Why does Audacity show me internal mics: "Internal Mic: 0" and "Internal Mic: 1"?
I have AlsaMixer v1.0.24.2 and if I press F6 to select sound card after running alsamixer, I get two options:
- (default)
0 HDA Intel
If I select "- (default)", the card name and chip name are displayed as "PulseAudio" in the top left corner. If I select "HDA Intel" the card name is displayed as "HDA Intel" and chip name is displayed as "Realtek ACL268".
When I launch Audacity 1.3.14-beta (Unicode), I see the following options for each pulldown menu.
Audio Host:
ALSA
OSS
Output Device (when ALSA is selected as audio host):
pulse
default
Input Device (when ALSA is selected as audio host):
HDA Intel: ALC268 Analog (hw:0,0)
HDA Intel: ALC268 Analog (hw:0,2): Mic:0
HDA Intel: ALC268 Analog (hw:0,2): Internal Mic:0
HDA Intel: ALC268 Analog (hw:0,2): Line:0
HDA Intel: ALC268 Analog (hw:0,2): Mic:1
HDA Intel: ALC268 Analog (hw:0,2): Internal Mic:1
HDA Intel: ALC268 Analog (hw:0,2): Line:1
pulse: Mic:0
pulse: Internal Mic:0
pulse: Line:0
pulse: Mic:1
pulse: Internal Mic:1
pulse: Line:1
default: Mic:0
default: Internal Mic:0
default: Line:0
default: Mic:1
default: Internal Mic:1
default: Line:1
I can set the input device to any one of the following and record my voice successfully:
pulse: Internal Mic:0
pulse: Internal Mic:1
default: Internal Mic:1
default: Internal Mic:1
But if I set the input device to anything else, I can't record my voice. I want to know why I have got two internal mics? As far as I know, my laptop has got only one internal mic. Why do I see two in Audacity?
Here is some more output. I hope it will help you to answer my questions. If you need more output, please tell me.
lone@learner:~$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 2: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
lone@learner:~$ arecord -L
default
Playback/recording through the PulseAudio sound server
pulse
Playback/recording through the PulseAudio sound server
front:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
lone@learner:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
lone@learner:~$ aplay -L
default
Playback/recording through the PulseAudio sound server
pulse
Playback/recording through the PulseAudio sound server
front:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, ALC268 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
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