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