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scottlawsonbc / audio-reactive-led-strip

:musical_note: :rainbow: Real-time LED strip music visualization using Python and the ESP8266 or Raspberry Pi
MIT License
2.67k stars 642 forks source link

Running visualization.py breaks the LED strip until reboot #334

Closed Czechball closed 2 years ago

Czechball commented 3 years ago

Hello, I have a very weird issue. Every time I run sudo python3 visualization.py on my Raspberry Pi, it outputs pretty much random colors (mostly white) that blink seemingly randomly, even tho there are some patterns that kinda react to music. After exiting this via ctrl+c and trying to run any other scripts to output anything on the LED strip, it's broken (no or random colors light up) until I reboot the Raspberry Pi. I can run the rpi_ws281x strandtest without any issues and even the led.py strandtest included in this project (without running visualization.py before of course). I tried running these both with and without 3 to 5 V logic level shifter, result was the same.

This is how the LED strip look like when running visualization.py: https://youtu.be/k11jUPTRwSs

My specs: Raspberry Pi 2B 180 pixel RGBW LED strip Python 3.7.3 5V 4A PSU powering the entire setup (I measured the LED strip to max out at around 2.5A so it should be enough)

I have also modified led.py with this patch to fix the wrong import name: https://github.com/drakeapps/audio-reactive-led-strip/commit/726507f3d322afe4449b8a338cfffa8caeddee21

Visualization.py output:

ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.front.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM front
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround51.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround21
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround51.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround21
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround40.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround40
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround51.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround41
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround51.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround50
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround51.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround51
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.surround71.0:CARD=1'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM surround71
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.iec958.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM iec958
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.iec958.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM spdif
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.iec958.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM spdif
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused

ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused

ALSA lib pcm_a52.c:823:(_snd_pcm_a52_open) a52 is only for playback
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'cards.bcm2835_headpho.pcm.iec958.0:CARD=1,AES0=6,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5047:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM iec958:{AES0 0x6 AES1 0x82 AES2 0x0 AES3 0x2  CARD 1}
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock

Here's my config.py:

"""Settings for audio reactive LED strip"""
from __future__ import print_function
from __future__ import division
import os

#DEVICE = 'esp8266'
DEVICE = 'pi'
"""Device used to control LED strip. Must be 'pi',  'esp8266' or 'blinkstick'

'esp8266' means that you are using an ESP8266 module to control the LED strip
and commands will be sent to the ESP8266 over WiFi.

'pi' means that you are using a Raspberry Pi as a standalone unit to process
audio input and control the LED strip directly.

'blinkstick' means that a BlinkstickPro is connected to this PC which will be used
to control the leds connected to it.
"""

if DEVICE == 'esp8266':
    UDP_IP = '192.168.0.150'
    """IP address of the ESP8266. Must match IP in ws2812_controller.ino"""
    UDP_PORT = 7777
    """Port number used for socket communication between Python and ESP8266"""
    SOFTWARE_GAMMA_CORRECTION = False
    """Set to False because the firmware handles gamma correction + dither"""

if DEVICE == 'pi':
    LED_PIN = 18
    """GPIO pin connected to the LED strip pixels (must support PWM)"""
    LED_FREQ_HZ = 800000
    """LED signal frequency in Hz (usually 800kHz)"""
    LED_DMA = 5
    """DMA channel used for generating PWM signal (try 5)"""
    BRIGHTNESS = 255
    """Brightness of LED strip between 0 and 255"""
    LED_INVERT = False
    """Set True if using an inverting logic level converter"""
    SOFTWARE_GAMMA_CORRECTION = True
    """Set to True because Raspberry Pi doesn't use hardware dithering"""

if DEVICE == 'blinkstick':
    SOFTWARE_GAMMA_CORRECTION = True
    """Set to True because blinkstick doesn't use hardware dithering"""

USE_GUI = False
"""Whether or not to display a PyQtGraph GUI plot of visualization"""

DISPLAY_FPS = False
"""Whether to display the FPS when running (can reduce performance)"""

N_PIXELS = 180
"""Number of pixels in the LED strip (must match ESP8266 firmware)"""

GAMMA_TABLE_PATH = os.path.join(os.path.dirname(__file__), 'gamma_table.npy')
"""Location of the gamma correction table"""

MIC_RATE = 44100
"""Sampling frequency of the microphone in Hz"""

FPS = 45
"""Desired refresh rate of the visualization (frames per second)

FPS indicates the desired refresh rate, or frames-per-second, of the audio
visualization. The actual refresh rate may be lower if the computer cannot keep
up with desired FPS value.

Higher framerates improve "responsiveness" and reduce the latency of the
visualization but are more computationally expensive.

Low framerates are less computationally expensive, but the visualization may
appear "sluggish" or out of sync with the audio being played if it is too low.

The FPS should not exceed the maximum refresh rate of the LED strip, which
depends on how long the LED strip is.
"""
_max_led_FPS = int(((N_PIXELS * 30e-6) + 50e-6)**-1.0)
assert FPS <= _max_led_FPS, 'FPS must be <= {}'.format(_max_led_FPS)

MIN_FREQUENCY = 68
"""Frequencies below this value will be removed during audio processing"""

MAX_FREQUENCY = 4188
"""Frequencies above this value will be removed during audio processing"""

N_FFT_BINS = 24
"""Number of frequency bins to use when transforming audio to frequency domain

Fast Fourier transforms are used to transform time-domain audio data to the
frequency domain. The frequencies present in the audio signal are assigned
to their respective frequency bins. This value indicates the number of
frequency bins to use.

A small number of bins reduces the frequency resolution of the visualization
but improves amplitude resolution. The opposite is true when using a large
number of bins. More bins is not always better!

There is no point using more bins than there are pixels on the LED strip.
"""

N_ROLLING_HISTORY = 2
"""Number of past audio frames to include in the rolling window"""

MIN_VOLUME_THRESHOLD = 0.05
"""No music visualization displayed if recorded audio volume below threshold"""
Czechball commented 3 years ago

UPDATE: I just realized I tried to get this working on my Raspberry Pi 3B+, so I reconnected the cables and powered it up, and surprise - it works without an issue. So I thought - well, maybe the model 2 B is just too slow to run this? But just to be sure, I swapped the SD card from my 3B+ (which worked) to the model 2B, and it works fine too, just with less FPS. So there's most likely an issue in my config on the original system... I'll investigate and compare the systems, but still, this is a very weird issue...,

joeybab3 commented 3 years ago

It may be that it's too slow and somehow improperly closes something or it could also be due to the way each board handles io/audio?

Czechball commented 3 years ago

I'm not sure. The thing is that, in the end, it worked fine on both systems.

joeybab3 commented 3 years ago

Ok got ya, if that is the case and we can no longer identify the issue I will close this issue.