``Last update: July 28, 2025``

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## Introduction :icon-book:
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- This is a guide on how to use most of the TTS' listed in the TTS Tools section in realtime.

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## Installation 
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### TTS Program
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Choose any TTS in our [TTS Tools](https://docs.aihub.gg/tts/tts-tools/).

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### Virtual Audio Cable
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- A VAC (Virtual Audio Cable) makes a fake audio device, used to re-route the audio of different programs.
- In AI Realtime Voice Changing context, it's used to get the output of AI Converted Voice Output as the input in other programs such as Discord.

!!! For Windows
Download this: [VAC Lite (Virtual-Audio-Cable by Muzychenko)](https://software.muzychenko.net/freeware/vac470lite.zip).
(Be sure to not use any toher vac like VB Audio Cable.)
!!!

- Run `setup64`, not 64a, after extracting the zip to a new folder

- After installing the VAC Lite, it changes your default audio system. Click **Yes** when it asks you to open the audio device settings (or press WIN+R, type "mmsys.cpl" if you closed it already), and change your **Recording** and **Playback** devices back to your usual devices. Same for communications device aswell (right click -> set as default communication device)

!!! For Mac
Download either: 
[Blackhole Virtual Audio Cable](https://existential.audio/blackhole)
or
[VB-Audio](https://vb-audio.com/Cable)
!!!

!!! For Linux
For Debian / Ubuntu-based Systems (Ubuntu, Mint, Pop!_OS), run in the terminal:
```bash
sudo apt-get update && sudo apt-get install -y portaudio19-dev
```

For Fedora / RHEL-based Systems (CentOS, Rocky Linux), run in the terminal:
```bash
sudo yum install -y portaudio
```
!!!

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## Setup
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1. After installing a VAC you need to:

!!! For Windows:
Press WIN+R and type `mmsys.cpl` and change the default audio devices back to your headphones and microphone, make sure you do this for default and communication default.
!!!

!!! For Mac:
 Press Command + Spacebar and type `Sound` and set the default audio device back to your headphones and microphone , make sure you do this for default and communication default.
!!!

2. After that:
!!! For Windows:
Press WIN+CTRL+V and select the VAC as the output device.
!!!

!!! For Mac:
Hold down the option key on your keyboard then click the sound icon in the upper right corner of the menu bar and then a dropdown menu will appear which allows you to select the VAC as the output device.
!!!!

3. Audio Setup in Games:
- In Discord go to Settings then Voice & Video and select your VAC for your input. 
- It's the same thing for game too, go into its audio settings and set its input to the VAC. 

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#### `You have reached the end.`

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