From 77c085ba6996d9f4f8a2072a7cd7d28c78aeff8b Mon Sep 17 00:00:00 2001 From: talksik Date: Thu, 27 Apr 2023 10:34:53 -0700 Subject: [PATCH] moving things around and adding examples for mic hat code --- mic_hat_examples/.gitignore | 139 +++++++ mic_hat_examples/LICENSE | 340 ++++++++++++++++++ mic_hat_examples/README.md | 29 ++ mic_hat_examples/interfaces/apa102.py | 246 +++++++++++++ mic_hat_examples/interfaces/button.py | 15 + mic_hat_examples/interfaces/pixels.py | 150 ++++++++ .../online_service_demos/alexa.py | 53 +++ .../online_service_demos/google_assistant.py | 165 +++++++++ .../recording_examples/get_device_index.py | 11 + mic_hat_examples/recording_examples/play.py | 36 ++ mic_hat_examples/recording_examples/record.py | 41 +++ .../recording_examples/record_one_channel.py | 45 +++ mic_hat_examples/requirements.txt | 3 + .../LICENSE | 0 .../Makefile | 0 .../README.md | 0 .../ac101.c | 0 .../ac101_regs.h | 0 .../ac108.c | 0 .../ac108.h | 0 .../ac108_6mic.state | 0 .../ac108_asound.state | 0 .../ac108_plugin/Makefile | 0 .../ac108_plugin/README.md | 0 .../ac108_plugin/ac108_help.c | 0 .../ac108_plugin/ac108_help.h | 0 .../ac108_plugin/pcm_ac108.c | 0 .../ac10x.h | 0 .../asound_2mic.conf | 0 .../asound_4mic.conf | 0 .../asound_6mic.conf | 0 .../builddtbo.sh | 0 .../default.pa | 0 .../dkms.conf | 0 .../install.sh | 0 .../patches/back-to-v4.19.diff | 0 .../patches/back-to-v5.4.diff | 0 .../patches/back-to-v5.8.diff | 0 .../pulseaudio/91-seeedvoicecard.rules | 0 .../pulseaudio/README.md | 0 .../pulseaudio/pulse_config_4mic/daemon.conf | 0 .../pulseaudio/pulse_config_4mic/default.pa | 0 .../pulse_config_4mic/seeed-voicecard.conf | 0 .../pulseaudio/pulse_config_6mic/daemon.conf | 0 .../pulseaudio/pulse_config_6mic/default.pa | 0 .../pulse_config_6mic/seeed-voicecard.conf | 0 .../pulseaudio/udev_rules_4mic.png | Bin .../pulseaudio/udev_rules_6mic.png | Bin .../seeed-2mic-voicecard-overlay.dts | 0 .../seeed-2mic-voicecard.dtbo | Bin .../seeed-4mic-voicecard-overlay.dts | 0 .../seeed-4mic-voicecard.dtbo | Bin .../seeed-8mic-voicecard-overlay.dts | 0 .../seeed-8mic-voicecard.dtbo | Bin .../seeed-voicecard | 0 .../seeed-voicecard.c | 0 .../seeed-voicecard.service | 0 .../sound-compatible-4.18.h | 0 .../tools/coherence.py | 0 .../tools/phase_test.py | 0 .../ubuntu-prerequisite.sh | 0 .../uninstall.sh | 0 .../wm8960.c | 0 .../wm8960.h | 0 .../wm8960_asound.state | 0 .../.github/ISSUE_TEMPLATE/BUG_ISSUE.yml | 0 .../.github/ISSUE_TEMPLATE/config.yml | 0 .../.github/workflows/stale.yml | 0 .../LICENSE | 0 .../Makefile | 0 .../README.md | 0 .../ac101.c | 0 .../ac101_regs.h | 0 .../ac108.c | 0 .../ac108.h | 0 .../ac108_6mic.state | 0 .../ac108_asound.state | 0 .../ac108_plugin/Makefile | 0 .../ac108_plugin/README.md | 0 .../ac108_plugin/ac108_help.c | 0 .../ac108_plugin/ac108_help.h | 0 .../ac108_plugin/pcm_ac108.c | 0 .../ac10x.h | 0 .../asound_2mic.conf | 0 .../asound_4mic.conf | 0 .../asound_6mic.conf | 0 .../builddtbo.sh | 0 .../default.pa | 0 .../dkms.conf | 0 .../install.sh | 0 .../install_arm64.sh | 0 .../patches/back-to-v4.19.diff | 0 .../patches/back-to-v5.4.diff | 0 .../patches/back-to-v5.8.diff | 0 .../pulseaudio/91-seeedvoicecard.rules | 0 .../pulseaudio/README.md | 0 .../pulseaudio/pulse_config_4mic/daemon.conf | 0 .../pulseaudio/pulse_config_4mic/default.pa | 0 .../pulse_config_4mic/seeed-voicecard.conf | 0 .../pulseaudio/pulse_config_6mic/daemon.conf | 0 .../pulseaudio/pulse_config_6mic/default.pa | 0 .../pulse_config_6mic/seeed-voicecard.conf | 0 .../pulseaudio/udev_rules_4mic.png | Bin .../pulseaudio/udev_rules_6mic.png | Bin .../seeed-2mic-voicecard-overlay.dts | 0 .../seeed-2mic-voicecard.dtbo | Bin .../seeed-4mic-voicecard-overlay.dts | 0 .../seeed-4mic-voicecard.dtbo | Bin .../seeed-8mic-voicecard-overlay.dts | 0 .../seeed-8mic-voicecard.dtbo | Bin .../seeed-voicecard | 0 .../seeed-voicecard.c | 0 .../seeed-voicecard.service | 0 .../sound-compatible-4.18.h | 0 .../tools/coherence.py | 0 .../tools/phase_test.py | 0 .../ubuntu-prerequisite.sh | 0 .../uninstall.sh | 0 .../wm8960.c | 0 .../wm8960.h | 0 .../wm8960_asound.state | 0 121 files changed, 1273 insertions(+) create mode 100644 mic_hat_examples/.gitignore create mode 100644 mic_hat_examples/LICENSE create mode 100644 mic_hat_examples/README.md create mode 100755 mic_hat_examples/interfaces/apa102.py create mode 100644 mic_hat_examples/interfaces/button.py create mode 100755 mic_hat_examples/interfaces/pixels.py create mode 100644 mic_hat_examples/online_service_demos/alexa.py create mode 100644 mic_hat_examples/online_service_demos/google_assistant.py create mode 100644 mic_hat_examples/recording_examples/get_device_index.py create mode 100644 mic_hat_examples/recording_examples/play.py create mode 100644 mic_hat_examples/recording_examples/record.py create mode 100644 mic_hat_examples/recording_examples/record_one_channel.py create mode 100644 mic_hat_examples/requirements.txt rename 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{yudai/seeed-voicecard => seeed-voicecard}/uninstall.sh (100%) rename {yudai/seeed-voicecard => seeed-voicecard}/wm8960.c (100%) rename {yudai/seeed-voicecard => seeed-voicecard}/wm8960.h (100%) rename {yudai/seeed-voicecard => seeed-voicecard}/wm8960_asound.state (100%) diff --git a/mic_hat_examples/.gitignore b/mic_hat_examples/.gitignore new file mode 100644 index 0000000..73358ad --- /dev/null +++ b/mic_hat_examples/.gitignore @@ -0,0 +1,139 @@ +# Byte-compiled / optimized / DLL files +__pycache__/ +*.py[cod] +*$py.class + +# C extensions +*.so + +# Distribution / packaging +.Python +build/ +develop-eggs/ +dist/ +downloads/ +eggs/ +.eggs/ +lib/ +lib64/ +parts/ +sdist/ +var/ +wheels/ +share/python-wheels/ +*.egg-info/ +.installed.cfg +*.egg +MANIFEST + +# PyInstaller +# Usually these files are written by a python script from a template +# before PyInstaller builds the exe, so as to inject date/other infos into it. +*.manifest +*.spec + +# Installer logs +pip-log.txt +pip-delete-this-directory.txt + +# Unit test / coverage reports +htmlcov/ +.tox/ +.nox/ +.coverage +.coverage.* +.cache +nosetests.xml +coverage.xml +*.cover +*.py,cover +.hypothesis/ +.pytest_cache/ +cover/ + +# Translations +*.mo +*.pot + +# Django stuff: +*.log +local_settings.py +db.sqlite3 +db.sqlite3-journal + +# Flask stuff: +instance/ +.webassets-cache + +# Scrapy stuff: +.scrapy + +# Sphinx documentation +docs/_build/ + +# PyBuilder +.pybuilder/ +target/ + +# Jupyter Notebook +.ipynb_checkpoints + +# IPython +profile_default/ +ipython_config.py + +# pyenv +# For a library or package, you might want to ignore these files since the code is +# intended to run in multiple environments; otherwise, check them in: +# .python-version + +# pipenv +# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. +# However, in case of collaboration, if having platform-specific dependencies or dependencies +# having no cross-platform support, pipenv may 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See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + {signature of Ty Coon}, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. + diff --git a/mic_hat_examples/README.md b/mic_hat_examples/README.md new file mode 100644 index 0000000..f8ad26b --- /dev/null +++ b/mic_hat_examples/README.md @@ -0,0 +1,29 @@ +MIC HAT for Raspberry Pi +======================== + +To build voice enabled projects with Google Assistant, Amazon Alexa Voice service and etc. + +[![](https://github.com/SeeedDocument/MIC_HATv1.0_for_raspberrypi/blob/master/img/mic_hatv1.0.png?raw=true)](https://www.seeedstudio.com/ReSpeaker-2-Mics-Pi-HAT-p-2874.html) + + +## Requirements ++ [seeed-voicecard](https://github.com/respeaker/seeed-voicecard), the kernel driver for on-board WM8960 codec ++ [spidev](https://pypi.python.org/pypi/spidev) for on-board SPI interface APA102 LEDs ++ [google-assistant-library](https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-sdk/googlesamples/assistant/library) ++ [avs](https://github.com/respeaker/avs), Alexa Voice Service client python library ++ [voice-engine](https://github.com/voice-engine/voice-engine) + +## Setup +1. Go to [seeed-voicecard](https://github.com/respeaker/seeed-voicecard) and install it +2. Use `raspi-config` to enable SPI. +3. Install `spidev` (`pip install spidev`). +4. Run `python pixels.py` to test the pixels. + +## Build a Google Home like device with Google Assistant SDK +1. Setup [google-assistant-library](https://github.com/googlesamples/assistant-sdk-python/tree/master/google-assistant-sdk/googlesamples/assistant/library) +2. Run `python google_assistant.py --device_model_id 'respeaker-xyz'` + +## Build an Echo like device with Alexa Voice Service +1. `pip install avs voice-engine` +2. Go to [snowboy](https://github.com/Kitt-AI/snowboy) and install its python binding. +3. `python alexa.py` diff --git a/mic_hat_examples/interfaces/apa102.py b/mic_hat_examples/interfaces/apa102.py new file mode 100755 index 0000000..3c1b4cb --- /dev/null +++ b/mic_hat_examples/interfaces/apa102.py @@ -0,0 +1,246 @@ +""" +The code is based on https://github.com/tinue/APA102_Pi +This is the main driver module for APA102 LEDs + +License: GPL V2 +""" + +import spidev +from math import ceil + +RGB_MAP = { 'rgb': [3, 2, 1], 'rbg': [3, 1, 2], 'grb': [2, 3, 1], + 'gbr': [2, 1, 3], 'brg': [1, 3, 2], 'bgr': [1, 2, 3] } + +class APA102: + """ + Driver for APA102 LEDS (aka "DotStar"). + + (c) Martin Erzberger 2016-2017 + + My very first Python code, so I am sure there is a lot to be optimized ;) + + Public methods are: + - set_pixel + - set_pixel_rgb + - show + - clear_strip + - cleanup + + Helper methods for color manipulation are: + - combine_color + - wheel + + The rest of the methods are used internally and should not be used by the + user of the library. + + Very brief overview of APA102: An APA102 LED is addressed with SPI. The bits + are shifted in one by one, starting with the least significant bit. + + An LED usually just forwards everything that is sent to its data-in to + data-out. While doing this, it remembers its own color and keeps glowing + with that color as long as there is power. + + An LED can be switched to not forward the data, but instead use the data + to change it's own color. This is done by sending (at least) 32 bits of + zeroes to data-in. The LED then accepts the next correct 32 bit LED + frame (with color information) as its new color setting. + + After having received the 32 bit color frame, the LED changes color, + and then resumes to just copying data-in to data-out. + + The really clever bit is this: While receiving the 32 bit LED frame, + the LED sends zeroes on its data-out line. Because a color frame is + 32 bits, the LED sends 32 bits of zeroes to the next LED. + As we have seen above, this means that the next LED is now ready + to accept a color frame and update its color. + + So that's really the entire protocol: + - Start by sending 32 bits of zeroes. This prepares LED 1 to update + its color. + - Send color information one by one, starting with the color for LED 1, + then LED 2 etc. + - Finish off by cycling the clock line a few times to get all data + to the very last LED on the strip + + The last step is necessary, because each LED delays forwarding the data + a bit. Imagine ten people in a row. When you yell the last color + information, i.e. the one for person ten, to the first person in + the line, then you are not finished yet. Person one has to turn around + and yell it to person 2, and so on. So it takes ten additional "dummy" + cycles until person ten knows the color. When you look closer, + you will see that not even person 9 knows its own color yet. This + information is still with person 2. Essentially the driver sends additional + zeroes to LED 1 