Bluetooth and sound chain

How do I get sound going via Bluetooth to pass through the Equalizer. I need equalization to cope with a hearing defect. Normal Headphones are fine, but not Bluetooth, all I get is a ‘muddy’ indistinct noise.

Please post more information about audio sinks (outputs):

pactl list sinks; pacmd dump | grep -Ev 'module|source'

Hope I do this right! oops , redonw, forgot to enable Earphones.

Sink #0
        State: SUSPENDED
        Name: alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1
        Description: GP107GL High Definition Audio Controller Digital Stereo (HDMI 2)
        Driver: module-alsa-card.c
        Sample Specification: s16le 2ch 44100Hz
        Channel Map: front-left,front-right
        Owner Module: 6
        Mute: no
        Volume: front-left: 3277 /   5% / -78.06 dB,   front-right: 3277 /   5% / -78.06 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE DECIBEL_VOLUME LATENCY SET_FORMATS 
        Properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "S32D850"
                alsa.id = "HDMI 1"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "7"
                alsa.card = "1"
                alsa.card_name = "HDA NVidia"
                alsa.long_card_name = "HDA NVidia at 0xfe080000 irq 33"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:01:00.1"
                sysfs.path = "/devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1"
                device.bus = "pci"
                device.vendor.id = "10de"
                device.vendor.name = "NVIDIA Corporation"
                device.product.id = "0fb9"
                device.product.name = "GP107GL High Definition Audio Controller"
                device.string = "hdmi:1,1"
                device.buffering.buffer_size = "352768"
                device.buffering.fragment_size = "176384"
                device.access_mode = "mmap+timer"
                device.profile.name = "hdmi-stereo-extra1"
                device.profile.description = "Digital Stereo (HDMI 2)"
                device.description = "GP107GL High Definition Audio Controller Digital Stereo (HDMI 2)"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        Ports:
                hdmi-output-1: HDMI / DisplayPort 2 (type: HDMI, priority: 5800, available)
        Active Port: hdmi-output-1
        Formats:
                pcm

Sink #1
        State: SUSPENDED
        Name: alsa_output.pci-0000_00_14.2.analog-stereo
        Description: Built-in Audio Analog Stereo
        Driver: module-alsa-card.c
        Sample Specification: s16le 2ch 44100Hz
        Channel Map: front-left,front-right
        Owner Module: 7
        Mute: no
        Volume: front-left: 33423 /  51% / -17.55 dB,   front-right: 33423 /  51% / -17.55 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: alsa_output.pci-0000_00_14.2.analog-stereo.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "ALC887-VD Analog"
                alsa.id = "ALC887-VD Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "0"
                alsa.card_name = "HDA ATI SB"
                alsa.long_card_name = "HDA ATI SB at 0xfe300000 irq 16"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:14.2"
                sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card0"
                device.bus = "pci"
                device.vendor.id = "1002"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
                device.product.id = "4383"
                device.product.name = "SBx00 Azalia (Intel HDA)"
                device.form_factor = "internal"
                device.string = "front:0"
                device.buffering.buffer_size = "352768"
                device.buffering.fragment_size = "176384"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "Analog Stereo"
                device.description = "Built-in Audio Analog Stereo"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        Ports:
                analog-output-lineout: Line Out (type: Line, priority: 9000, available)
                analog-output-headphones: Headphones (type: Headphones, priority: 9900, not available)
        Active Port: analog-output-lineout
        Formats:
                pcm

Sink #2
        State: SUSPENDED
        Name: ladspa_output.mbeq_1197.mbeq
        Description: LADSPA Plugin Multiband EQ on Built-in Audio Analog Stereo
        Driver: module-ladspa-sink.c
        Sample Specification: float32le 2ch 44100Hz
        Channel Map: front-left,front-right
        Owner Module: 24
        Mute: no
        Volume: front-left: 33423 /  51%,   front-right: 33423 /  51%
                balance 0.00
        Base Volume: 65536 / 100%
        Monitor Source: ladspa_output.mbeq_1197.mbeq.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HW_MUTE_CTRL LATENCY 
        Properties:
                device.master_device = "alsa_output.pci-0000_00_14.2.analog-stereo"
                device.class = "filter"
                device.ladspa.module = "mbeq_1197"
                device.ladspa.label = "mbeq"
                device.ladspa.name = "Multiband EQ"
                device.ladspa.maker = "Steve Harris <steve@plugin.org.uk>"
                device.ladspa.copyright = "GPL"
                device.ladspa.unique_id = "1197"
                device.description = "LADSPA Plugin Multiband EQ on Built-in Audio Analog Stereo"
                device.icon_name = "audio-card"
        Formats:
                pcm

Sink #3
        State: SUSPENDED
        Name: bluez_sink.20_09_14_10_E8_BE.a2dp_sink
        Description: Boltune BT-BH021
        Driver: module-bluez5-device.c
        Sample Specification: s16le 2ch 44100Hz
        Channel Map: front-left,front-right
        Owner Module: 26
        Mute: no
        Volume: front-left: 33026 /  50% / -17.86 dB,   front-right: 33026 /  50% / -17.86 dB
                balance 0.00
        Base Volume: 65536 / 100% / 0.00 dB
        Monitor Source: bluez_sink.20_09_14_10_E8_BE.a2dp_sink.monitor
        Latency: 0 usec, configured 0 usec
        Flags: HARDWARE HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
        Properties:
                bluetooth.protocol = "a2dp_sink"
                bluetooth.codec = "sbc"
                device.description = "Boltune BT-BH021"
                device.string = "20:09:14:10:E8:BE"
                device.api = "bluez"
                device.class = "sound"
                device.bus = "bluetooth"
                device.form_factor = "headset"
                bluez.path = "/org/bluez/hci0/dev_20_09_14_10_E8_BE"
                bluez.class = "0x240404"
                bluez.alias = "Boltune BT-BH021"
                device.icon_name = "audio-headset-bluetooth"
                device.intended_roles = "phone"
        Ports:
                headset-output: Headset (type: Headset, priority: 0, availability unknown)
        Active Port: headset-output
        Formats:
                pcm
### Configuration dump generated at Fri Sep 23 19:34:36 2022


set-sink-volume alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1 0xccd
set-sink-mute alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1 no
suspend-sink alsa_output.pci-0000_01_00.1.hdmi-stereo-extra1 yes
set-sink-volume alsa_output.pci-0000_00_14.2.analog-stereo 0x828f
set-sink-mute alsa_output.pci-0000_00_14.2.analog-stereo no
suspend-sink alsa_output.pci-0000_00_14.2.analog-stereo yes
set-sink-volume ladspa_output.mbeq_1197.mbeq 0x828f
set-sink-mute ladspa_output.mbeq_1197.mbeq no
suspend-sink ladspa_output.mbeq_1197.mbeq yes
set-sink-volume bluez_sink.20_09_14_10_E8_BE.a2dp_sink 0x8102
set-sink-mute bluez_sink.20_09_14_10_E8_BE.a2dp_sink no
suspend-sink bluez_sink.20_09_14_10_E8_BE.a2dp_sink yes


set-card-profile alsa_card.pci-0000_01_00.1 output:hdmi-stereo-extra1
set-card-profile alsa_card.pci-0000_00_14.2 output:analog-stereo
set-card-profile bluez_card.20_09_14_10_E8_BE a2dp_sink

set-default-sink ladspa_output.mbeq_1197.mbeq