in_out_micro/to_virtual_micro.py

import time
import librosa
import numpy as np
import sounddevice as sd

def select_device():
    devices = sd.query_devices()
    input_devices = [device for device in devices if device['max_input_channels'] > 0]
    device_names = [device['name'] for device in input_devices]

    # Check for "Sound Mixer"
    for name in input_devices:
        if "Sound Mixer" in name:
            return name

    # Check for "CABLE Output"
    for name in input_devices:
        if "CABLE Input" in name:
            return name

# 'CABLE Input (VB-Audio Virtual Cable)'
def push_to_mic(data, sr, device_name):
    # path = "audios/audios/input_audios/5g_Viet.mp3"
    # data, sr = librosa.load(path)

    # devices[11]
    # {'name': 'CABLE Input (VB-Audio Virtual Cable)',
    #  'index': 11,
    #  'hostapi': 1,
    #  'max_input_channels': 0,
    #  'max_output_channels': 8,
    #  'default_low_input_latency': 0.0,
    #  'default_low_output_latency': 0.12,
    #  'default_high_input_latency': 0.0,
    #  'default_high_output_latency': 0.24,
    #  'default_samplerate': 44100.0}

    # devicename = select_device()
    #'CABLE Input (VB-Audio Virtual Cable), Windows DirectSound'#'Speakers (Realtek(R) Audio), MME'
    
    print(f"Pushing data to {device_name}")  
    # Play the audio through 'headphone' output device
    sd.play(data, sr, device=device_name)
    sd.wait()  # Wait until file is done playing
    sd.stop()

if __name__ == "__main__":
    data, sr = librosa.load('audios/audios/output_audios/mic.mp3')
    device_name = 'CABLE Input (VB-Audio Virtual Cable), Windows DirectSound'
    push_to_mic(data, sr, device_name)