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ESC-50-master.zip

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+version https://git-lfs.github.com/spec/v1
+oid sha256:d32cc4432c656db311b39bd474cdc0e9644d03633ea5457dcbba2d7fa7cb55ad
+size 645694876

esc50 (1).py

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+import os
+import datasets
+import typing as tp
+from pathlib import Path
+
+SAMPLE_RATE = 44_100
+EXTENSION = '.wav'
+
+
+class Esc50Config(datasets.BuilderConfig):
+    """BuilderConfig for ESC50."""
+    
+    def __init__(self, features, **kwargs):
+        super(Esc50Config, self).__init__(version=datasets.Version("0.0.1", ""), **kwargs)
+        self.features = features
+
+
+class ESC50(datasets.GeneratorBasedBuilder):
+    """
+    The ESC50 dataset
+    """
+
+    BUILDER_CONFIGS = [
+        Esc50Config(
+            features=datasets.Features(
+                {
+                    "file": datasets.Value("string"),
+                    "audio": datasets.Audio(sampling_rate=SAMPLE_RATE),
+                    "sound": datasets.Value("string"),
+                    "label": datasets.ClassLabel(names=ESC50_LABELS),
+                }
+            ),
+            name="fold1", 
+            description='',
+        ), 
+    ]
+    
+    def _info(self):
+        return datasets.DatasetInfo(
+            description='Environmental sound classification dataset',
+            features=self.config.features,
+        )
+
+    def _split_generators(self, dl_manager):
+        data_dir = dl_manager.download_and_extract("ESC-50-master.zip")
+        return [
+            datasets.SplitGenerator(
+                name=datasets.Split.TRAIN, 
+                gen_kwargs={
+                    "data_dir": data_dir, 
+                    "split": 'train'
+                }, 
+            ), 
+            datasets.SplitGenerator(
+                name=datasets.Split.TEST, 
+                gen_kwargs={
+                    "data_dir": data_dir, 
+                    "split": 'test'
+                }, 
+            ), 
+        ]
+
+    def _generate_examples(self, data_dir, split):
+        _, _walker = fast_scandir(data_dir, [EXTENSION], recursive=True)
+
+        test_fold = self.config.name
+        train_fold = [f'fold{f}' for f in range(1, 11)]
+        train_fold.remove(test_fold)
+
+        for idx, fileid in enumerate(_walker):
+            fold = default_find_fold(fileid)
+            if split == 'train' and f'fold{fold}' in train_fold:
+                yield idx, {
+                    'file': fileid, 
+                    'audio': fileid, 
+                    'sound': default_find_classes(fileid), 
+                    'label': default_find_classes(fileid)
+                }
+            elif split == 'test' and f'fold{fold}' in test_fold:
+                yield idx, {
+                    'file': fileid, 
+                    'audio': fileid, 
+                    'sound': default_find_classes(fileid), 
+                    'label': default_find_classes(fileid)
+                }
+
+
+def default_find_classes(audio_path):
+    id_ = Path(audio_path).stem.split('-')[-1]
+    return ESC50_ID2LABEL.get(int(id_))
+
+
+def default_find_fold(audio_path):
+    fold = Path(audio_path).stem.split('-')[0]
+    return int(fold)
+
+
+def fast_scandir(path: str, exts: tp.List[str], recursive: bool = False):
+    # Scan files recursively faster than glob
+    # From github.com/drscotthawley/aeiou/blob/main/aeiou/core.py
+    subfolders, files = [], []
+
+    try:  # hope to avoid 'permission denied' by this try
+        for f in os.scandir(path):
+            try:  # 'hope to avoid too many levels of symbolic links' error
+                if f.is_dir():
+                    subfolders.append(f.path)
+                elif f.is_file():
+                    if os.path.splitext(f.name)[1].lower() in exts:
+                        files.append(f.path)
+            except Exception:
+                pass
+    except Exception:
+        pass
+
+    if recursive:
+        for path in list(subfolders):
+            sf, f = fast_scandir(path, exts, recursive=recursive)
+            subfolders.extend(sf)
+            files.extend(f)  # type: ignore
+
+    return subfolders, files
+
+
+ESC50_LABELS = [
+    "airplane",
+    "breathing",
+    "brushing_teeth",
+    "can_opening",
+    "car_horn",
+    "cat",
+    "chainsaw",
+    "chirping_birds",
+    "church_bells",
+    "clapping",
+    "clock_alarm",
+    "clock_tick",
+    "coughing",
+    "cow",
+    "crackling_fire",
+    "crickets",
+    "crow",
+    "crying_baby",
+    "dog",
+    "door_wood_creaks",
+    "door_wood_knock",
+    "drinking_sipping",
+    "engine",
+    "fireworks",
+    "footsteps",
+    "frog",
+    "glass_breaking",
+    "hand_saw",
+    "helicopter",
+    "hen",
+    "insects",
+    "keyboard_typing",
+    "laughing",
+    "mouse_click",
+    "pig",
+    "pouring_water",
+    "rain",
+    "rooster",
+    "sea_waves",
+    "sheep",
+    "siren",
+    "sneezing",
+    "snoring",
+    "thunderstorm",
+    "toilet_flush",
+    "train",
+    "vacuum_cleaner",
+    "washing_machine",
+    "water_drops",
+    "wind",
+]
+
+ESC50_LABEL2ID = {
+    "dog": 0,
+    "rooster": 1,
+    "pig": 2,
+    "cow": 3,
+    "frog": 4,
+    "cat": 5,
+    "hen": 6,
+    "insects": 7,
+    "sheep": 8,
+    "crow": 9,
+    "rain": 10,
+    "sea_waves": 11,
+    "crackling_fire": 12,
+    "crickets": 13,
+    "chirping_birds": 14,
+    "water_drops": 15,
+    "wind": 16,
+    "pouring_water": 17,
+    "toilet_flush": 18,
+    "thunderstorm": 19,
+    "crying_baby": 20,
+    "sneezing": 21,
+    "clapping": 22,
+    "breathing": 23,
+    "coughing": 24,
+    "footsteps": 25,
+    "laughing": 26,
+    "brushing_teeth": 27,
+    "snoring": 28,
+    "drinking_sipping": 29,
+    "door_wood_knock": 30,
+    "mouse_click": 31,
+    "keyboard_typing": 32,
+    "door_wood_creaks": 33,
+    "can_opening": 34,
+    "washing_machine": 35,
+    "vacuum_cleaner": 36,
+    "clock_alarm": 37,
+    "clock_tick": 38,
+    "glass_breaking": 39,
+    "helicopter": 40,
+    "chainsaw": 41,
+    "siren": 42,
+    "car_horn": 43,
+    "engine": 44,
+    "train": 45,
+    "church_bells": 46,
+    "airplane": 47,
+    "fireworks": 48,
+    "hand_saw": 49
+}
+ESC50_ID2LABEL = {v:k for k, v in ESC50_LABEL2ID.items()}