# Whisper-WebUI
A Gradio-based browser interface for [Whisper](https://github.com/openai/whisper). You can use it as an Easy Subtitle Generator!

![Whisper WebUI](https://github.com/jhj0517/Whsiper-WebUI/blob/master/screenshot.png)

## Notebook
If you wish to try this on Colab, you can do it in [here](https://colab.research.google.com/github/jhj0517/Whisper-WebUI/blob/master/notebook/whisper-webui.ipynb)!

# Feature
- Generate subtitles from various sources, including :
  - Files
  - Youtube
  - Microphone
- Currently supported subtitle formats : 
  - SRT
  - WebVTT
  - txt ( only text file without timeline )
- Speech to Text Translation 
  - From other languages to English. ( This is Whisper's end-to-end speech-to-text translation feature )
- Text to Text Translation
  - Translate subtitle files using Facebook NLLB models

# Installation and Running
## Prerequisite
To run Whisper, you need to have `git`, `python` version 3.8 ~ 3.10 and `FFmpeg`.

Please follow the links below to install the necessary software:
- git : [https://git-scm.com/downloads](https://git-scm.com/downloads)
- python : [https://www.python.org/downloads/](https://www.python.org/downloads/) **( If your python version is too new, torch will not install properly.)**
- FFmpeg :  [https://ffmpeg.org/download.html](https://ffmpeg.org/download.html)

After installing FFmpeg, **make sure to add the `FFmpeg/bin` folder to your system PATH!**

## Automatic Installation
If you have satisfied the prerequisites listed above, you are now ready to start Whisper-WebUI.

1. Run `Install.bat` from Windows Explorer as a regular, non-administrator user.
2. After installation, run the `start-webui.bat`. (It will automatically download the model if it is not already installed.)
3. Open your web browser and go to `http://localhost:7860`

( If you're running another Web-UI, it will be hosted on a different port , such as `localhost:7861`, `localhost:7862`, and so on )

And you can also run the project with command line arguments if you like by running `user-start-webui.bat`, see [wiki](https://github.com/jhj0517/Whisper-WebUI/wiki/Command-Line-Arguments) for a guide to arguments.

# VRAM Usages
This project is integrated with [faster-whisper](https://github.com/guillaumekln/faster-whisper) by default for better VRAM usage and transcription speed.

According to faster-whisper, the efficiency of the optimized whisper model is as follows: 
| Implementation    | Precision | Beam size | Time  | Max. GPU memory | Max. CPU memory |
|-------------------|-----------|-----------|-------|-----------------|-----------------|
| openai/whisper    | fp16      | 5         | 4m30s | 11325MB         | 9439MB          |
| faster-whisper    | fp16      | 5         | 54s   | 4755MB          | 3244MB          |

If you want to use the original Open AI whisper implementation instead of optimized whisper, you can set the command line argument `DISABLE_FASTER_WHISPER` to `True`. See the [wiki](https://github.com/jhj0517/Whisper-WebUI/wiki/Command-Line-Arguments) for more information.

## Available models
This is Whisper's original VRAM usage table for models.

|  Size  | Parameters | English-only model | Multilingual model | Required VRAM | Relative speed |
|:------:|:----------:|:------------------:|:------------------:|:-------------:|:--------------:|
|  tiny  |    39 M    |     `tiny.en`      |       `tiny`       |     ~1 GB     |      ~32x      |
|  base  |    74 M    |     `base.en`      |       `base`       |     ~1 GB     |      ~16x      |
| small  |   244 M    |     `small.en`     |      `small`       |     ~2 GB     |      ~6x       |
| medium |   769 M    |    `medium.en`     |      `medium`      |     ~5 GB     |      ~2x       |
| large  |   1550 M   |        N/A         |      `large`       |    ~10 GB     |       1x       |


`.en` models are for English only, and the cool thing is that you can use the `Translate to English` option from the "large" models!