pycaw | Python Core Audio Windows Library | Reactive Programming library
kandi X-RAY | pycaw Summary
kandi X-RAY | pycaw Summary
Python Core Audio Windows Library, working for both Python2 and Python3.
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Top functions reviewed by kandi - BETA
- Called when SimpleVolume changes
- Send a callback to the master
- Add a callback to the speaker
- Called when the audio state changes
- Remove a session
- Return a string representation of the MagicManager
- Called when a new session is created
- Add a magic root session
- Search magic_root_app to match magic_app
- Activate this session
- Add a new magic_app to the watchlist
- Activate the MagicManager
- Called when a notification is received
- Returns a list of all available devices
- Creates a new AudioDevice
- Gets the value of the vt
- Create a new MagicSession
- Increase the volume
- Decrement the audio volume by decibels
- Set the speaker s volume
- Unutes the playback
- Mutes the audio volume
- Get a process session by id
- Returns a list of audio sessions
- Clean up resources
- Called when a new audio session is created
pycaw Key Features
pycaw Examples and Code Snippets
Community Discussions
Trending Discussions on pycaw
QUESTION
I am a beginner and have a problem after installing pycaw for the audio control using python, on putting the basic initialization code for pycaw, i get the following error:-
...ANSWER
Answered 2022-Jan-27 at 14:14After a time searching I found that comtypes uses a tool to be compatible with both python 2 and 3 and that is no longer works in new versions. I had to downgrade two packages and reinstall comtypes:
QUESTION
ANSWER
Answered 2021-Dec-11 at 11:39With pywin32 you can send key board input for VK_VOLUME_UP/VK_VOLUME_DOWN, the key message will bring up that annoying window, example
QUESTION
I'm want to create an app that can manage the volume of the pc, I found online "pycaw" and I tried to install it but when I run the command this is the result
...ANSWER
Answered 2021-Nov-02 at 09:18The error you're getting is telling you how to solve it:
QUESTION
(changed title thanks to @bb1950328)
...ANSWER
Answered 2021-Aug-05 at 11:40The and is a guard for the situation when session.Process is None; in that case, it shouldn't try to do .name() on it, because that would fail
It only tries to retrieve the name of the processes that are not None
QUESTION
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 select the soundcard as my output device, and to specify which channel(s) must play sound right now. A good usage would be to have a .wav file in mono to implement in 1,2,3 or 4 speakers ; or a .wav file in stereo to implement in the same way, but with the first channel of the stereo in 2 speakers and the second channel of the stereo in the 2 other speakers. The perfect usage would be to create a surround 4.0 effect, making a square of speakers and being able to "turn around" with the sound: you can imagine that I put a sound of a train, and that this sound is turning around as if the train was turning around you.
sounddevice.AsioSettings() seems to allow us to control which output to use to play something, right? (https://python-sounddevice.readthedocs.io/en/0.3.15/api/platform-specific-settings.html) But when I see the doc in details, I also note that sounddevice.play() allows us to specify the mapping argument, which I don't really understand. (https://python-sounddevice.readthedocs.io/en/0.3.15/api/convenience-functions.html#sounddevice.play) I suppose that I will have to install Asio in all cases, which is not a problem (I hope!).
As my purpose is to control each speaker, what could I specify and how could I achieve that using the souddevice library or another one? Also, Is it possible to control the volume of each speakers, using those libraires or other ones (ex: pycaw)?
Thank you very much!
Elyurn
PS: If no solution exists with python, it would be a pleasure if you have ideas to achieve this goal another way (like a software able to do that for example).
...ANSWER
Answered 2020-Jul-05 at 17:25Both the AsioSettings and the mapping argument are for statically selecting channels. You cannot use either to mix signals or change their volume.
If you want to use the first few channels of your sound card in ascending order (e.g. channels 1, 2, 3 and 4), you don't need them at all. For example, you can simply use channels=4, which will select the first 4 channels. Even simpler, if you use sounddevice.play(), the number of channels will be determined by the given NumPy array, and you don't have to explicitly specify the channels parameter.
If you know the desired movement (of the train in your example) in advance, you can pre-compute the 2- or 4-channel signal. Then you can simply play the multi-channel signal with sounddevice.play() (using AsioSettings or the mapping argument if needed).
If you don't know the movement in advance (e.g. if it's computed in real-time), you can use a sounddevice.OutputStream and implement a custom callback function which does the weighting of signals.
As for how exactly to mix the signal into the output channels, this doesn't really have anything to do with the sounddevice or soundcard modules. You can probably find signal processing libraries to do that, or you can implement it on your own. The appropriate search term for this is "panning". For two channels you can use "stereo panning", for more channels there are other methods, like "vector base amplitude panning (VBAP)", "Ambisonics amplitude panning", ...
QUESTION
So for a while now I have been building my virtual assistant in python which has required the use of several external libraries. I have also been converting the scripts to an exe using pyinstaller. However only the other day, windows defender told me that there was something wrong which was only affecting the exe file I had created
It said Trojan: Win32/Wacatac.C!ml
I simply don't understand how this was only flagged up now and not before considering I have been working on this project for over a month now.
Here is a list of the modules I have used:
newsapi, Wikipedia, threading, autocorrect, random, time,email, calendar, datetime, math, sys, webbrowser, pyttsx3, io, speech_recognition,imaplib, pickle, wmi, docx, comtypes, googletrans, qhue, pyowm, ast, pyaudio, pycaw, tkinter, smtplib, email, bs4, requests
...ANSWER
Answered 2020-Jan-24 at 17:45It's a false positive. There's nothing malicious about your third-party modules, the issue has to do with PyInstaller.
PyInstaller comes with pre-compiled bootloader binaries. Since many actual amateur viruses are written in Python, and then converted to executables using PyInstaller, most anti-virus software will flag those pre-compiled bootloader binaries as being malicious. The only real solution is to compile your own bootloader.
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Install pycaw
You can use pycaw like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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