as long as it takes for the last color frame to make it + down the line to the last LED. + """ + # Constants + MAX_BRIGHTNESS = 0b11111 # Safeguard: Set to a value appropriate for your setup + LED_START = 0b11100000 # Three "1" bits, followed by 5 brightness bits + + def __init__(self, num_led, global_brightness=MAX_BRIGHTNESS, + order='rgb', bus=0, device=1, max_speed_hz=8000000): + self.num_led = num_led # The number of LEDs in the Strip + order = order.lower() + self.rgb = RGB_MAP.get(order, RGB_MAP['rgb']) + # Limit the brightness to the maximum if it's set higher + if global_brightness > self.MAX_BRIGHTNESS: + self.global_brightness = self.MAX_BRIGHTNESS + else: + self.global_brightness = global_brightness + + self.leds = [self.LED_START,0,0,0] * self.num_led # Pixel buffer + self.spi = spidev.SpiDev() # Init the SPI device + self.spi.open(bus, device) # Open SPI port 0, slave device (CS) 1 + # Up the speed a bit, so that the LEDs are painted faster + if max_speed_hz: + self.spi.max_speed_hz = max_speed_hz + + def clock_start_frame(self): + """Sends a start frame to the LED strip. + + This method clocks out a start frame, telling the receiving LED + that it must update its own color now. + """ + self.spi.xfer2([0] * 4) # Start frame, 32 zero bits + + + def clock_end_frame(self): + """Sends an end frame to the LED strip. + + As explained above, dummy data must be sent after the last real colour + information so that all of the data can reach its destination down the line. + The delay is not as bad as with the human example above. + It is only 1/2 bit per LED. This is because the SPI clock line + needs to be inverted. + + Say a bit is ready on the SPI data line. The sender communicates + this by toggling the clock line. The bit is read by the LED + and immediately forwarded to the output data line. When the clock goes + down again on the input side, the LED will toggle the clock up + on the output to tell the next LED that the bit is ready. + + After one LED the clock is inverted, and after two LEDs it is in sync + again, but one cycle behind. Therefore, for every two LEDs, one bit + of delay gets accumulated. For 300 LEDs, 150 additional bits must be fed to + the input of LED one so that the data can reach the last LED. + + Ultimately, we need to send additional numLEDs/2 arbitrary data bits, + in order to trigger numLEDs/2 additional clock changes. This driver + sends zeroes, which has the benefit of getting LED one partially or + fully ready for the next update to the strip. An optimized version + of the driver could omit the "clockStartFrame" method if enough zeroes have + been sent as part of "clockEndFrame". + """ + + self.spi.xfer2([0xFF] * 4) + + # Round up num_led/2 bits (or num_led/16 bytes) + #for _ in range((self.num_led + 15) // 16): + # self.spi.xfer2([0x00]) + + + def clear_strip(self): + """ Turns off the strip and shows the result right away.""" + + for led in range(self.num_led): + self.set_pixel(led, 0, 0, 0) + self.show() + + + def set_pixel(self, led_num, red, green, blue, bright_percent=100): + """Sets the color of one pixel in the LED stripe. + + The changed pixel is not shown yet on the Stripe, it is only + written to the pixel buffer. Colors are passed individually. + If brightness is not set the global brightness setting is used. + """ + if led_num < 0: + return # Pixel is invisible, so ignore + if led_num >= self.num_led: + return # again, invisible + + # Calculate pixel brightness as a percentage of the + # defined global_brightness. Round up to nearest integer + # as we expect some brightness unless set to 0 + brightness = int(ceil(bright_percent*self.global_brightness/100.0)) + + # LED startframe is three "1" bits, followed by 5 brightness bits + ledstart = (brightness & 0b00011111) | self.LED_START + + start_index = 4 * led_num + self.leds[start_index] = ledstart + self.leds[start_index + self.rgb[0]] = red + self.leds[start_index + self.rgb[1]] = green + self.leds[start_index + self.rgb[2]] = blue + + + def set_pixel_rgb(self, led_num, rgb_color, bright_percent=100): + """Sets the color of one pixel in the LED stripe. + + The changed pixel is not shown yet on the Stripe, it is only + written to the pixel buffer. + Colors are passed combined (3 bytes concatenated) + If brightness is not set the global brightness setting is used. + """ + self.set_pixel(led_num, (rgb_color & 0xFF0000) >> 16, + (rgb_color & 0x00FF00) >> 8, rgb_color & 0x0000FF, + bright_percent) + + + def rotate(self, positions=1): + """ Rotate the LEDs by the specified number of positions. + + Treating the internal LED array as a circular buffer, rotate it by + the specified number of positions. The number could be negative, + which means rotating in the opposite direction. + """ + cutoff = 4 * (positions % self.num_led) + self.leds = self.leds[cutoff:] + self.leds[:cutoff] + + + def show(self): + """Sends the content of the pixel buffer to the strip. + + Todo: More than 1024 LEDs requires more than one xfer operation. + """ + self.clock_start_frame() + # xfer2 kills the list, unfortunately. So it must be copied first + # SPI takes up to 4096 Integers. So we are fine for up to 1024 LEDs. + data = list(self.leds) + while data: + self.spi.xfer2(data[:32]) + data = data[32:] + self.clock_end_frame() + + + def cleanup(self): + """Release the SPI device; Call this method at the end""" + + self.spi.close() # Close SPI port + + @staticmethod + def combine_color(red, green, blue): + """Make one 3*8 byte color value.""" + + return (red << 16) + (green << 8) + blue + + + def wheel(self, wheel_pos): + """Get a color from a color wheel; Green -> Red -> Blue -> Green""" + + if wheel_pos > 255: + wheel_pos = 255 # Safeguard + if wheel_pos < 85: # Green -> Red + return self.combine_color(wheel_pos * 3, 255 - wheel_pos * 3, 0) + if wheel_pos < 170: # Red -> Blue + wheel_pos -= 85 + return self.combine_color(255 - wheel_pos * 3, 0, wheel_pos * 3) + # Blue -> Green + wheel_pos -= 170 + return self.combine_color(0, wheel_pos * 3, 255 - wheel_pos * 3) + + + def dump_array(self): + """For debug purposes: Dump the LED array onto the console.""" + + print(self.leds) diff --git a/mic_hat_examples/interfaces/button.py b/mic_hat_examples/interfaces/button.py new file mode 100644 index 0000000..fa06dba --- /dev/null +++ b/mic_hat_examples/interfaces/button.py @@ -0,0 +1,15 @@ +import RPi.GPIO as GPIO +import time + +BUTTON = 17 + +GPIO.setmode(GPIO.BCM) +GPIO.setup(BUTTON, GPIO.IN) + +while True: + state = GPIO.input(BUTTON) + if state: + print("off") + else: + print("on") + time.sleep(1) diff --git a/mic_hat_examples/interfaces/pixels.py b/mic_hat_examples/interfaces/pixels.py new file mode 100755 index 0000000..d5f97db --- /dev/null +++ b/mic_hat_examples/interfaces/pixels.py @@ -0,0 +1,150 @@ +""" +LED light pattern like Google Home +""" + +import apa102 +import time +import threading +try: + import queue as Queue +except ImportError: + import Queue as Queue + + +class Pixels: + PIXELS_N = 3 + + def __init__(self): + self.basis = [0] * 3 * self.PIXELS_N + self.basis[0] = 2 + self.basis[3] = 1 + self.basis[4] = 1 + self.basis[7] = 2 + + self.colors = [0] * 3 * self.PIXELS_N + self.dev = apa102.APA102(num_led=self.PIXELS_N) + + self.next = threading.Event() + self.queue = Queue.Queue() + self.thread = threading.Thread(target=self._run) + self.thread.daemon = True + self.thread.start() + + def wakeup(self, direction=0): + def f(): + self._wakeup(direction) + + self.next.set() + self.queue.put(f) + + def listen(self): + self.next.set() + self.queue.put(self._listen) + + def think(self): + self.next.set() + self.queue.put(self._think) + + def speak(self): + self.next.set() + self.queue.put(self._speak) + + def off(self): + self.next.set() + self.queue.put(self._off) + + def _run(self): + while True: + func = self.queue.get() + func() + + def _wakeup(self, direction=0): + for i in range(1, 25): + colors = [i * v for v in self.basis] + self.write(colors) + time.sleep(0.01) + + self.colors = colors + + def _listen(self): + for i in range(1, 25): + colors = [i * v for v in self.basis] + self.write(colors) + time.sleep(0.01) + + self.colors = colors + + def _think(self): + colors = self.colors + + self.next.clear() + while not self.next.is_set(): + colors = colors[3:] + colors[:3] + self.write(colors) + time.sleep(0.2) + + t = 0.1 + for i in range(0, 5): + colors = colors[3:] + colors[:3] + self.write([(v * (4 - i) / 4) for v in colors]) + time.sleep(t) + t /= 2 + + # time.sleep(0.5) + + self.colors = colors + + def _speak(self): + colors = self.colors + gradient = -1 + position = 24 + + self.next.clear() + while not self.next.is_set(): + position += gradient + self.write([(v * position / 24) for v in colors]) + + if position == 24 or position == 4: + gradient = -gradient + time.sleep(0.2) + else: + time.sleep(0.01) + + while position > 0: + position -= 1 + self.write([(v * position / 24) for v in colors]) + time.sleep(0.01) + + # self._off() + + def _off(self): + self.write([0] * 3 * self.PIXELS_N) + + def write(self, colors): + for i in range(self.PIXELS_N): + self.dev.set_pixel(i, int(colors[3*i]), int(colors[3*i + 1]), int(colors[3*i + 2])) + + self.dev.show() + + +pixels = Pixels() + + +if __name__ == '__main__': + while True: + + try: + pixels.wakeup() + time.sleep(3) + pixels.think() + time.sleep(3) + pixels.speak() + time.sleep(3) + pixels.off() + time.sleep(3) + except KeyboardInterrupt: + break + + + pixels.off() + time.sleep(1) diff --git a/mic_hat_examples/online_service_demos/alexa.py b/mic_hat_examples/online_service_demos/alexa.py new file mode 100644 index 0000000..57b5306 --- /dev/null +++ b/mic_hat_examples/online_service_demos/alexa.py @@ -0,0 +1,53 @@ +""" +Hands-free Voice Assistant with Snowboy and Alexa Voice Service. The wake-up keyword is "alexa" + +Requirement: + pip install avs + pip install voice-engine +""" + + +import time +import logging +from voice_engine.source import Source +from voice_engine.kws import KWS +from avs.alexa import Alexa +from pixels import pixels + + +def main(): + logging.basicConfig(level=logging.DEBUG) + + src = Source(rate=16000, frames_size=320) + kws = KWS(model='alexa', sensitivity=0.8) + alexa = Alexa() + + + alexa.state_listener.on_listening = pixels.listen + alexa.state_listener.on_thinking = pixels.think + alexa.state_listener.on_speaking = pixels.speak + alexa.state_listener.on_finished = pixels.off + + + src.link(kws) + kws.link(alexa) + + def on_detected(keyword): + logging.info('detected {}'.format(keyword)) + alexa.listen() + + kws.set_callback(on_detected) + + src.recursive_start() + + while True: + try: + time.sleep(1) + except KeyboardInterrupt: + break + + src.recursive_stop() + + +if __name__ == '__main__': + main() diff --git a/mic_hat_examples/online_service_demos/google_assistant.py b/mic_hat_examples/online_service_demos/google_assistant.py new file mode 100644 index 0000000..66306a7 --- /dev/null +++ b/mic_hat_examples/online_service_demos/google_assistant.py @@ -0,0 +1,165 @@ +#!/usr/bin/env python + +# The code is based on google-assistant-sdk's hotword.py +# LED light is added to notify its status. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from __future__ import print_function + +import argparse +import os.path +import json + +import google.auth.transport.requests +import google.oauth2.credentials + +from google.assistant.library import Assistant +from google.assistant.library.event import EventType +from google.assistant.library.file_helpers import existing_file + +from pixels import pixels + + +DEVICE_API_URL = 'https://embeddedassistant.googleapis.com/v1alpha2' + + +def process_device_actions(event, device_id): + if 'inputs' in event.args: + for i in event.args['inputs']: + if i['intent'] == 