Can anyone explain me what i do wrong

[andres91-gif]

im new to this coding and raspberry, tried arduino few times, was fun and used it to manage ws2812b led stripes to do some stuff, but still want to upgrade my knowings and wanted to try sound reactive leds

tried this code and bumped at the end in this kind of error. would someone explain, where is my mistake

Expression 'alsa_snd_pcm_hw_params_set_period_size_near( pcm, hwParams, &alsaPeriodFrames, &dir )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 924 ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device' ALSA lib conf.c:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5036:(snd_config_expand) Args evaluate error: No such file or directory ALSA lib pcm.c:2565:(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:4568:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5036:(snd_config_expand) Args evaluate error: No such file or directory ALSA lib pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM bluealsa 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 Expression 'paInvalidSampleRate' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2048 Expression 'PaAlsaStreamComponent_InitialConfigure( &self->capture, inParams, self->primeBuffers, hwParamsCapture, &realSr )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2719 Expression 'PaAlsaStream_Configure( stream, inputParameters, outputParameters, sampleRate, framesPerBuffer, &inputLatency, &outputLatency, &hostBufferSizeMode )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 2843 Traceback (most recent call last): File "visualization.py", line 370, in microphone.start_stream(microphone_update) File "/home/pi/dancyPi-audio-reactive-led/python/microphone.py", line 14, in start_stream frames_per_buffer=frames_per_buffer) File "/usr/lib/python2.7/dist-packages/pyaudio.py", line 750, in open stream = Stream(self, *args, kwargs) File "/usr/lib/python2.7/dist-packages/pyaudio.py", line 441, in init self._stream = pa.open(arguments) IOError: [Errno -9997] Invalid sample rate

[poiley]

+1

[boland25]

here is a guide that helped me get my audio up and running on my pi with this code. It walks you through a few ways to help keep your sanity with the audio. Good Luck! https://cdn-learn.adafruit.com/downloads/pdf/usb-audio-cards-with-a-raspberry-pi.pdf.