Alsamixer com Alsaequal [RESOLVIDO]

1. Alsamixer com Alsaequal [RESOLVIDO]

TIMUS
(usa Debian)

Enviado em 05/01/2023 - 02:28h

Boa galera
Uso debian 11 64/32 bit e após instalar a biblioteca de aprimoramento de áudio alsa (libasound2-plugin-equal) o áudio do emulador Zsnes ficou mudo e gera essa mensagem no terminal.

ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_pcm_equal.so (/lib/i386-linux-gnu/alsa-lib/libasound_module_pcm_equal.so: wrong ELF class: ELFCLASS64)

Só então tive conhecimento que o alsaequal não tem suporte multlib.

Tentei resolver substituindo meu arquivo de configuração .asoundrc que fazia apenas o alsaequal funcionar por essa configuração abaixo, que pretende fazer justamente o que quero. Desviar comportamentos 32bit do alsaequal. Porém, também não tive sucesso.



# Set the default backend card and device to the onboard Intel HDA codec; see

# /proc/asound/cards for the names of the cards in the system.

defaults.pcm.!card Intel

defaults.ctl.!card Intel

defaults.pcm.!device 0

defaults.ctl.!device 0



# Equalizer definition, uses dmix internally; use amixer in a script to adjust

# the equalizer boost/cut levels, or use the following command to adjust the

# levels interactively.

#

#   alsamixer -D equal

#

ctl.equal {

  type equal;

}

pcm.equal {

  type equal;

  slave.pcm "plug:dmix";

}



# The alsaequal plugin is not compatible with 32-bit programs on amd64, so it

# will crash them with the following message:

#

#   Failed to load plugin "/usr/lib/ladspa/caps.so": /usr/lib/ladspa/caps.so: wrong ELF class: ELFCLASS64

#

# To get around this, the asymed definition takes two parameters: PLAY and

# CAPT, to direct the slave PCMs. These are controlled either by arguments

# in the slave definition (i.e. slave.pcm "asymed:dmix,dsnoop" ), or by

# environment variables (ALSA_ASYM_PLAY=dmix ALSA_ASYM_CAPT=dsnoop aplay ...)

pcm.asymed {

  @args [ PLAY CAPT ]

  @args.PLAY {

    type string

    default {

      @func getenv

      vars [

        ALSA_ASYM_PLAY

      ]

      default "equal"

    }

  }

  @args.CAPT {

    type string

    default {

      @func getenv

      vars [

        ALSA_ASYM_CAPT

      ]

      default "dsnoop"

    }

  }

  type asym;

  playback.pcm $PLAY;

  capture.pcm $CAPT;

}



# Set the default playback device to the above asymed soft-device

pcm.!default {

  type plug;

  slave.pcm asymed;

}

Alguém poderia melhorar essa configuração, visto que não tenho conhecimento suficiente.

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2. Re: Alsamixer com Alsaequal [RESOLVIDO]

alexabolada
(usa Debian)

Enviado em 05/01/2023 - 02:28h

R: Para conseguir usar o alsaequal com programas de 32bit no amd64, você deve utilizar a configuração abaixo no seu .asoundrc:



# Set the default backend card and device to the onboard Intel HDA codec; see

# /proc/asound/cards for the names of the cards in the system.

defaults.pcm.!card Intel

defaults.ctl.!card Intel

defaults.pcm.!device 0

defaults.ctl.!device 0



# Equalizer definition, uses dmix internally; use amixer in a script to adjust

# the equalizer boost/cut levels, or use the following command to adjust the

# levels interactively.

#

#   alsamixer -D equal

#

ctl.equal {

  type equal;

}

pcm.equal {

  type equal;

  slave.pcm "plug:dmix";

}



# The alsaequal plugin is not compatible with 32-bit programs on amd64, so it

# will crash them with the following message:

#

#   Failed to load plugin "/usr/lib/ladspa/caps.so": /usr/lib/ladspa/caps.so: wrong ELF class: ELFCLASS64

#

# To get around this, the asymed definition takes two parameters: PLAY and

# CAPT, to direct the slave PCMs. These are controlled either by arguments

# in the slave definition (i.e. slave.pcm "asymed:dmix,dsnoop" ), or by

# environment variables (ALSA_ASYM_PLAY=dmix ALSA_ASYM_CAPT=dsnoop aplay ...)

pcm.asymed {

  @args [ PLAY CAPT ]

