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| import gradio as gr | |
| import json | |
| import pandas as pd | |
| import collections | |
| import scipy.signal | |
| import numpy as np | |
| from functools import partial | |
| from openwakeword.model import Model | |
| # Load openWakeWord models | |
| model = Model(inference_framework="onnx") | |
| # Define function to process audio | |
| def process_audio(audio, state=collections.defaultdict(partial(collections.deque, maxlen=60))): | |
| # Resample audio to 16khz if needed | |
| if audio[0] != 16000: | |
| data = scipy.signal.resample(audio[1], int(float(audio[1].shape[0])/audio[0]*16000)) | |
| # Get predictions | |
| for i in range(0, len(data), 1280): | |
| chunk = data[i:i+1280] | |
| if len(chunk) == 1280: | |
| prediction = model.predict(chunk) | |
| for key in prediction: | |
| #Fill deque with zeros if it's empty | |
| if len(state[key]) == 0: | |
| state[key].extend(np.zeros(60)) | |
| # Add prediction | |
| state[key].append(prediction[key]) | |
| # Make line plot | |
| dfs = [] | |
| for key in state.keys(): | |
| df = pd.DataFrame({"x": np.arange(len(state[key])), "y": state[key], "Model": key}) | |
| dfs.append(df) | |
| df = pd.concat(dfs) | |
| plot = gr.LinePlot().update(value = df, x='x', y='y', color="Model", y_lim = (0,1), tooltip="Model", | |
| width=600, height=300, x_title="Time (frames)", y_title="Model Score", color_legend_position="bottom") | |
| # Manually adjust how the legend is displayed | |
| tmp = json.loads(plot["value"]["plot"]) | |
| tmp["layer"][0]['encoding']['color']['legend']["direction"] = "vertical" | |
| tmp["layer"][0]['encoding']['color']['legend']["columns"] = 4 | |
| tmp["layer"][0]['encoding']['color']['legend']["labelFontSize"] = 12 | |
| tmp["layer"][0]['encoding']['color']['legend']["titleFontSize"] = 14 | |
| plot["value"]['plot'] = json.dumps(tmp) | |
| return plot, state | |
| # Create Gradio interface and launch | |
| desc = """ | |
| This is a demo of the pre-trained models included in the latest release | |
| of the [openWakeWord](https://github.com/dscripka/openWakeWord) library. | |
| Click on the "record from microphone" button below to start capturing. | |
| The real-time scores from each model will be shown in the line plot. Hover over | |
| each line to see the name of the corresponding model. | |
| Different models will respond to different wake words/phrases (see [the model docs](https://github.com/dscripka/openWakeWord/tree/main/docs/models) for more details). | |
| If everything is working properly, | |
| you should see a spike in the score for a given model after speaking a related word/phrase. Below are some suggested phrases to try! | |
| | Model Name | Word/Phrase | | |
| | --- | --- | | |
| | alexa | "alexa" | | |
| | hey_mycroft | "hey mycroft"| | |
| | weather | "what's the weather", "tell me today's weather" | | |
| | x_minute_timer | "set a timer for 1 minute", "create 1 hour alarm" | | |
| """ | |
| gr_int = gr.Interface( | |
| title = "openWakeWord Live Demo", | |
| description = desc, | |
| css = ".flex {flex-direction: column} .gr-panel {width: 100%}", | |
| fn=process_audio, | |
| inputs=[ | |
| gr.Audio(source="microphone", type="numpy", streaming=True, show_label=False), | |
| "state" | |
| ], | |
| outputs=[ | |
| gr.LinePlot(show_label=False), | |
| "state" | |
| ], | |
| live=True) | |
| gr_int.launch() |