ReSpeaker Mic Array v2.0

git clone https://github.com/respeaker/usb_4_mic_array.git
cd usb_4_mic_array
python tuning.py -p

python tuning.py AGCONOFF 0

pi@raspberrypi:~/usb_4_mic_array $ sudo python tuning.py DOAANGLE
DOAANGLE: 180

ctrl_transfer(usb.util.CTRL_OUT | usb.util.CTRL_TYPE_VENDOR | usb.util.CTRL_RECIPIENT_DEVICE, 0, command, 0x1C, data, TIMEOUT)

from tuning import Tuning
import usb.core
import usb.util
import time

dev = usb.core.find(idVendor=0x2886, idProduct=0x0018)

if dev:
    Mic_tuning = Tuning(dev)
    print Mic_tuning.direction
    while True:
        try:
            print Mic_tuning.direction
            time.sleep(1)
        except KeyboardInterrupt:
            break

pi@raspberrypi:~/usb_4_mic_array $ sudo python doa.py 
184
183
175
105
104
104
103

from tuning import Tuning
import usb.core
import usb.util
import time

dev = usb.core.find(idVendor=0x2886, idProduct=0x0018)
#print dev
if dev:
    Mic_tuning = Tuning(dev)
    print Mic_tuning.is_voice()
    while True:
        try:
            print Mic_tuning.is_voice()
            time.sleep(1)
        except KeyboardInterrupt:
            break

pi@raspberrypi:~/usb_4_mic_array $ sudo python VAD.py 
0
0
0
1
0
1
0

Input Device id  2  -  ReSpeaker 4 Mic Array (UAC1.0): USB Audio (hw:1,0)

import pyaudio
import wave
import numpy as np

RESPEAKER_RATE = 16000
RESPEAKER_CHANNELS = 6 # change base on firmwares, 1_channel_firmware.bin as 1 or 6_channels_firmware.bin as 6
RESPEAKER_WIDTH = 2
# run getDeviceInfo.py to get index
RESPEAKER_INDEX = 3  # refer to input device id
CHUNK = 1024
RECORD_SECONDS = 3
WAVE_OUTPUT_FILENAME = "output.wav"

p = pyaudio.PyAudio()

stream = p.open(
            rate=RESPEAKER_RATE,
            format=p.get_format_from_width(RESPEAKER_WIDTH),
            channels=RESPEAKER_CHANNELS,
            input=True,
            input_device_index=RESPEAKER_INDEX,)

print("* recording")

frames = [] 

for i in range(0, int(RESPEAKER_RATE / CHUNK * RECORD_SECONDS)):
    data = stream.read(CHUNK)
    # extract channel 0 data from 6 channels, if you want to extract channel 1, please change to [1::6]
    a = np.fromstring(data,dtype=np.int16)[0::6]
    frames.append(a.tostring())

print("* done recording")

stream.stop_stream()
stream.close()
p.terminate()

wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(1)
wf.setsampwidth(p.get_sample_size(p.get_format_from_width(RESPEAKER_WIDTH)))
wf.setframerate(RESPEAKER_RATE)
wf.writeframes(b''.join(frames))
wf.close()

 pip install pyaudio

C:\Users\XXX\Desktop>python get_index.py
Input Device id  0  -  Microsoft Sound Mapper - Input
Input Device id  1  -  ReSpeaker 4 Mic Array (UAC1.0)
Input Device id  2  -  Internal Microphone (Conexant I)

C:\Users\XXX\Desktop>python record.py
* recording
* done recording

 pip install pyaudio

MacBook-Air:Desktop XXX$ python get_index.py 
Input Device id  0  -  Built-in Microphone
Input Device id  2  -  ReSpeaker 4 Mic Array (UAC1.0)

MacBook-Air:Desktop XXX$ python record.py 
2018-03-24 14:53:02.400 Python[2360:16629] 14:53:02.399 WARNING:  140: This application, or a library it uses, is using the deprecated Carbon Component Manager for hosting Audio Units. Support for this will be removed in a future release. Also, this makes the host incompatible with version 3 audio units. Please transition to the API's in AudioComponent.h.
* recording
* done recording

