app.py

import gradio as gr
import numpy as np

def process_audio(audio):
    # This function will receive audio data from the client
    # and can perform any server-side processing
    # For this example, we'll just return the audio as-is
    return audio

with gr.Blocks() as demo:
    audio_input = gr.Audio(sources="microphone", streaming=True, visible=False)
    audio_output = gr.Audio(streaming=True, visible=False)
    
    # Custom HTML for Web Audio API
    html = gr.HTML("""
    <button id="startButton">Start</button>
    <button id="stopButton">Stop</button>
    <div id="status"></div>
    
    <script>
    let audioContext;
    let mediaStreamSource;
    let processor;
    let recording = false;
    
    async function startRecording() {
        audioContext = new (window.AudioContext || window.webkitAudioContext)();
        const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
        mediaStreamSource = audioContext.createMediaStreamSource(stream);
        
        processor = audioContext.createScriptProcessor(1024, 1, 1);
        mediaStreamSource.connect(processor);
        processor.connect(audioContext.destination);
        
        processor.onaudioprocess = function(e) {
            if (!recording) return;
            const audioData = e.inputBuffer.getChannelData(0);
            // Send audio data to the server
            gradioApp().querySelector('#component-0').querySelector('input[type=file]').files = new FileList([new File([audioData], 'audio.wav', {type: 'audio/wav'})]);
            gradioApp().querySelector('#component-0').querySelector('button[type=submit]').click();
        };
        
        recording = true;
        document.getElementById('status').textContent = 'Recording...';
    }
    
    function stopRecording() {
        if (processor) {
            processor.disconnect();
            mediaStreamSource.disconnect();
        }
        recording = false;
        document.getElementById('status').textContent = 'Stopped';
    }
    
    document.getElementById('startButton').addEventListener('click', startRecording);
    document.getElementById('stopButton').addEventListener('click', stopRecording);
    </script>
    """)
    
    audio_input.stream(process_audio, inputs=audio_input, outputs=audio_output)

if __name__ == "__main__":
    demo.launch()