如何使用Javascript / PHP录制用户的声音？ [关闭]

Question

I am currently trying to make a test site that allows users to record voice-notes and save it to their account. What is the best way to do this using either PHP or JavaScript?

The steps that I am looking to have for this process are:

1) User clicking the record button. 2) Initiation of the recording sequence. 3) Stopping the sequence. 4) Naming of the file and sending it over to the server.

My main query is focused on the 2nd step, where I'd need some mechanism that would interact with the user's mic to record the voice. I am still new to web dev per se and I do not know how I can invoke voice recording using JavaScript.

Upon searching in Google, I found some links in StackOverflow which addressed similar issues but the answers were not helpful. A lot of solutions pointed to Flash but I would like to avoid that as much as possible. So my question does boil down to "Is it possible to record voice using JavaScript? If yes, how?"

Thanks in advance.

Answer 1

The HTML5 Audio API is not widely supported in browsers, I think it works in Chrome and Firefox has had it recently added to its nightlies... Browser prefixes are required at this stage but the general API is...

navigator.getUserMedia({audio: true}, function(stream) { /* do stuff */ });

So that would be webkitGetUserMedia for Chrome and mozGetUserMedia for Firefox.

Your more consistent options right now are via browser plugins such as Flash or Java or to create a desktop client that the user would need to install.

Resources of interest regarding getUserMedia:

• Intro to getUserMedia
• getUserMedia added to Firefox nightlies
• Audio only issues with getUserMedia in Chromium

The following question may assist you further:

tutorial on using flash or java servlet to upload microphone data from browser to server?