I am trying to play audio through the play function of pydub play(audio_segment) but the function was getting constantly stuck on this function without actually playing the audio.
It seems like pydub is getting stuck on the def _play_with_pyaudio(seg): in the stream.open function of pyaudio on the line stream = Stream(self, *args, **kwargs).
If I pause between the creation of pyaudio and the opening of the audio stream, it plays through the audio stream just fine.
p = pyaudio.PyAudio()
stream = p.open(format=p.get_format_from_width(seg.sample_width),
channels=seg.channels,
rate=seg.frame_rate,
output=True)
I am not getting an error, neither in code or in ALSA debug messages. How do I resolve this, I made sure to reinstall pyaudio, is it a problem in the library or in pyaudio? It seems to me that the problem is somewhere in pyaudio.
I am currently on pyaudio-0.2.11 and pydub 0.23.1. I am working in my personal Lubuntu virtual environment.
Related
I'm interested in creating a python 3.9 program that streams audio from a YouTube livestream but unfortunately I can't get the video.getbestaudio() function to work and the function only returns the value null. Thus causing the null error on the next line.
Just in case you need to know I'm using the Pafy library to get the audio stream and the python-vlc library to play the audio. The script is also fully functional if I use a YouTube video that is not a livestream or use the video.getbest() function but this also creates a window displaying the video stream which is not what I want.
I was wondering how I could work around the error and create a functioning python script. I am open to use other methods if they properly work. Thanks for any help in advance!
Here is the error:
Traceback (most recent call last):
File "C:\Users\mjten\Desktop\Programing\Python\lofi.py", line 8, in <module>
playurl = best.url
AttributeError: 'NoneType' object has no attribute 'url'
Here is my code:
import pafy
import vlc
url = 'https://www.youtube.com/watch?v=5qap5aO4i9A'
video = pafy.new(url)
best = video.getbestaudio()
playurl = best.url
player = vlc.MediaPlayer(playurl)
player.play()
while True: pass
P.S Sorry for the bad code I'm just trying to figure out a working example in the meantime.
pip install pafy
pip install youtube_dl
import pafy
def stream(url):
video = pafy.new(url, ydl_opts={'nocheckcertificate': True})
print(video)
best = video.getbestaudio()
stream_urls = best.url
print(stream_urls)
stream('https://www.youtube.com/watch?v=5qap5aO4i9A')
import vlc
p = vlc.MediaPlayer("https://www.youtube.com/watch?v=7ailmFB38Rk")
p.play()
gives me this error
[00007f97a80030c0] http stream error: local stream 1 error: Cancellation (0x8)
I was told this is causes if the link is invalid or broken, both of these are not the cases because using regular vlc to play the video works perfectly
Also, if it is somehow not possible to play the video, I only need to play the audio so that will also be of help.
use pafy
# importing vlc module
import vlc
# importing pafy module
import pafy
# url of the video
url = "https://www.youtube.com/watch?v = vG2PNdI8axo"
# creating pafy object of the video
video = pafy.new(url)
# getting best stream
best = video.getbest()
# creating vlc media player object
media = vlc.MediaPlayer(best.url)
# start playing video
media.play()
I am working on a project that requires sound snippets to be played from MP3 files in a playlist. The files are full songs.
I have tried pygame mixer and I can pass the start time of the file, but I cannot pass the end time that I want the music to stop, or be able to fade-in and fade out the current snippet.
I have looked at the vlc and ffmpeg libraries, but I do not see the functionality I am looking for.
I'm hoping someone may be aware of a library out there that may be able to do what I am trying to accomplish.
I finally figured out how to do exactly what I wanted to do!
In the spirit of helping others I am posting an answer to my own question.
My development environment:
Mac OS Mojave 10.14.6
Python 3.7.4
PyAudio 0.2.11
PyDub 0.23.1
Here it is in it's most rudimentary form:
import pyaudio
from pydub import AudioSegment
# Assign a mp3 source file to the PyDub Audiosegment
mp3 = AudioSegment.from_mp3("path_to_your_mp3_file")
# Specify starting and ending offsets from the beginning of the stream
# then apply a fadein and fadeout. All values are in millisecond (seconds * 1000).
mp3 = mp3[int(43000):int(58000)].fade_in(2000).fade_out(2000)
# In the above example the music will start 43 seconds into the track with a 2 second
# fade-in, and only play for 15 seconds with a 2 second fade-out. If you don't need
# these features, just comment out the line and the full mp3 will play.
# Assign the PyAudio player
player = pyaudio.PyAudio()
# Create the stream from the chosen mp3 file
stream = player.open(format = player.get_format_from_width(mp3.sample_width),
channels = mp3.channels,
rate = mp3.frame_rate,
output = True)
data = mp3.raw_data
while data:
stream.write(data)
data=0
stream.close()
player.terminate()
It isn't in the example above, but there is a way to process the stream and increase/decrease/mute the volume of the music.
One other thing that could be done is to set up a thread to pause the processing (writing) of the stream, which would emulate a pause button in a player.
I want to convert any audio file (flac, wav,...) to mp3 with python
I am a noob , I tried pydub but I didn't found out how to make ffmpeg work with it, and If I'm right it can't convert flac file.
The idea of my project is to :
Make musicBee send the path of the 'now playing' track (by pressing the assigned shortcut) to my python file which would convert the music if it is not in mp3 and send it to a folder. (Everything in background so I don't have to leave what I'm doing to make the operation)
You can use the following the code:
from pydub import AudioSegment
wav_audio = AudioSegment.from_file("audio.wav", format="wav")
raw_audio = AudioSegment.from_file("audio.wav", format="raw",
frame_rate=44100, channels=2, sample_width=2)
wav_audio.export("audio1.mp3", format="mp3")
raw_audio.export("audio2.mp3", format="mp3")
You can also look here for more options.
flac_audio = AudioSegment.from_file("sample.flac", "flac")
flac_audio.export("sampleMp3.mp3", format="mp3")
I want to play a .wav file in Python 3.4. Additonally, I want python to play the file rather than python open the file to play in VLC, media player etc..
As a follow up question, is there any way for me to combine the .wav file and the .py file into a standalone exe.
Ignore the second part of the question if it is stupid, I don't really know anything about compiling python.
Also, I know there have been other questions about .wav files, but I have not found one that works in python 3.4 in the way I described.
Using pyaudio you may get incorrect playback due to speed, consider instead:
sudo apt-get install python-pygame
Windows:
choco install python-pygame?
def playSound(filename):
pygame.mixer.music.load(filename)
pygame.mixer.music.play()
import pygame
pygame.init()
playSound('hellyeah.wav')
I fixed the problem by using the module pyaudio, and the module wave to read the file.
I will type example code to play a simple wave file.
import wave, sys, pyaudio
wf = wave.open('Sound1.wav')
p = pyaudio.PyAudio()
chunk = 1024
stream = p.open(format =
p.get_format_from_width(wf.getsampwidth()),
channels = wf.getnchannels(),
rate = wf.getframerate(),
output = True)
data = wf.readframes(chunk)
while data != '':
stream.write(data)
data = wf.readframes(chunk)
If you happen to be using linux a simple solution is to call aplay.
import os
wav_file = "./Hello.wav"
os.system(f'aplay {wav_file}')