---
license: apache-2.0
pipeline_tag: audio-to-audio
tags:
- pytorch
- audio
- upsampling
---
# FlashSR

FlashSR is a 2MB audio super-resolution model based on the HierSpeech++'s upsampler architecture. It upscales 16kHz audio to 48kHz at speeds ranging from 200x to 400x real-time.

### Details
* **Model Size:** 2MB
* **Input Rate:** 16kHz
* **Output Rate:** 48kHz
* **Inference Speed:** 200x - 400x real-time depending on gpu and dtype

### Performance Summary
FlashSR is designed for high-speed frequency reconstruction. It offers a significantly lower computational footprint compared to alternatives such as Resemble-Enhance and ClearerVoice, while maintaining similar output quality.



### Benchmark Comparison

| Model | Speed | Size |
| :--- | :--- | :--- |
| **FlashSR** | **200x - 400x realtime** | **2MB** |
| Resemble-Enhance | < 20x realtime | ~700MB+ |
| ClearerVoice | < 20x realtime | ~200MB+ |

### Usage
Usage instructions and source code are available on GitHub:
https://github.com/ysharma3501/FlashSR

### Credits
Thanks to the authors of **HierSpeech++** as this was based on it's 48khz upsampler.