Add Language Detector

hubconf.py

@@ -3,6 +3,7 @@ import torch
 from utils import (init_jit_model,
                    get_speech_ts,
                    get_number_ts,
+                   get_language,
                    save_audio,
                    read_audio,
                    state_generator,
@@ -29,7 +30,7 @@ def silero_vad(**kwargs):
 
 
 def silero_number_detector(**kwargs):
-    """Silero Number Detector and Language Classifier
+    """Silero Number Detector
     Returns a model with a set of utils
     Please see https://github.com/snakers4/silero-vad for usage examples
     """
@@ -42,3 +43,16 @@ def silero_number_detector(**kwargs):
              drop_chunks)
 
     return model, utils
+
+
+def silero_lang_detector(**kwargs):
+    """Silero Language Classifier
+    Returns a model with a set of utils
+    Please see https://github.com/snakers4/silero-vad for usage examples
+    """
+    hub_dir = torch.hub.get_dir()
+    model = init_jit_model(model_path=f'{hub_dir}/snakers4_silero-vad_master/files/number_detector.jit')
+    utils = (get_language,
+             read_audio)
+
+    return model, utils

silero-vad.ipynb

@@ -312,6 +312,78 @@
     "Audio('no_numbers.wav')"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "heading_collapsed": true
+   },
+   "source": [
+    "## Language detector"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "heading_collapsed": true,
+    "hidden": true
+   },
+   "source": [
+    "### Install Dependencies"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "hidden": true
+   },
+   "outputs": [],
+   "source": [
+    "#@title Install and Import Dependencies\n",
+    "\n",
+    "# this assumes that you have a relevant version of PyTorch installed\n",
+    "!pip install -q torchaudio soundfile\n",
+    "\n",
+    "import glob\n",
+    "import torch\n",
+    "torch.set_num_threads(1)\n",
+    "\n",
+    "from IPython.display import Audio\n",
+    "from pprint import pprint\n",
+    "\n",
+    "model, utils = torch.hub.load(repo_or_dir='snakers4/silero-vad',\n",
+    "                              model='silero_lang_detector',\n",
+    "                              force_reload=True)\n",
+    "\n",
+    "(get_language,\n",
+    " read_audio) = utils\n",
+    "\n",
+    "files_dir = torch.hub.get_dir() + '/snakers4_silero-vad_master/files'"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "heading_collapsed": true,
+    "hidden": true
+   },
+   "source": [
+    "### Full audio"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "hidden": true
+   },
+   "outputs": [],
+   "source": [
+    "wav = read_audio(f'{files_dir}/en.wav')\n",
+    "lang = get_language(wav, model)\n",
+    "print(lang)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {
@@ -677,6 +749,98 @@
     "           drop_chunks(number_timestamps, wav), 16000) \n",
     "Audio('no_numbers.wav')"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "heading_collapsed": true
+   },
+   "source": [
+    "## Language detector"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "heading_collapsed": true,
+    "hidden": true,
+    "id": "bL4kn4KJrlyL"
+   },
+   "source": [
+    "### Install Dependencies"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "ExecuteTime": {
+     "end_time": "2020-12-30T17:25:19.107534Z",
+     "start_time": "2020-12-30T17:24:51.853293Z"
+    },
+    "cellView": "form",
+    "hidden": true,
+    "id": "Q4QIfSpprnkI"
+   },
+   "outputs": [],
+   "source": [
+    "#@title Install and Import Dependencies\n",
+    "\n",
+    "# this assumes that you have a relevant version of PyTorch installed\n",
+    "!pip install -q torchaudio soundfile onnxruntime\n",
+    "\n",
+    "import glob\n",
+    "import torch\n",
+    "import onnxruntime\n",
+    "from pprint import pprint\n",
+    "\n",
+    "from IPython.display import Audio\n",
+    "\n",
+    "_, utils = torch.hub.load(repo_or_dir='snakers4/silero-vad',\n",
+    "                              model='silero_lang_detector',\n",
+    "                              force_reload=True)\n",
+    "\n",
+    "(get_language,\n",
+    " read_audio) = utils\n",
+    "\n",
+    "files_dir = torch.hub.get_dir() + '/snakers4_silero-vad_master/files'\n",
+    "\n",
+    "def init_onnx_model(model_path: str):\n",
+    "    return onnxruntime.InferenceSession(model_path)\n",
+    "\n",
+    "def validate_onnx(model, inputs):\n",
+    "    with torch.no_grad():\n",
+    "        ort_inputs = {'input': inputs.cpu().numpy()}\n",
+    "        outs = model.run(None, ort_inputs)\n",
+    "        outs = [torch.Tensor(x) for x in outs]\n",
+    "    return outs"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "heading_collapsed": true,
+    "hidden": true,
+    "id": "5JHErdB7jsr0"
+   },
+   "source": [
+    "### Full Audio"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "hidden": true
+   },
+   "outputs": [],
+   "source": [
+    "model = init_onnx_model(f'{files_dir}/number_detector.onnx')\n",
+    "wav = read_audio(f'{files_dir}/en.wav')\n",
+    "\n",
+    "lang = get_language(wav, model, run_function=validate_onnx)\n",
+    "print(lang)"
+   ]
   }
  ],
  "metadata": {

utils.py

@@ -9,6 +9,9 @@ import torch.nn.functional as F
 torchaudio.set_audio_backend("soundfile")  # switch backend
 
 
+languages = ['ru', 'en', 'de', 'es']
+
+
 def validate(model,
              inputs: torch.Tensor):
     with torch.no_grad():
@@ -138,6 +141,16 @@ def get_number_ts(wav: torch.Tensor,
     return timings
 
 
+def get_language(wav: torch.Tensor,
+                 model,
+                 run_function=validate):
+    wav = torch.unsqueeze(wav, dim=0)
+    lang_logits = run_function(model, wav)[2]
+    lang_pred = torch.argmax(torch.softmax(lang_logits, dim=1), dim=1).item()   # from 0 to len(languages) - 1
+    assert lang_pred < len(languages)
+    return languages[lang_pred]
+
+
 class VADiterator:
     def __init__(self,
                  trig_sum: float = 0.26,