I am using jackd and pulseaudio with the pulseaudio-jack-module so that I can have pulseaudio and jack running at the same time. I mostly use jack applications, except for web browsing and a few other applications.I am trying to record audio but I get really bad feedback if I try to record audio. If I plug in my headphones the feedback mostly goes away but if I touch the laptop I can hear it in my recording.It sounds like linux is still recording through my built in mic. I am wondering if I can fix this or will I need to buy a usb mic or something like that? I am using kxstudio's audioHere's some debugging outputaplay -Lnull    Discard all samples (playback) or generate zero samples (capture)pulse    PulseAudio Sound Serverdefault    Playback/recording through the PulseAudio sound serversysdefault:CARD=Loopback    Loopback, Loopback PCM    Default Audio Devicefront:CARD=Loopback,DEV=0    Loopback, Loopback PCM    Front speakerssurround21:CARD=Loopback,DEV=0    Loopback, Loopback PCM    2.1 Surround output to Front and Subwoofer speakerssurround40:CARD=Loopback,DEV=0    Loopback, Loopback PCM    4.0 Surround output to Front and Rear speakerssurround41:CARD=Loopback,DEV=0    Loopback, Loopback PCM    4.1 Surround output to Front, Rear and Subwoofer speakerssurround50:CARD=Loopback,DEV=0    Loopback, Loopback PCM    5.0 Surround output to Front, Center and Rear speakerssurround51:CARD=Loopback,DEV=0    Loopback, Loopback PCM    5.1 Surround output to Front, Center, Rear and Subwoofer speakerssurround71:CARD=Loopback,DEV=0    Loopback, Loopback PCM    7.1 Surround output to Front, Center, Side, Rear and Woofer speakersdmix:CARD=Loopback,DEV=0    Loopback, Loopback PCM    Direct sample mixing devicedmix:CARD=Loopback,DEV=1    Loopback, Loopback PCM    Direct sample mixing devicedsnoop:CARD=Loopback,DEV=0    Loopback, Loopback PCM    Direct sample snooping devicedsnoop:CARD=Loopback,DEV=1    Loopback, Loopback PCM    Direct sample snooping devicehw:CARD=Loopback,DEV=0    Loopback, Loopback PCM    Direct hardware device without any conversionshw:CARD=Loopback,DEV=1    Loopback, Loopback PCM    Direct hardware device without any conversionsplughw:CARD=Loopback,DEV=0    Loopback, Loopback PCM    Hardware device with all software conversionsplughw:CARD=Loopback,DEV=1    Loopback, Loopback PCM    Hardware device with all software conversionssysdefault:CARD=PCH    HDA Intel PCH, CS4208 Analog    Default Audio Devicefront:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    Front speakerssurround21:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    2.1 Surround output to Front and Subwoofer speakerssurround40:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    4.0 Surround output to Front and Rear speakerssurround41:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    4.1 Surround output to Front, Rear and Subwoofer speakerssurround50:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    5.0 Surround output to Front, Center and Rear speakerssurround51:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    5.1 Surround output to Front, Center, Rear and Subwoofer speakerssurround71:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    7.1 Surround output to Front, Center, Side, Rear and Woofer speakersiec958:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Digital    IEC958 (S/PDIF) Digital Audio Outputdmix:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    Direct sample mixing devicedmix:CARD=PCH,DEV=1    HDA Intel PCH, CS4208 Digital    Direct sample mixing devicedsnoop:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    Direct sample snooping devicedsnoop:CARD=PCH,DEV=1    HDA Intel PCH, CS4208 Digital    Direct sample snooping devicehw:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    Direct hardware device without any conversionshw:CARD=PCH,DEV=1    HDA Intel PCH, CS4208 Digital    Direct hardware device without any conversionsplughw:CARD=PCH,DEV=0    HDA Intel PCH, CS4208 Analog    Hardware device with all software conversionsplughw:CARD=PCH,DEV=1    HDA Intel PCH, CS4208 Digital    Hardware device with all software conversionshdmi:CARD=NVidia,DEV=0    HDA NVidia, HDMI 0    HDMI Audio Outputhdmi:CARD=NVidia,DEV=1    HDA NVidia, HDMI 1    HDMI Audio Outputhdmi:CARD=NVidia,DEV=2    HDA NVidia, HDMI 2    HDMI Audio Outputdmix:CARD=NVidia,DEV=3    HDA NVidia, HDMI 0    Direct sample mixing devicedmix:CARD=NVidia,DEV=7    HDA NVidia, HDMI 1    Direct sample mixing devicedmix:CARD=NVidia,DEV=8    HDA NVidia, HDMI 2    Direct sample mixing devicedsnoop:CARD=NVidia,DEV=3    HDA NVidia, HDMI 0    Direct sample snooping devicedsnoop:CARD=NVidia,DEV=7    HDA NVidia, HDMI 1    Direct sample snooping devicedsnoop:CARD=NVidia,DEV=8    HDA NVidia, HDMI 2    Direct sample snooping devicehw:CARD=NVidia,DEV=3    HDA NVidia, HDMI 0    Direct hardware device without any conversionshw:CARD=NVidia,DEV=7    HDA NVidia, HDMI 1    Direct hardware device without any conversionshw:CARD=NVidia,DEV=8    HDA NVidia, HDMI 2    Direct hardware device without any conversionsplughw:CARD=NVidia,DEV=3    HDA NVidia, HDMI 0    Hardware device with all software conversionsplughw:CARD=NVidia,DEV=7    HDA NVidia, HDMI 1    Hardware device with all software conversionsplughw:CARD=NVidia,DEV=8    HDA NVidia, HDMI 2    Hardware device with all software conversionsaplay -l**** List of PLAYBACK Hardware Devices ****card 0: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]  Subdevices: 8/8  Subdevice #0: subdevice #0  Subdevice #1: subdevice #1  Subdevice #2: subdevice #2  Subdevice #3: subdevice #3  Subdevice #4: subdevice #4  Subdevice #5: subdevice #5  Subdevice #6: subdevice #6  Subdevice #7: subdevice #7card 0: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]  Subdevices: 8/8  Subdevice #0: subdevice #0  Subdevice #1: subdevice #1  Subdevice #2: subdevice #2  Subdevice #3: subdevice #3  Subdevice #4: subdevice #4  Subdevice #5: subdevice #5  Subdevice #6: subdevice #6  Subdevice #7: subdevice #7card 1: PCH [HDA Intel PCH], device 0: CS4208 Analog [CS4208 Analog]  Subdevices: 0/1  Subdevice #0: subdevice #0card 1: PCH [HDA Intel PCH], device 1: CS4208 Digital [CS4208 Digital]  Subdevices: 1/1  Subdevice #0: subdevice #0card 2: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]  Subdevices: 1/1  Subdevice #0: subdevice #0card 2: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]  Subdevices: 1/1  Subdevice #0: subdevice #0card 2: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]  Subdevices: 1/1  Subdevice #0: subdevice #0I would just like to be able to record some short clips, not for music or anything, more like a voice over.I have qas mixer and it In the above screenshot I have headphones plugged in so that I don't blow out my ears.I made this sample clip, it's very short but you can literally hear my keystrokes and me moving my hands or try to type. You can listen to the 10 second clip hereSo does this mean that I need a usb mic or is there something wrong with my audio setup? How could I fix this?
linux audio feedback
audio;jack
It does look like you're boosting your mic gain; that does make noise more pronounced.Also, you probably have too many mics active. You should methodically go through each capture option and mute it, and then unmute one-by-one until you identify the one you actually are using. 