---
title: Ass1
emoji: 🏢
colorFrom: red
colorTo: purple
sdk: gradio
sdk_version: 3.0.17
app_file: app.py
pinned: false
---

# EE 298 DL Assignment 1 (2S2021-22) by Paul Darvin
Demo Application for Sound Event Detection in Huggingface Space
## Link to Original/Reference Code
The codes contained in this repository were derived only from [PANNs inference](https://github.com/qiuqiangkong/panns_inference) Github repository which is an extension of the [mother repository](https://github.com/qiuqiangkong/audioset_tagging_cnn) for the paper [PANNs: Large-Scale Pretrained Audio Neural Networks for Audio Pattern Recognition](https://arxiv.org/pdf/1912.10211v5.pdf).   
## Background
An sound event detection system is an audio tagging system applied to time segments of an audio signal. It identifies tags like the presence of an object, a living thing, and an action that generates sound in a particular time. 
## Significance
Applications of sound event detection system are wide-ranging. For instance, a deaf person can use such system to detect an approaching vehicle or watch a movie with sounds described to him/her/them. It can aid in forensics for identifying presence of objects and actions in an audio evidence. It can also be used to navigate through a large audio file using time-indexed tags. Robots can be made more "human" by giving the ability to interpret audio signals the way humans do.
## Model Description
CNN14 is 14-layer convolutional neural network with 6 convolution layers. It uses a log-mel spectrogram with 1000 frames and 64 mel bins at the topmost layer to translate audio data to image data. The details of the architecture can be found in the [paper](https://arxiv.org/pdf/1912.10211v5.pdf).  
The authors claimed to achieve mean average precision (mAP) of 0.431 for CNN14 which exceeded the best system's mAP (0.392) at the time of publication.   
## Usage
Upload an audio file in WAV format. Other formats are not yet supported.