Create configuration_audio_spectrogram_transformer.py

configuration_audio_spectrogram_transformer.py

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+# coding=utf-8
+# Copyright 2022 Google AI and The HuggingFace Inc. team. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Audio Spectogram Transformer (AST) model configuration"""
+
+from ...configuration_utils import PretrainedConfig
+from ...utils import logging
+
+
+logger = logging.get_logger(__name__)
+
+
+class ASTConfig(PretrainedConfig):
+    r"""
+    This is the configuration class to store the configuration of a [`ASTModel`]. It is used to instantiate an AST
+    model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
+    defaults will yield a similar configuration to that of the AST
+    [MIT/ast-finetuned-audioset-10-10-0.4593](https://huggingface.co/MIT/ast-finetuned-audioset-10-10-0.4593)
+    architecture.
+
+    Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
+    documentation from [`PretrainedConfig`] for more information.
+
+    Args:
+        hidden_size (`int`, *optional*, defaults to 768):
+            Dimensionality of the encoder layers and the pooler layer.
+        num_hidden_layers (`int`, *optional*, defaults to 12):
+            Number of hidden layers in the Transformer encoder.
+        num_attention_heads (`int`, *optional*, defaults to 12):
+            Number of attention heads for each attention layer in the Transformer encoder.
+        intermediate_size (`int`, *optional*, defaults to 3072):
+            Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
+        hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
+            The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
+            `"relu"`, `"selu"` and `"gelu_new"` are supported.
+        hidden_dropout_prob (`float`, *optional*, defaults to 0.0):
+            The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
+        attention_probs_dropout_prob (`float`, *optional*, defaults to 0.0):
+            The dropout ratio for the attention probabilities.
+        initializer_range (`float`, *optional*, defaults to 0.02):
+            The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
+        layer_norm_eps (`float`, *optional*, defaults to 1e-12):
+            The epsilon used by the layer normalization layers.
+        patch_size (`int`, *optional*, defaults to 16):
+            The size (resolution) of each patch.
+        qkv_bias (`bool`, *optional*, defaults to `True`):
+            Whether to add a bias to the queries, keys and values.
+        frequency_stride (`int`, *optional*, defaults to 10):
+            Frequency stride to use when patchifying the spectrograms.
+        time_stride (`int`, *optional*, defaults to 10):
+            Temporal stride to use when patchifying the spectrograms.
+        max_length (`int`, *optional*, defaults to 1024):
+            Temporal dimension of the spectrograms.
+        num_mel_bins (`int`, *optional*, defaults to 128):
+            Frequency dimension of the spectrograms (number of Mel-frequency bins).
+
+    Example:
+
+    ```python
+    >>> from transformers import ASTConfig, ASTModel
+
+    >>> # Initializing a AST MIT/ast-finetuned-audioset-10-10-0.4593 style configuration
+    >>> configuration = ASTConfig()
+
+    >>> # Initializing a model (with random weights) from the MIT/ast-finetuned-audioset-10-10-0.4593 style configuration
+    >>> model = ASTModel(configuration)
+
+    >>> # Accessing the model configuration
+    >>> configuration = model.config
+    ```"""
+
+    model_type = "audio-spectrogram-transformer"
+
+    def __init__(
+        self,
+        hidden_size=768,
+        num_hidden_layers=12,
+        num_attention_heads=12,
+        intermediate_size=3072,
+        hidden_act="gelu",
+        hidden_dropout_prob=0.0,
+        attention_probs_dropout_prob=0.0,
+        initializer_range=0.02,
+        layer_norm_eps=1e-12,
+        patch_size=16,
+        frequency_patch_size=None, 
+        time_patch_size=None, 
+        qkv_bias=True,
+        frequency_stride=10,
+        time_stride=10,
+        max_length=1024,
+        num_mel_bins=128,
+        **kwargs,
+    ):
+        super().__init__(**kwargs)
+
+        self.hidden_size = hidden_size
+        self.num_hidden_layers = num_hidden_layers
+        self.num_attention_heads = num_attention_heads
+        self.intermediate_size = intermediate_size
+        self.hidden_act = hidden_act
+        self.hidden_dropout_prob = hidden_dropout_prob
+        self.attention_probs_dropout_prob = attention_probs_dropout_prob
+        self.initializer_range = initializer_range
+        self.layer_norm_eps = layer_norm_eps
+        self.patch_size = patch_size
+        self.frequency_patch_size = frequency_patch_size
+        self.time_patch_size = time_patch_size
+        self.qkv_bias = qkv_bias
+        self.frequency_stride = frequency_stride
+        self.time_stride = time_stride
+        self.max_length = max_length
+        self.num_mel_bins = num_mel_bins