windows – How can I record system audio using python-sounddevice while using bluetooth earphones?

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I am using python-sounddevice to record system audio on Windows. Usually, I can use “(Realtek HD Audio Stereo input), Windows WDM-KS (2 in, 0 out)” to get system sound.

But after connecting to my earphones via bluetooth, I can no more record the sound played by the system. All device python-sounddevices detected was listed below.

0 Microsoft Sound Mapper – Input, MME (2 in, 0 out)
1 麦克风 (Realtek High Definition Au, MME (2 in, 0 out)
2 CABLE Output (VB-Audio Virtual , MME (2 in, 0 out)
3 Line 1 (Virtual Audio Cable), MME (2 in, 0 out)
4 Microsoft Sound Mapper – Output, MME (0 in, 2 out)
5 耳机 (1MORE ComfoBuds Pro Stereo), MME (0 in, 2 out)
6 扬声器 (Realtek High Definition Au, MME (0 in, 2 out)
7 Realtek Digital Output (Realtek, MME (0 in, 2 out)
8 Line 1 (Virtual Audio Cable), MME (0 in, 2 out)
9 CABLE Input (VB-Audio Virtual C, MME (0 in, 2 out)
10 主声音捕获驱动程序, Windows DirectSound (2 in, 0 out)
11 麦克风 (Realtek High Definition Audio), Windows DirectSound (2 in, 0 out)
12 CABLE Output (VB-Audio Virtual Cable), Windows DirectSound (2 in, 0 out)
13 Line 1 (Virtual Audio Cable), Windows DirectSound (2 in, 0 out)
14 主声音驱动程序, Windows DirectSound (0 in, 2 out)
15 耳机 (1MORE ComfoBuds Pro Stereo), Windows DirectSound (0 in, 2 out)
16 扬声器 (Realtek High Definition Audio), Windows DirectSound (0 in, 2 out)
17 Realtek Digital Output (Realtek High Definition Audio), Windows DirectSound (0 in, 2 out)
18 Line 1 (Virtual Audio Cable), Windows DirectSound (0 in, 2 out)
19 CABLE Input (VB-Audio Virtual Cable), Windows DirectSound (0 in, 2 out)
20 扬声器 (Realtek High Definition Audio), Windows WASAPI (0 in, 2 out)
21 Realtek Digital Output (Realtek High Definition Audio), Windows WASAPI (0 in, 2 out)
22 Line 1 (Virtual Audio Cable), Windows WASAPI (0 in, 2 out)
23 耳机 (1MORE ComfoBuds Pro Stereo), Windows WASAPI (0 in, 2 out)
24 CABLE Input (VB-Audio Virtual Cable), Windows WASAPI (0 in, 2 out)
25 CABLE Output (VB-Audio Virtual Cable), Windows WASAPI (2 in, 0 out)
26 Line 1 (Virtual Audio Cable), Windows WASAPI (2 in, 0 out)
27 麦克风 (Realtek High Definition Audio), Windows WASAPI (2 in, 0 out)
28 线路 (), Windows WDM-KS (2 in, 0 out)
29 Line Out (Virtual Cable 1), Windows WDM-KS (0 in, 8 out)
30 Mic 1 (Virtual Cable 1), Windows WDM-KS (8 in, 0 out)
31 Line 1 (Virtual Cable 1), Windows WDM-KS (8 in, 0 out)
32 S/PDIF 1 (Virtual Cable 1), Windows WDM-KS (8 in, 0 out)
33 立体声混音 (Realtek HD Audio Stereo input), Windows WDM-KS (2 in, 0 out)
34 Speakers (Realtek HD Audio output), Windows WDM-KS (0 in, 2 out)
35 麦克风 (Realtek HD Audio Mic input), Windows WDM-KS (2 in, 0 out)
36 SPDIF Out (Realtek HDA SPDIF Out), Windows WDM-KS (0 in, 2 out)
37 CABLE Output (VB-Audio Point), Windows WDM-KS (8 in, 0 out)
38 Speakers (VB-Audio Point), Windows WDM-KS (0 in, 8 out)
39 Output (@System32\drivers\bthhfenum.sys,#4;%1 Hands-Free HF Audio%0
;(有一头老母猪)), Windows WDM-KS (0 in, 1 out)
40 Input (@System32\drivers\bthhfenum.sys,#4;%1 Hands-Free HF Audio%0
;(有一头老母猪)), Windows WDM-KS (1 in, 0 out)
41 耳机 (), Windows WDM-KS (0 in, 2 out)

I trys every devices, but I can’t record system audio from any of them.

So how can I record system audio using python-sounddevice while using bluetooth earphones?

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