Buffer

**Please describe the problem you are having in as much detail as possible:**
When i try to construct the Method `OpusEncoder` node exits with `errno 4294930435` or with `Error: Cannot create a Buffer larger than 0x100000000 bytes`.

The first one occurs only when rate is set to `32000` on the constructor and the scond on on every other rate

**Include a reproducible code sample here, if possible:**
just construct OpusEncoder.

```js
import Microphone from 'node-microphone'
import { io } from 'socket.io-client'
import { OpusEncoder } from '@discordjs/opus'

const socket = io("http://localhost:3000");
const encoder = new OpusEncoder(16000, 2);

var mic = new Microphone({
bitwidth: 16,
channels: 1,
rate: 32000,
encoding: 'unsigned-integer',
endian: 'big'
});

var micStream = mic.startRecording();

micStream.on('data', (data) => {
var encodedData = encoder.encode(data);
console.log(encodedData);
socket.emit('stream', data);
});

```

**Further details:**
the problem occurs in line 6
- @discordjs/opus version:
- Node.js version: 15.3.0
- Operating system: Windows 10 Pro 64bit

- Priority this issue should have – please be realistic and elaborate if possible:
**medium**

Start by reproducing the failure at the OpusEncoder constructor on line 6 using the provided sample and Node.js 15.3.0 on Windows 10. Trace the constructor path in the native binding and verify that supported rates no longer cause the reported errno or oversized Buffer error.

Written by the indexing model from the issue text.