subprocess.call(["espeak", "-s 5 -ven", "where are you", "--stdout", 'shell=True', "aplay"])
这个输出只是特殊字符的大量输出,而不是espeak的音频输出。当我输入时:
subprocess.call(["espeak", "-s 5 -ven", "where are you", 'shell=True', "aplay"])
然后听到音频,但有时候语音有些问题,以及下面的消息输出:
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
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
有人能解释一下--stdout在这里意味着什么吗?为什么它会引起上述错误?
答案 0 :(得分:1)
- stdout
在生成时将语音输出写入stdout,而不是说出来。 数据以WAV文件头开头 表示采样率和数据格式。长度字段是 设置为零,因为标题时数据的长度是未知的 生产。
对于jack server is not running or cannot be started
错误检查this link以获取解决方案:
您是否安装了alsa软件包(输入'alsa'和tab键 两次,你应该看到一些以alsa开头的命令..)?如果它 未安装,请使用
执行此操作sudo apt-get install alsa-tools alsa-utils
无论如何,此错误不应阻止espeak
工作。您可以按照以下方式将stderr
重定向到/dev/null
来删除它:
FNULL = open(os.devnull, 'w')
retcode = subprocess.call(["espeak", "-s 5", "-ven", "where are you", "aplay"], stdout=FNULL, stderr=subprocess.STDOUT)
另请注意,您使用shell=True
作为espeak
的参数之一,它实际上应该是call
方法本身的参数。
只需删除它。