'action.devices.EXECUTE': + for c in i['payload']['commands']: + for device in c['devices']: + if device['id'] == device_id: + if 'execution' in c: + for e in c['execution']: + if 'params' in e: + yield e['command'], e['params'] + else: + yield e['command'], None + + +def process_event(event, device_id): + """Pretty prints events. + + Prints all events that occur with two spaces between each new + conversation and a single space between turns of a conversation. + + Args: + event(event.Event): The current event to process. + device_id(str): The device ID of the new instance. + """ + if event.type == EventType.ON_CONVERSATION_TURN_STARTED: + print() + pixels.wakeup() + + print(event) + + if event.type == EventType.ON_END_OF_UTTERANCE: + pixels.think() + + if event.type == EventType.ON_RESPONDING_STARTED: + pixels.speak() + + if event.type == EventType.ON_CONVERSATION_TURN_FINISHED: + if event.args and event.args['with_follow_on_turn']: + pixels.listen() + else: + pixels.off() + print() + + if event.type == EventType.ON_DEVICE_ACTION: + for command, params in process_device_actions(event, device_id): + print('Do command', command, 'with params', str(params)) + + +def register_device(project_id, credentials, device_model_id, device_id): + """Register the device if needed. + + Registers a new assistant device if an instance with the given id + does not already exists for this model. + + Args: + project_id(str): The project ID used to register device instance. + credentials(google.oauth2.credentials.Credentials): The Google + OAuth2 credentials of the user to associate the device + instance with. + device_model_id(str): The registered device model ID. + device_id(str): The device ID of the new instance. + """ + base_url = '/'.join([DEVICE_API_URL, 'projects', project_id, 'devices']) + device_url = '/'.join([base_url, device_id]) + session = google.auth.transport.requests.AuthorizedSession(credentials) + r = session.get(device_url) + print(device_url, r.status_code) + if r.status_code == 404: + print('Registering....') + r = session.post(base_url, data=json.dumps({ + 'id': device_id, + 'model_id': device_model_id, + 'client_type': 'SDK_LIBRARY' + })) + if r.status_code != 200: + raise Exception('failed to register device: ' + r.text) + print('\rDevice registered.') + + +def main(): + parser = argparse.ArgumentParser( + formatter_class=argparse.RawTextHelpFormatter) + parser.add_argument('--credentials', type=existing_file, + metavar='OAUTH2_CREDENTIALS_FILE', + default=os.path.join( + os.path.expanduser('~/.config'), + 'google-oauthlib-tool', + 'credentials.json' + ), + help='Path to store and read OAuth2 credentials') + parser.add_argument('--device_model_id', type=str, + metavar='DEVICE_MODEL_ID', required=True, + help='The device model ID registered with Google') + parser.add_argument( + '--project_id', + type=str, + metavar='PROJECT_ID', + required=False, + help='The project ID used to register device instances.') + parser.add_argument( + '-v', + '--version', + action='version', + version='%(prog)s ' + + Assistant.__version_str__()) + + args = parser.parse_args() + with open(args.credentials, 'r') as f: + credentials = google.oauth2.credentials.Credentials(token=None, + **json.load(f)) + + with Assistant(credentials, args.device_model_id) as assistant: + events = assistant.start() + + print('device_model_id:', args.device_model_id + '\n' + + 'device_id:', assistant.device_id + '\n') + + if args.project_id: + register_device(args.project_id, credentials, + args.device_model_id, assistant.device_id) + + for event in events: + process_event(event, assistant.device_id) + + +if __name__ == '__main__': + main() diff --git a/mic_hat_examples/recording_examples/get_device_index.py b/mic_hat_examples/recording_examples/get_device_index.py new file mode 100644 index 0000000..d74eed4 --- /dev/null +++ b/mic_hat_examples/recording_examples/get_device_index.py @@ -0,0 +1,11 @@ +import