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discord.js/docs/general/faq.md
Hackzzila 52a83b9218 Add ffmpeg-binaries as a possible source of ffmpeg (#975)
* Add ffmpeg-binaries as a possible source of ffmpeg

* Add note in faq
2016-12-11 19:02:00 +00:00

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# Frequently Asked Questions
These are just questions that get asked frequently, that usually have a common resolution.
If you have issues not listed here, please ask in the [official Discord server](https://discord.gg/bRCvFy9).
Always make sure to read the documentation.
## No matter what, I get `SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode`‽
Update to Node.js 6.0.0 or newer.
## How do I get voice working?
- Install FFMPEG.
- Install either the `node-opus` package or the `opusscript` package.
node-opus is greatly preferred, due to it having significantly better performance.
## How do I install FFMPEG?
- **npm:** `npm install --save ffmpeg-binaries`
- **Ubuntu 16.04:** `sudo apt install ffmpeg`
- **Ubuntu 14.04:** `sudo apt-get install libav-tools`
- **Windows:** See the [FFMPEG section of AoDude's guide](https://github.com/bdistin/OhGodMusicBot/blob/master/README.md#download-ffmpeg).
## How do I set up node-opus?
- **Ubuntu:** Simply run `npm install node-opus`, and it's done. Congrats!
- **Windows:** Run `npm install --global --production windows-build-tools` in an admin command prompt or PowerShell.
Then, running `npm install node-opus` in your bot's directory should successfully build it. Woo!