record from input and output devices simultaneously

[marinos123]

Hello,
Is it possible to use input and output device simultaneously? I try the following but no luck:

    def callback(indata, outdata, frame_count, time_info, status):
        indata[:] = outdata
        loop.call_soon_threadsafe(input_queue.put_nowait, (bytes(indata), status))

    stream = sounddevice.RawStream(
        #device=3,
        channels=1,
        samplerate=16000,
        callback=callback,
        blocksize=1024 * 2,
        dtype="int16",
    )

i also try:

• add 2 channels
• set the input and out devices
• assign output data to input data

[marinos123]

hello guys

We have tested the script with varius devices. With Corsair HS45 Surround USB Sound Adapter i was able to capture sound from both microphone and speakers, but with HP X1000 Wireless Gaming Headsetwe are unable to get any data from speakers. Here is the script:

async def mic_stream():
    # This function wraps the raw input stream from the microphone forwarding
    # the blocks to an asyncio.Queue.
    loop = asyncio.get_event_loop()
    input_queue = asyncio.Queue()

    def callback(indata, frame_count, time_info, status):
        loop.call_soon_threadsafe(input_queue.put_nowait, (bytes(indata), status))

    stream = sounddevice.RawInputStream(
        #device=[1,25],
        channels=1,
        samplerate=16000,
        callback=callback,
        blocksize=1024 * 2,
        dtype="int16",
    )
    # Initiate the audio stream and asynchronously yield the audio chunks
    # as they become available.
    with stream:
        while True:
            indata, status = await input_queue.get()
            yield indata, status

and here are the settings from the devices:
Corsair HS45 Surround USB Sound Adapter

   0 Microsoft Sound Mapper - Input, MME (2 in, 0 out)
>  1 Headset Microphone (Corsair HS4, MME (2 in, 0 out)
   2 FrontMic (Realtek High Definiti, MME (2 in, 0 out)
   3 Microsoft Sound Mapper - Output, MME (0 in, 2 out)
<  4 Headset Earphone (Corsair HS45 , MME (0 in, 2 out)
   5 Realtek Digital Output (Realtek, MME (0 in, 2 out)
   6 Speakers (Realtek High Definiti, MME (0 in, 2 out)

2- HP X1000 Wireless Gaming Headset (Sound Research)

   0 Microsoft Sound Mapper - Input, MME (2 in, 0 out)
>  1 Headset Microphone (2- HP X1000, MME (2 in, 0 out)
   2 FrontMic (Realtek High Definiti, MME (2 in, 0 out)
   3 Microsoft Sound Mapper - Output, MME (0 in, 2 out)
<  4 Headset Earphone (2- HP X1000 W, MME (0 in, 2 out)
   5 Realtek Digital Output (Realtek, MME (0 in, 2 out)
   6 Speakers (Realtek High Definiti, MME (0 in, 2 out)   

Can anyone help?