is there a way to record audio in mp4 using ruby on rails / web / html5

Question

I would like to find a way to record audio (not video) in mp4 format on the web.

Reason for this is ios/android are both generating in this format, and I want to be able to be consistent with the audio format. (android mediarecorder for example does not do mp3, thats the reason why this is the preferred format)

Is there a recorder that records mp4 audio for web/html5/rails?

UPDATE:

I found out recorderjs https://github.com/mattdiamond/Recorderjs

Im guessing if I could change encodeWAV to encodeMPEG4 in here: https://webaudiodemos.appspot.com/AudioRecorder/js/recorderjs/recorderWorker.js

This is the target audio outcome Im trying to achieve:

Type: Audio

Codec: MPEG AAC Audio (mp4a)

cant find mp4. could it be using html5 video api but just set to mic only. not quite sure. — Axil, Feb 05 '16 at 13:55
How about converting the WAV to MP4 after capture via libfaac? (See this answer http://stackoverflow.com/a/9943403/365218) — Rystraum, Feb 17 '16 at 03:10

score 1 · Answer 1 · answered Feb 15 '16 at 15:48

1

There is an example which uses Web Audio API. I think your front-end(HTML and Javascript) should handle audio recording which will generate mp4 file then you can save it in your rails app via Carrierwave or something else.

answered Feb 15 '16 at 15:48

Mr.D

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hmm, im not sure if it does generate mp4. so far i'ved found other formats. https://github.com/higuma/web-audio-recorder-js. not clear yet how to build the file codec (aac) and container for mp4. – Axil Feb 22 '16 at 06:47

score 0 · Answer 2 · answered Feb 17 '16 at 03:10

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Try to use ffmpeg,

www.ffmpeg.org

streamio-ffmpeg

answered Feb 17 '16 at 03:10

Rashad Aliyev

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is there a way to record audio in mp4 using ruby on rails / web / html5

2 Answers2