pyaudio

问题 So I'm follow a tutorial where we create a signal and filter the noise using fftpack. Problem 1: I'm trying to plot the filtered and unfiltered signal noise on a graph so that I can see them side by side. Getting error: Warning (from warnings module): File "C:\Python39\lib\site-packages\numpy\core_asarray.py", line 83 return array(a, dtype, copy=False, order=order) ComplexWarning: Casting complex values to real discards the imaginary part I think this is causing the error: y = sig x = time

问题 I have this program that listens to the microphone and tries to recognize what was said: #!/usr/bin/env python3 import speech_recognition recognizer = speech_recognition.Recognizer() class Recognition: def __init__(self): self.recognizer = speech_recognition.Recognizer() def listen(self): with speech_recognition.Microphone() as source: self.recognizer.adjust_for_ambient_noise(source) self.audio = self.recognizer.listen(source) def recognize_sphinx(self): decoder = self.recognizer.recognize

问题 I'm trying to run an FFT on a few high frequency bins of a continuous audio stream from a USB microphone input using a Raspberry Pi Zero W. The Windows PC prototype runs but when deploying to the Pi there are issues with "pyaudio" which does not have a Python3.7 wheel(?) for ARM, only Python3.6. The RPi OS install includes 3.7 and I think all I want to do is downgrade to 3.6. This is a fixed purpose device so virtualenv is not needed (and I had issues trying it) and can't burden the Pi Zero

问题 I'm trying to run an FFT on a few high frequency bins of a continuous audio stream from a USB microphone input using a Raspberry Pi Zero W. The Windows PC prototype runs but when deploying to the Pi there are issues with "pyaudio" which does not have a Python3.7 wheel(?) for ARM, only Python3.6. The RPi OS install includes 3.7 and I think all I want to do is downgrade to 3.6. This is a fixed purpose device so virtualenv is not needed (and I had issues trying it) and can't burden the Pi Zero

问题 I'm trying to run an FFT on a few high frequency bins of a continuous audio stream from a USB microphone input using a Raspberry Pi Zero W. The Windows PC prototype runs but when deploying to the Pi there are issues with "pyaudio" which does not have a Python3.7 wheel(?) for ARM, only Python3.6. The RPi OS install includes 3.7 and I think all I want to do is downgrade to 3.6. This is a fixed purpose device so virtualenv is not needed (and I had issues trying it) and can't burden the Pi Zero

问题 I'm trying to run an FFT on a few high frequency bins of a continuous audio stream from a USB microphone input using a Raspberry Pi Zero W. The Windows PC prototype runs but when deploying to the Pi there are issues with "pyaudio" which does not have a Python3.7 wheel(?) for ARM, only Python3.6. The RPi OS install includes 3.7 and I think all I want to do is downgrade to 3.6. This is a fixed purpose device so virtualenv is not needed (and I had issues trying it) and can't burden the Pi Zero

问题 I'm trying to use PyAudio to simply reproduce a wav file using the non-blocking IO code available here: PyAudio documentation. Differently from the documentation, I'm trying to use numpy input data instead of bytes, so i'm using librosa to load my .wav file instead of wave as shown in the documentation. My code is the following one, it's self contained and reproducible, you just have to change the filename with the one of a wave audio you want to reproduce: import pyaudio import wave import

问题 In the code, first I'm opening wav file called output_test.wav. I then filter the noise from the signal using fftpack. Problem : I'm trying to convert the filtered signal i.e. filtered_sig array into wav file properly. Currently when i open TestFiltered.wav I get the error: "The item was encoded into a format not supported: 0xc00d5212" Upon further investigation it seems i'm not filtering noise correctly? I think the error comes from the last 2 lines: filteredwrite = np.fft.irfft(filtered_sig

问题 In the code, first I'm opening wav file called output_test.wav. I then filter the noise from the signal using fftpack. Problem : I'm trying to convert the filtered signal i.e. filtered_sig array into wav file properly. Currently when i open TestFiltered.wav I get the error: "The item was encoded into a format not supported: 0xc00d5212" Upon further investigation it seems i'm not filtering noise correctly? I think the error comes from the last 2 lines: filteredwrite = np.fft.irfft(filtered_sig

问题 In the code, first I'm opening wav file called output_test.wav. I then filter the noise from the signal using fftpack. Problem : I'm trying to convert the filtered signal i.e. filtered_sig array into wav file properly. Currently when i open TestFiltered.wav I get the error: "The item was encoded into a format not supported: 0xc00d5212" Upon further investigation it seems i'm not filtering noise correctly? I think the error comes from the last 2 lines: filteredwrite = np.fft.irfft(filtered_sig