Джек-сервер не работает или не может быть запущен
Я получаю следующую ошибку при попытке использовать pyaudio в Python.
Python 2.7.10 (default, Oct 14 2015, 16:09:02)
[GCC 5.2.1 20151010] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyaudio
>>> p = pyaudio.PyAudio()
ALSA lib pcm.c:2267:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2267:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2267:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:867:(find_matching_chmap) Found no matching channel map
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
Кажется, что проблема связана с версией pyaudio, поэтому пытается обновить. Когда я пытаюсь обновить pyaudio:
abhishek@vaio:/etc/apt/sources.list.d$ sudo pip install pyaudio --upgrade
The directory '/home/abhishek/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/abhishek/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting pyaudio
Downloading PyAudio-0.2.9.tar.gz (289kB)
100% |████████████████████████████████| 296kB 539kB/s
Installing collected packages: pyaudio
Found existing installation: PyAudio 0.2.8
DEPRECATION: Uninstalling a distutils installed project (pyaudio) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
Uninstalling PyAudio-0.2.8:
Successfully uninstalled PyAudio-0.2.8
Running setup.py install for pyaudio ... error
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-15VuRi/pyaudio/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-QGLaRp-record/install-record.txt --single-version-externally-managed --compile:
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
copying src/pyaudio.py -> build/lib.linux-x86_64-2.7
running build_ext
building '_portaudio' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/src
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c src/_portaudiomodule.c -o build/temp.linux-x86_64-2.7/src/_portaudiomodule.o
src/_portaudiomodule.c:28:20: fatal error: Python.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Rolling back uninstall of PyAudio
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-15VuRi/pyaudio/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-QGLaRp-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-15VuRi/pyaudio/
1 ответ
Ни одно из этих сообщений не является действительными ошибками. PortAudio просто "пингует" все возможные хост-API и устройства и проверяет, доступны они или нет. Обычно это приводит к нескольким сообщениям на терминале, которые в большинстве случаев можно игнорировать.
Если вам нужна оболочка Python PortAudio, которая не печатает эти сообщения (потому что она их подавляет), проверьте модуль sounddevice.