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Roberto Leinardi
Asked: 2020-10-04 13:11:39 +0800 CST

How to disable a specific profile in pulseaudio

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My USB microphone is recognized also as a speaker (both analog and digital). Is there a way to blacklist/disable this output "feature", leaving the input feature active?

This is the relevant entry of the mic in pacmd list-cards:

        name: <alsa_card.usb-Samson_Technologies_Samson_Meteor_Mic-00>
        driver: <module-alsa-card.c>
        owner module: 22
        properties:
                alsa.card = "2"
                alsa.card_name = "Samson Meteor Mic"
                alsa.long_card_name = "Samson Technologies Samson Meteor Mic at usb-0000:02:00.0-4.4.1, full speed"
                alsa.driver_name = "snd_usb_audio"
                device.bus_path = "pci-0000:02:00.0-usb-0:4.4.1:1.0"
                sysfs.path = "/devices/pci0000:00/0000:00:01.3/0000:02:00.0/usb1/1-4/1-4.4/1-4.4.1/1-4.4.1:1.0/sound/card2"
                udev.id = "usb-Samson_Technologies_Samson_Meteor_Mic-00"
                device.bus = "usb"
                device.vendor.id = "17a0"
                device.vendor.name = "Samson Technologies Corp."
                device.product.id = "0310"
                device.product.name = "Meteor condenser microphone"
                device.serial = "Samson_Technologies_Samson_Meteor_Mic"
                device.form_factor = "microphone"
                device.string = "2"
                device.description = "Meteor condenser microphone"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-input-microphone-usb"
        profiles:
                input:analog-stereo: Ingresso «Stereo analogico» (priority 65, available: unknown)
                input:iec958-stereo: Ingresso «Stereo digitale (IEC958)» (priority 55, available: unknown)
                output:analog-stereo: Uscita «Stereo analogico» (priority 6500, available: unknown)
                output:analog-stereo+input:analog-stereo: Duplex stereo analogico (priority 6565, available: unknown)
                output:analog-stereo+input:iec958-stereo: Uscita «Stereo analogico» + Ingresso «Stereo digitale (IEC958)» (priority 6555, available: unknown)
                output:iec958-stereo: Uscita «Stereo digitale (IEC958)» (priority 5500, available: unknown)
                output:iec958-stereo+input:analog-stereo: Uscita «Stereo digitale (IEC958)» + Ingresso «Stereo analogico» (priority 5565, available: unknown)
                output:iec958-stereo+input:iec958-stereo: Duplex stereo digitale (IEC958) (priority 5555, available: unknown)
                off: Spento (priority 0, available: unknown)
        active profile: <output:iec958-stereo+input:analog-stereo>
        sinks:
                alsa_output.usb-Samson_Technologies_Samson_Meteor_Mic-00.iec958-stereo/#1: Meteor condenser microphone Stereo digitale (IEC958)
        sources:
                alsa_output.usb-Samson_Technologies_Samson_Meteor_Mic-00.iec958-stereo.monitor/#1: Monitor of Meteor condenser microphone Stereo digitale (IEC958)
                alsa_input.usb-Samson_Technologies_Samson_Meteor_Mic-00.analog-stereo/#2: Meteor condenser microphone Stereo analogico
        ports:
                analog-input-mic: Microfono (priority 8700, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-input-microphone"
                iec958-stereo-input: Ingresso digitale (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
                        properties:
                                
                analog-output-speaker: Altoparlanti (priority 10000, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-speakers"
                iec958-stereo-output: Uscita digitale (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
                        properties:

In short, I would like to keep all the input profiles:

input:analog-stereo: Ingresso «Stereo analogico» (priority 65, available: unknown)
input:iec958-stereo: Ingresso «Stereo digitale (IEC958)» (priority 55, available: unknown)

and remove the output profiles:

output:analog-stereo: Uscita «Stereo analogico» (priority 6500, available: unknown)
output:analog-stereo+input:analog-stereo: Duplex stereo analogico (priority 6565, available: unknown)
output:analog-stereo+input:iec958-stereo: Uscita «Stereo analogico» + Ingresso «Stereo digitale (IEC958)» (priority 6555, available: unknown)
output:iec958-stereo: Uscita «Stereo digitale (IEC958)» (priority 5500, available: unknown)
output:iec958-stereo+input:analog-stereo: Uscita «Stereo digitale (IEC958)» + Ingresso «Stereo analogico» (priority 5565, available: unknown)
output:iec958-stereo+input:iec958-stereo: Duplex stereo digitale (IEC958) (priority 5555, available: unknown)
pulseaudio microphone

0 Answers