  @args.PLAY {

    type string

    default {

      @func getenv

      vars [

        ALSA_ASYM_PLAY

      ]

      default "equal"

    }

  }

  @args.CAPT {

    type string

    default {

      @func getenv

      vars [

        ALSA_ASYM_CAPT

      ]

      default "dsnoop"

    }

  }

  type asym;

  playback.pcm $PLAY;

  capture.pcm $CAPT;

}



# Set the default playback device to the above asymed soft-device

pcm.!default {

  type plug;

  slave.pcm asymed;

}

Agora você terá suporte para 32bit no amd64, desde que carregue sua configuração do .asoundrc. Para isso, execute o seguinte comando no terminal:

$ alsactl -F -f ~/.asoundrc load

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3. Re: Alsamixer com Alsaequal [RESOLVIDO]

TIMUS
(usa Debian)

Enviado em 05/01/2023 - 03:09h

Usei o comando com restore, pois o load não é reconhecido.
$ alsactl -F -f ~/.asoundrc restore

Obtive a mensagem abaixo e a mensagem de erro do zsnes persiste.



No state is present for card Intel

alsa-lib parser.c:260:(error_node) UCM is not supported for this HDA model (HDA Intel at 0xfcffc000 irq 26)

alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -6

Found hardware: "HDA-Intel" "VIA VT1708BCE" "HDA:1106e721,10192683,00100100" "0x1019" "0x2683"

Hardware is initialized using a generic method

No state is present for card Intel

No state is present for card NVidia

alsa-lib parser.c:260:(error_node) UCM is not supported for this HDA model (HDA NVidia at 0xfea7c000 irq 17)

alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:1 use case configuration -6

Found hardware: "HDA-Intel" "Nvidia GPU 14 HDMI/DP" "HDA:10de0014,10de0101,00100100" "0x1acc" "0x43c5"

Hardware is initialized using a generic method

No state is present for card NVidia

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4. Re: Alsamixer com Alsaequal [RESOLVIDO]

TIMUS
(usa Debian)

Enviado em 07/01/2023 - 01:28h

Após procurar em vários sites e alguns teste. A solução que funcionou foi a dica desse site: https://bbs.archlinux.org/viewtopic.php?id=97653 Não era da maneira que com eu queria. Porém, como é apenas para um programa, serviu! Usei dois aquivos .asoundrc no diretório home, como sugerido.

.asoundrc



pcm.dmixer {

    type dmix

    ipc_key 1024 # must be unique!

   slave {

        pcm {

        type hw

        card Intel # name of the card, see aplay -L

        device 0

    } 

    buffer_size 4096 # needs to be set!

    }

}



ctl.equal {

  type equal;

}



pcm.plugequal {

  type equal

  slave.pcm "plug:dmixer" 

  #needs "plug:" cause of floating point transition

}



ctl.!default {

    type hw

    card Intel

}



pcm.!default {

  type plug

  slave.pcm plugequal

}

.asoundrc.default



ctl.!default {

    type hw

    card Intel

}



pcm.dmixer {

    type dmix

    ipc_key 1024 # must be unique!

   slave {

        pcm {

        type hw

        card Intel

        device 0

    } 

    }

}



pcm.!default {

    type plug

    slave.pcm dmixer

}

E um script simpes para alternar os arquivos de configuração e executar o zsnes sem o alsaequal.

.alsasnes.sh



#!/bin/bash

PROSS=$(PATH=$PATH:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin)

ALSARESTORE=$(alsactl -F -f ~/.asoundrc restore)

HOME=$(cd ~/)



HOME

PROSS 

mv .asoundrc .asoundrc.equal

mv .asoundrc.default .asoundrc

ALSARESTORE

zsnes

mv .asoundrc .asoundrc.default

mv .asoundrc.equal .asoundrc

ALSARESTORE