How to Record Audio from Your Microphone in Python

import pyaudio
import wave

def record_audio(filename: str, duration: int = 5, sample_rate: int = 44100, chunk: int = 1024):
    """Record audio from default microphone and save as WAV file."""
    audio_format = pyaudio.paInt16  # 16-bit resolution
    channels = 1  # Mono
    
    p = pyaudio.PyAudio()
    
    stream = p.open(format=audio_format,
                    channels=channels,
                    rate=sample_rate,
                    input=True,
                    frames_per_buffer=chunk)
    
    print(f"Recording for {duration} seconds...")
    frames = []
    for _ in range(0, int(sample_rate / chunk * duration)):
        data = stream.read(chunk)
        frames.append(data)
    print("Recording finished.")
    
    stream.stop_stream()
    stream.close()
    p.terminate()
    
    with wave.open(filename, 'wb') as wf:
        wf.setnchannels(channels)
        wf.setsampwidth(p.get_sample_size(audio_format))
        wf.setframerate(sample_rate)
        wf.writeframes(b''.join(frames))
    
    print(f"Audio saved to {filename}")

if __name__ == "__main__":
    record_audio("my_recording.wav", duration=3)  # Quick 3-second demo