audio

问题 i'm trying to use librosa to generate some data by cutting 1s pieces from some .wav file with a duration of 60s. This part works, i create all my files and i can also listen to them via any player, but if i try to open them with librosa.load i receive this error: >>> librosa.load('.\\train\\audio\\silence\\0doing_the_dishes.wav', sr=None) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\gionata\AppData\Local\Programs\Python\Python36\lib\site\packages

问题 i'm trying to use librosa to generate some data by cutting 1s pieces from some .wav file with a duration of 60s. This part works, i create all my files and i can also listen to them via any player, but if i try to open them with librosa.load i receive this error: >>> librosa.load('.\\train\\audio\\silence\\0doing_the_dishes.wav', sr=None) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\gionata\AppData\Local\Programs\Python\Python36\lib\site\packages

问题 #complie by python3 only_test.py import pyaudio import numpy as np import wave import time import math #from pydub import AudioSegment #from pydub.playback import play #from scipy.signal import iirfilter from scipy import signal RATE = 48000 CHUNK = 4096 WIDTH = 2 volume = 0.0 duration = 1.0 #SHORT_NORMALIZE = (1.0/32768.0) #INPUT_BLOCK_TIME = 1 #INPUT_BLOCK_PER_BLOCK = int(RATE*INPUT_BLOCK_TIME) while True: #use a blackman window window = np.blackman(CHUNK) #load audio stream p = pyaudio

问题 #complie by python3 only_test.py import pyaudio import numpy as np import wave import time import math #from pydub import AudioSegment #from pydub.playback import play #from scipy.signal import iirfilter from scipy import signal RATE = 48000 CHUNK = 4096 WIDTH = 2 volume = 0.0 duration = 1.0 #SHORT_NORMALIZE = (1.0/32768.0) #INPUT_BLOCK_TIME = 1 #INPUT_BLOCK_PER_BLOCK = int(RATE*INPUT_BLOCK_TIME) while True: #use a blackman window window = np.blackman(CHUNK) #load audio stream p = pyaudio

问题 I have bought a soundcard: Focusrite Scarlett 4i4 3rd Gen , with 4 outputs channels. I also have 4 speakers and I will link each speaker with the soundcard. I would like to be able to set separately the volume of each speaker, with maybe a tkinter interface (ultimately, but that is not the point). I have seen that we could have plenty of different librairies (I'm using windows 10 for this project): the ones that seems to be interesting are sounddevice and soundcard. I would though like to

问题 I have bought a soundcard: Focusrite Scarlett 4i4 3rd Gen , with 4 outputs channels. I also have 4 speakers and I will link each speaker with the soundcard. I would like to be able to set separately the volume of each speaker, with maybe a tkinter interface (ultimately, but that is not the point). I have seen that we could have plenty of different librairies (I'm using windows 10 for this project): the ones that seems to be interesting are sounddevice and soundcard. I would though like to

问题 I want to make an app like this. This app is mosquito repellent app which produces sound of some frequency. I don't want it to limit to one sound. I want to generate and play sounds of different frequencies for different purposes. How can I do that in swift IOS. How I can create sound of a specific frequency in swift ios? 回答1: Swift 4.2: create this class in your project. import Foundation import AudioUnit import AVFoundation final class ToneOutputUnit: NSObject { var auAudioUnit: AUAudioUnit

问题 I need to perform FFT and I have a sound sample .wav format. The function needs double[] xRe, double[] xIm, REAL PART and imaginary part How to convert the sound file into double[]? I have never seen something like that. Could not find in the internet that kind of operation. This is this sound sample: http://www.speedyshare.com/fFD8t/e.wav Please help, cause I used Pascal and now don't know what to do here. 回答1: It's a simple stream operation. You have to read wav file header. You have to

问题 I have a load of 3 hour MP3 files, and every ~15 minutes a distinct 1 second sound effect is played, which signals the beginning of a new chapter. Is it possible to identify each time this sound effect is played, so I can note the time offsets? The sound effect is similar every time, but because it's been encoded in a lossy file format, there will be a small amount of variation. The time offsets will be stored in the ID3 Chapter Frame MetaData. Example Source, where the sound effect plays

问题 I have been trying to make a music visualizer app using Vue and P5, and after tinkering with P5 using this article as my guide (https://medium.com/js-dojo/experiment-with-p5-js-on-vue-7ebc05030d33), I managed to get a Canvas rendered with some cool looking graphics. Now, I am trying to create a link between the waveform/amplitude of a given song and the visuals rendered in the canvas. I have been trying to get the constructors/functions from the P5.sound library to load a song from a file