当我尝试在 Debian 上的 davinci resolve 18 上收听音频时出现了这些错误。
ALSA lib pcm_dmix.c:972:(snd_pcm_dmix_open)
The dmix plugin supports only playback stream
这是我的 asoundrc 文件的内容
pcm.!default {
type plug
slave.pcm "mixer"
}
pcm.mixer {
type dmix
ipc_key 1024
slave {
pcm "hw:1,0"
period_size 1024
buffer_size 4096
rate 44800
format S32_LE
}
}
ctl.!default {
type hw
card 1
}
有人能帮我编辑这个 asoundrc 文件，以便麦克风和音频可以正常工作吗？我的麦克风音频可以正常工作。
这是我的表演 -l
null
Discard all samples (playback) or generate zero samples (capture)
lavrate
Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
Rate Converter Plugin Using Samplerate Library
speexrate
Rate Converter Plugin Using Speex Resampler
jack
JACK Audio Connection Kit
oss
Open Sound System
pulse
PulseAudio Sound Server
speex
Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
Plugin for channel upmix (4,6,8)
vdownmix
Plugin for channel downmix (stereo) with a simple spacialization
default
mixer
hw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct hardware device without any conversions
hw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct hardware device without any conversions
plughw:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Hardware device with all software conversions
plughw:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Hardware device with all software conversions
hdmi:CARD=NVidia,DEV=0
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
HDA NVidia, HDMI 1
HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
HDA NVidia, HDMI 2
HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
HDA NVidia, HDMI 3
HDMI Audio Output
dmix:CARD=NVidia,DEV=3
HDA NVidia, HDMI 0
Direct sample mixing device
dmix:CARD=NVidia,DEV=7
HDA NVidia, HDMI 1
Direct sample mixing device
dmix:CARD=NVidia,DEV=8
HDA NVidia, HDMI 2
Direct sample mixing device
dmix:CARD=NVidia,DEV=9
HDA NVidia, HDMI 3
Direct sample mixing device
usbstream:CARD=NVidia
HDA NVidia
USB Stream Output
hw:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
Direct hardware device without any conversions
plughw:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
Hardware device with all software conversions
sysdefault:CARD=Generic
HD-Audio Generic, ALC293 Analog
Default Audio Device
front:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
Front output / input
surround21:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
dmix:CARD=Generic,DEV=0
HD-Audio Generic, ALC293 Analog
Direct sample mixing device
usbstream:CARD=Generic
HD-Audio Generic
USB Stream Output
答案1
我能够解决它
pcm.dmixed {
type dmix
ipc_key 1024
slave {
pcm "hw:1,0"
rate 48000
channels 2
format S16_LE
period_size 1024
buffer_size 4096
}
}
pcm.dsnooped {
type dsnoop
ipc_key 2048
slave {
pcm "hw:1,0"
rate 48000
channels 2
format S16_LE
period_size 1024
buffer_size 4096
}
}
pcm.!default {
type asym
playback.pcm {
type plug
slave.pcm "dmixed"
}
capture.pcm {
type plug
slave.pcm "dsnooped"
}
}
ctl.!default {
type hw
card 1
}
我需要创建一个捕获设备，我使用 dsnoop 来创建这个设备，然后我就可以让 davinci 开始播放和录制音频。