Environmental Sound ML Classification

I need a machine learning model to classify environmental sounds from field recordings.

Requirements:
- Develop a classification model
- Use of field recordings as input data
- Preprocessing of audio data for model training
- High accuracy and performance

Ideal Skills:
- Experience with audio processing
- Proficiency in machine learning frameworks
- Background in environmental sound classification
- Ability to deliver clean, well-documented code
- Strong testing and validation skills

Please provide samples of previous work.