pi@raspberrypi:~/usb_4_mic_array $ python tuning.py -p
name   type max min r/w info
-------------------------------
AECFREEZEONOFF   int 1 0 rw Adaptive Echo Canceler updates inhibit.
                                                            0 = Adaptation enabled
                                                            1 = Freeze adaptation, filter only
AECNORM          float 16 0.25 rw Limit on norm of AEC filter coefficients
AECPATHCHANGE    int 1 0 ro AEC Path Change Detection.
                                                            0 = false (no path change detected)
                                                            1 = true (path change detected)
AECSILENCELEVEL  float 1 1e-09 rw Threshold for signal detection in AEC [-inf .. 0] dBov (Default: -80dBov = 10log10(1x10-8))
AECSILENCEMODE   int 1 0 ro AEC far-end silence detection status. 
                                                            0 = false (signal detected) 
                                                            1 = true (silence detected)
AGCDESIREDLEVEL  float 0.99 1e-08 rw Target power level of the output signal. 
                                                            [−inf .. 0] dBov (default: −23dBov = 10log10(0.005))
AGCGAIN          float 1000 1 rw Current AGC gain factor. 
                                                            [0 .. 60] dB (default: 0.0dB = 20log10(1.0))
AGCMAXGAIN       float 1000 1 rw Maximum AGC gain factor. 
                                                            [0 .. 60] dB (default 30dB = 20log10(31.6))
AGCONOFF         int 1 0 rw Automatic Gain Control. 
                                                            0 = OFF 
                                                            1 = ON
AGCTIME          float 1 0.1 rw Ramps-up / down time-constant in seconds.
CNIONOFF         int 1 0 rw Comfort Noise Insertion.
                                                            0 = OFF
                                                            1 = ON
DOAANGLE         int 359 0 ro DOA angle. Current value. Orientation depends on build configuration.
ECHOONOFF        int 1 0 rw Echo suppression.
                                                            0 = OFF
                                                            1 = ON
FREEZEONOFF      int 1 0 rw Adaptive beamformer updates.
                                                            0 = Adaptation enabled
                                                            1 = Freeze adaptation, filter only
FSBPATHCHANGE    int 1 0 ro FSB Path Change Detection.
                                                            0 = false (no path change detected)
                                                            1 = true (path change detected)
FSBUPDATED       int 1 0 ro FSB Update Decision.
                                                            0 = false (FSB was not updated)
                                                            1 = true (FSB was updated)
GAMMAVAD_SR      float 1000 0 rw Set the threshold for voice activity detection.
                                                            [−inf .. 60] dB (default: 3.5dB 20log10(1.5))
GAMMA_E          float 3 0 rw Over-subtraction factor of echo (direct and early components). min .. max attenuation
GAMMA_ENL        float 5 0 rw Over-subtraction factor of non-linear echo. min .. max attenuation
GAMMA_ETAIL      float 3 0 rw Over-subtraction factor of echo (tail components). min .. max attenuation
GAMMA_NN         float 3 0 rw Over-subtraction factor of non- stationary noise. min .. max attenuation
GAMMA_NN_SR      float 3 0 rw Over-subtraction factor of non-stationary noise for ASR. 
                                                            [0.0 .. 3.0] (default: 1.1)
GAMMA_NS         float 3 0 rw Over-subtraction factor of stationary noise. min .. max attenuation
GAMMA_NS_SR      float 3 0 rw Over-subtraction factor of stationary noise for ASR. 
                                                            [0.0 .. 3.0] (default: 1.0)
HPFONOFF         int 3 0 rw High-pass Filter on microphone signals.
                                                            0 = OFF
                                                            1 = ON - 70 Hz cut-off
                                                            2 = ON - 125 Hz cut-off
                                                            3 = ON - 180 Hz cut-off
MIN_NN           float 1 0 rw Gain-floor for non-stationary noise suppression.
                                                            [−inf .. 0] dB (default: −10dB = 20log10(0.3))
MIN_NN_SR        float 1 0 rw Gain-floor for non-stationary noise suppression for ASR.
                                                            [−inf .. 0] dB (default: −10dB = 20log10(0.3))
MIN_NS           float 1 0 rw Gain-floor for stationary noise suppression.
                                                            [−inf .. 0] dB (default: −16dB = 20log10(0.15))
MIN_NS_SR        float 1 0 rw Gain-floor for stationary noise suppression for ASR.
                                                            [−inf .. 0] dB (default: −16dB = 20log10(0.15))
NLAEC_MODE       int 2 0 rw Non-Linear AEC training mode.
                                                            0 = OFF
                                                            1 = ON - phase 1
                                                            2 = ON - phase 2
NLATTENONOFF     int 1 0 rw Non-Linear echo attenuation.
                                                            0 = OFF
                                                            1 = ON
NONSTATNOISEONOFF int 1 0 rw Non-stationary noise suppression.
                                                            0 = OFF
                                                            1 = ON
NONSTATNOISEONOFF_SR int 1 0 rw Non-stationary noise suppression for ASR.
                                                            0 = OFF
                                                            1 = ON
RT60             float 0.9 0.25 ro Current RT60 estimate in seconds
RT60ONOFF        int 1 0 rw RT60 Estimation for AES. 0 = OFF 1 = ON
SPEECHDETECTED   int 1 0 ro Speech detection status.
                                                            0 = false (no speech detected)
                                                            1 = true (speech detected)
STATNOISEONOFF   int 1 0 rw Stationary noise suppression.
                                                            0 = OFF
                                                            1 = ON
STATNOISEONOFF_SR int 1 0 rw Stationary noise suppression for ASR.
                                                            0 = OFF
                                                            1 = ON
TRANSIENTONOFF   int 1 0 rw Transient echo suppression.
                                                            0 = OFF
                                                            1 = ON
VOICEACTIVITY    int 1 0 ro VAD voice activity status.
                                                            0 = false (no voice activity)
                                                            1 = true (voice activity)

pi@raspberrypi:~/usb_4_mic_array $ sudo python tuning.py DOAANGLE
Traceback (most recent call last):
  File "tuning.py", line 5, in <module>
    import usb.core
ImportError: No module named usb.core
pi@raspberrypi:~/usb_4_mic_array $ sudo pip install pyusb
Collecting pyusb
  Downloading pyusb-1.0.2.tar.gz (54kB)
    100% |████████████████████████████████| 61kB 101kB/s 
Building wheels for collected packages: pyusb
  Running setup.py bdist_wheel for pyusb ... done
  Stored in directory: /root/.cache/pip/wheels/8b/7f/fe/baf08bc0dac02ba17f3c9120f5dd1cf74aec4c54463bc85cf9
Successfully built pyusb
Installing collected packages: pyusb
Successfully installed pyusb-1.0.2
pi@raspberrypi:~/usb_4_mic_array $ sudo python tuning.py DOAANGLE
DOAANGLE: 180