Python example of DOA for any sound?

info about ReSpeaker series products

Moderators: lily.li, violet, seth.welday

Post Reply
charlesjevans
Pre-kindergarten
Pre-kindergarten
Posts: 1
Joined: Tue Nov 27, 2018 11:13 am

Python example of DOA for any sound?

Post by charlesjevans » Tue Nov 27, 2018 11:26 am

My respeaker 4 mic array for raspberry pi installed fine. Does anyone know how to get the direction of arrival for any sound, not just voice? I want to get the degrees (0-360) of any sound loud enough to activate the microphone array. No speech recognition, just the direction of arrival. Thanks! It seems simple but I can't figure it out.

bill.yu
Junior-7
Junior-7
Posts: 732
Joined: Mon Apr 02, 2018 11:05 am

Re: Python example of DOA for any sound?

Post by bill.yu » Thu Nov 29, 2018 3:53 pm

Hi there,

1. install the dependencies

sudo apt-get install portaudio19-dev
pip install webrtcvad
pip install pyaudio
pip install pyusb

2. run the vad_doa.py

git clone https://github.com/respeaker/mic_array.git
cd mic_array
python vad_doa.py

3. result:


pi@raspberrypi:~/mic_array $ python vad_doa.py
No USB device found
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4996:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM bluealsa
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4996:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM bluealsa
(0, 'bcm2835 ALSA: - (hw:0,0)', 0L, 2L)
(1, 'bcm2835 ALSA: IEC958/HDMI (hw:0,1)', 0L, 2L)
(2, 'seeed-4mic-voicecard: - (hw:1,0)', 4L, 0L)
Use seeed-4mic-voicecard: - (hw:1,0)
11111110000000000000000000000000000000000000000000000000000000111111111111111100
194
0000000000000000000000000000000000000000000000000000000000000001111111110000000000000000000000000000000000000000000000000000000000000000000111111111111111111111
194
111111110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011111111111
194
11111111111111111111
194
110000000000000000000000000000000000000111111111111111111111
194
11111111111111111111
194
11111111111111111111
194
00000000000000000000000000000000000000000000000000000000000000000000111111110000000000000000111111111111111110000000000000111111111111111111
358
11111111111111111111
14
11111111111111111111
30
11111111111111111111
14

Post Reply