import os
import pandas as pd
from datasets import DatasetDict, Audio

def load_data(data_dir):
    metadata = pd.read_csv(os.path.join(data_dir, "metadata.csv"))
    data = DatasetDict.from_pandas(metadata)
    data = data.cast_column("path", Audio())
    return data

data = load_data("my_dataset")
print(data)