[pulseaudio-discuss] Unable to get any audio output from module-equalizer-sink
Arun Raghavan
arun at arunraghavan.net
Wed Jun 1 09:50:38 UTC 2016
On Thu, 26 May 2016, at 09:05 PM, Lutchy Horace (Mailing List) wrote:
> Hello,
>
> Manjaro 16.06
> Pulseaudio 8.0
>
> I am having trouble getting any audio output from my sound card whenever
> I switch sinks via pavcountrol to 'FFT...' equalizer sink.
>
> $ pacmd list-sinks
> 3 sink(s) available.
> index: 0
> name: <alsa_output.pci-0000_01_00.1.hdmi-stereo>
> driver: <module-alsa-card.c>
> flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
> state: IDLE
> suspend cause:
> priority: 9050
> volume: front-left: 39308 / 60% / -13.32 dB, front-right:
> 39308 / 60% / -13.32 dB balance 0.00
> base volume: 65536 / 100% / 0.00 dB
> volume steps: 65537
> muted: no
> current latency: 39.79 ms
> max request: 6 KiB
> max rewind: 344 KiB
> monitor source: 0
> sample spec: s16le 2ch 44100Hz
> channel map: front-left,front-right
> Stereo
> used by: 0
> linked by: 1
> configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
> card: 0 <alsa_card.pci-0000_01_00.1>
> module: 6
> properties:
> alsa.resolution_bits = "16"
> device.api = "alsa"
> device.class = "sound"
> alsa.class = "generic"
> alsa.subclass = "generic-mix"
> alsa.name = "HDMI 0"
> alsa.id = "HDMI 0"
> alsa.subdevice = "0"
> alsa.subdevice_name = "subdevice #0"
> alsa.device = "3"
> alsa.card = "1"
> alsa.card_name = "HDA ATI HDMI"
> alsa.long_card_name = "HDA ATI HDMI at 0xfea60000 irq
> 41" alsa.driver_name = "snd_hda_intel"
> device.bus_path = "pci-0000:01:00.1"
> sysfs.path =
> "/devices/pci0000:00/0000:00:02.1/0000:01:00.1/sound/card1" device.bus
> = "pci" device.vendor.id = "1002"
> device.vendor.name = "Advanced Micro Devices, Inc.
> [AMD/ATI]" device.product.id = "aab0"
> device.product.name = "Cape Verde/Pitcairn HDMI Audio
> [Radeon HD 7700/7800 Series]" device.string = "hdmi:1"
> device.buffering.buffer_size = "352768"
> device.buffering.fragment_size = "176384"
> device.access_mode = "mmap+timer"
> device.profile.name = "hdmi-stereo"
> device.profile.description = "Digital Stereo (HDMI)"
> device.description = "Cape Verde/Pitcairn HDMI Audio
> [Radeon HD 7700/7800 Series] Digital Stereo (HDMI)" alsa.mixer_name =
> "ATI R6xx HDMI" alsa.components = "HDA:1002aa01,00aa0100,00100300"
> module-udev-detect.discovered = "1"
> device.icon_name = "audio-card-pci"
> ports:
> hdmi-output-0: HDMI / DisplayPort (priority 5900,
> latency offset 0 usec, available: yes) properties:
> device.icon_name = "video-display"
> active port: <hdmi-output-0>
> * index: 1
> name: <alsa_output.pci-0000_00_14.2.analog-stereo>
> driver: <module-alsa-card.c>
> flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME
> LATENCY DYNAMIC_LATENCY state: RUNNING
> suspend cause:
> priority: 9959
> volume: front-left: 45654 / 70% / -9.42 dB, front-right:
> 45654 / 70% / -9.42 dB balance 0.00
> base volume: 65536 / 100% / 0.00 dB
> volume steps: 65537
> muted: no
> current latency: 39.83 ms
> max request: 6 KiB
> max rewind: 344 KiB
> monitor source: 1
> sample spec: s16le 2ch 44100Hz
> channel map: front-left,front-right
> Stereo
> used by: 1
> linked by: 3
> configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
> card: 1 <alsa_card.pci-0000_00_14.2>
> module: 7
> 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 = "HD-Audio Generic"
> alsa.long_card_name = "HD-Audio Generic at 0xfeb00000
> 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 = "1022"
> device.vendor.name = "Advanced Micro Devices, Inc.
> [AMD]" device.product.id = "780d"
> device.product.name = "FCH Azalia Controller"
> 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"
> alsa.mixer_name = "Realtek ALC887-VD"
> alsa.components = "HDA:10ec0887,1458a182,00100302"
> module-udev-detect.discovered = "1"
> device.icon_name = "audio-card-pci"
> ports:
> analog-output-lineout: Line Out (priority 9900, latency
> offset 0 usec, available: yes) properties:
>
> analog-output-headphones: Headphones (priority 9000,
> latency offset 0 usec, available: no) properties:
> device.icon_name = "audio-headphones"
> active port: <analog-output-lineout>
> index: 2
> name: <alsa_output.pci-0000_00_14.2.analog-stereo.equalizer>
> driver: <module-equalizer-sink.c>
> flags: HW_MUTE_CTRL LATENCY DYNAMIC_LATENCY
> state: IDLE
> suspend cause:
> priority: 1000
> volume: front-left: 45654 / 70%, front-right: 45654 / 70%
> balance 0.00
> base volume: 65536 / 100%
> volume steps: 65537
> muted: no
> current latency: 71.42 ms
> max request: 62 KiB
> max rewind: 689 KiB
> monitor source: 3
> sample spec: float32le 2ch 44100Hz
> channel map: front-left,front-right
> Stereo
> used by: 0
> linked by: 1
> configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
> module: 25
> properties:
> device.description = "FFT based equalizer on Built-in
> Audio Analog Stereo" device.master_device =
> "alsa_output.pci-0000_00_14.2.analog-stereo" device.class = "filter"
> device.icon_name = "audio-card"
>
> See https://dpaste.de/hZRP for pactl list output
>
>
> I see volume gain from the application and the equalizer sink in
> PAVCONTROL but no audio coming out of the sound card. Am I missing
> something?
>
> I have somewhat similar situation with this person
> https://bbs.archlinux.org/viewtopic.php?pid=1315907#p1315907. I will
> give his solution a shot and report back.
You might also want to look at verbose server logs to see what might be
happening.
-- Arun
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