raspbian buster):

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ANSWER

Answered 2020-May-15 at 19:43

So the input stereo signal is coming as 16 bits signed integers, interleaving left and right channels, meaning that the corresponding buffers (8 bits unsigned integers) have this format for a single stereo sample:

Source https://stackoverflow.com/questions/61777531

QUESTION

Streaming audio from microphone over gRPC

Asked 2018-Feb-22 at 09:34

I would like to design a client/server system where the client is recording audio from a microphone and streaming it to a server for further processing. I'm planning on using gRPC, with a NodeJS client (I don't have control over the server).

But I don't really know how to do that. I found the npm package "microphone-stream" that seemed to perfectly fit my needs (https://www.npmjs.com/package/microphone-stream), because I can record from microphone and get each buffer separately in order to send them to the server. Unfortunately, this package use the getUserMedia API, which means I can't use it in plain NodeJS.

So I found other npm packages (node-microphone and mic) which don't use getUserMedia, but they don't allow to retrieve buffers on the stream easily (or I just don't know how to do it). For example, I can see on "mic" page (https://www.npmjs.com/package/mic) :

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ANSWER

Answered 2018-Feb-22 at 09:34

Okay, thanks to Michael I manage to achieve what I wanted to do.

First of all, I noticed that if a console.log() my buffer, I got something like this.

Source https://stackoverflow.com/questions/48870691

QUESTION

Node - How to write audio file

Asked 2017-Sep-02 at 20:50

I'm making an application that records what a user is saying, and saves it to a file. In order to get the sound from the microphone I'm using the node-microphone package. My application currently is able to get the sound from the microphone. However, when i try to write the stream to a audio file, and play it, i get the following error.

Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file.

Does anyone know how to write audio to a file in node?

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ANSWER

Answered 2017-Sep-02 at 20:50

The node-microphone documentation states :

startRecording()

Start the recording with the given sound options in the class. Creates a new child process. It will return the recording PCM Wave Stream as Node Stream.

I imagine your files are missing the correct headers. One of the following modules might help you :

node-wav

The Writer class accepts raw audio data written to it (only PCM audio data is currently supported), and outputs a WAV file with a valid WAVE header at the beginning specifying the formatting information of the audio stream.

audiobuffer-to-wav

Source https://stackoverflow.com/questions/46013866

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install node-microphone

You can install using 'npm i microphone' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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