pyaudio + +p = pyaudio.PyAudio() +info = p.get_host_api_info_by_index(0) +numdevices = info.get('deviceCount') + +for i in range(0, numdevices): + if (p.get_device_info_by_host_api_device_index(0, i).get('maxInputChannels')) > 0: + print("Input Device id ", i, " - ", p.get_device_info_by_host_api_device_index(0, i).get('name')) + else: + print("Output Device id ", i, " - ", p.get_device_info_by_host_api_device_index(0, i).get('name')) diff --git a/mic_hat_examples/recording_examples/play.py b/mic_hat_examples/recording_examples/play.py new file mode 100644 index 0000000..0351390 --- /dev/null +++ b/mic_hat_examples/recording_examples/play.py @@ -0,0 +1,36 @@ +import pyaudio +import wave +import sys + +# length of data to read. +chunk = 1024 +RESPEAKER_INDEX = 1 +# validation. If a wave file hasn't been specified, exit. +if len(sys.argv) < 2: + print("Plays a wave file.\n\n" + "Usage: %s filename.wav" % sys.argv[0]) + sys.exit(-1) + +# open the file for reading. +wf = wave.open(sys.argv[1], 'rb') + +# create an audio object +p = pyaudio.PyAudio() + +# open stream based on the wave object which has been input. +stream = p.open(format = p.get_format_from_width(wf.getsampwidth()), + channels = wf.getnchannels(), + rate = wf.getframerate(), + output = True, + output_device_index = RESPEAKER_INDEX) + +# read data (based on the chunk size) +data = wf.readframes(chunk) +# play stream (looping from beginning of file to the end) +while data: + # writing to the stream is what *actually* plays the sound. + stream.write(data) + data = wf.readframes(chunk) + +# cleanup stuff. +stream.close() +p.terminate() diff --git a/mic_hat_examples/recording_examples/record.py b/mic_hat_examples/recording_examples/record.py new file mode 100644 index 0000000..549f793 --- /dev/null +++ b/mic_hat_examples/recording_examples/record.py @@ -0,0 +1,41 @@ +import pyaudio +import wave + +RESPEAKER_RATE = 16000 +RESPEAKER_CHANNELS = 2 +RESPEAKER_WIDTH = 2 +# run getDeviceInfo.py to get index +RESPEAKER_INDEX = 1 # refer to input device id +CHUNK = 1024 +RECORD_SECONDS = 5 +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) + frames.append(data) + +print("* done recording") + +stream.stop_stream() +stream.close() +p.terminate() + +wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb') +wf.setnchannels(RESPEAKER_CHANNELS) +wf.setsampwidth(p.get_sample_size(p.get_format_from_width(RESPEAKER_WIDTH))) +wf.setframerate(RESPEAKER_RATE) +wf.writeframes(b''.join(frames)) +wf.close() diff --git a/mic_hat_examples/recording_examples/record_one_channel.py b/mic_hat_examples/recording_examples/record_one_channel.py new file mode 100644 index 0000000..aef5c2d --- /dev/null +++ b/mic_hat_examples/recording_examples/record_one_channel.py @@ -0,0 +1,45 @@ +import pyaudio +import wave +import numpy as np + +RESPEAKER_RATE = 16000 +RESPEAKER_CHANNELS = 2 +RESPEAKER_WIDTH = 2 +# run getDeviceInfo.py to get index +RESPEAKER_INDEX = 1 # refer to input device id +CHUNK = 1024 +RECORD_SECONDS = 3 +WAVE_OUTPUT_FILENAME = "output_one_channel.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 2 channels, if you want to extract channel 1, please change to [1::2] + a = np.fromstring(data,dtype=np.int16)[0::2] + 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() + diff --git a/mic_hat_examples/requirements.txt b/mic_hat_examples/requirements.txt new file mode 100644 index 0000000..2390f57 --- /dev/null +++ b/mic_hat_examples/requirements.txt @@ -0,0 +1,3 @@ +spidev +rpi.gpio +pyaudio diff --git a/yudai/seeed-voicecard-fork-for-higher-kernel/LICENSE b/seeed-voicecard-fork-for-higher-kernel/LICENSE similarity index 100% rename from yudai/seeed-voicecard-fork-for-higher-kernel/LICENSE rename to seeed-voicecard-fork-for-higher-kernel/LICENSE diff --git a/yudai/seeed-voicecard-fork-for-higher-kernel/Makefile b/seeed-voicecard-fork-for-higher-kernel/Makefile 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