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How To unmute and maximize volume from the command line in Ubuntu?

Ubuntu 12

In this article, we will delve into the process of unmuting and maximizing volume from the command line in Ubuntu. This can be particularly useful if you’re working on a server or if you prefer using the command line over the GUI.

Understanding the Basics

Before we start, it’s important to understand that we will be using the amixer command. The amixer command is a part of the ALSA (Advanced Linux Sound Architecture) system that allows you to control your sound devices. It’s a powerful tool that can be used to control the volume and other sound settings.

Unmuting and Maximizing Volume

Here are a few different ways to unmute and maximize the volume using the amixer command.

Solution 1:

amixer sset Master mute
amixer sset Master unmute

In these commands, sset is used to set the simple mixer control contents. ‘Master’ is the control name and ‘mute’/’unmute’ are the commands to mute or unmute the volume respectively.

However, it’s important to note that this solution may not work for all users due to different sound card settings or configurations.

Solution 2:

amixer -c 0 set Master playback 100% unmute

In this command, -c 0 is used to select the first card. ‘set’ is used to modify a control’s contents, ‘Master playback 100%’ sets the Master playback volume to 100%, and ‘unmute’ unmutes the volume.

This command has been reported to work for some users, but not all.

Solution 3:

amixer -c 0 set Master playback 0% mute
amixer -c 0 set Master playback 100% unmute

This solution first sets the Master playback volume to 0% and mutes it, then sets it to 100% and unmutes it. This workaround has been reported to work for some users.

Troubleshooting

If none of the above solutions work for you, it’s possible that there may be other factors or configurations affecting the amixer command. Here are a few things you can try:

  • Check your sound card settings: Use the aplay -l command to list your sound cards and digital audio devices. Make sure that the correct card and device are selected.
  • Try different controls: Instead of ‘Master’, try using ‘Front’, ‘Speaker’, or ‘Headphone’. The control name depends on your sound card.
  • Consult the documentation or support: The ALSA project has a comprehensive documentation that you can refer to. You can also seek help from the Ubuntu community or other online forums.

Conclusion

In conclusion, the amixer command is a powerful tool to control your sound settings from the command line in Ubuntu. However, due to the variety of sound cards and configurations, it may require some trial and error to find the right command for your system. We hope this article has been helpful in guiding you through this process.

How can I check if my sound card is muted?

You can check if your sound card is muted by running the command amixer sget Master. Look for the "Mono:" line in the output. If it says "Mono: Playback [on]", then your sound card is not muted. If it says "Mono: Playback [off]", then your sound card is muted.

How can I increase the volume using the command line?

To increase the volume using the command line, you can use the command amixer -c 0 set Master playback [percentage]% unmute, replacing [percentage] with the desired volume level (e.g., 50% for 50% volume). This command will unmute the volume and set it to the specified percentage.

How can I decrease the volume using the command line?

To decrease the volume using the command line, you can use the command amixer -c 0 set Master playback [percentage]% unmute, replacing [percentage] with the desired volume level (e.g., 50% for 50% volume). This command will unmute the volume and set it to the specified percentage.

How can I mute the volume using the command line?

To mute the volume using the command line, you can use the command amixer -c 0 set Master mute. This command will mute the volume on your sound card.

How can I unmute the volume using the command line?

To unmute the volume using the command line, you can use the command amixer -c 0 set Master unmute. This command will unmute the volume on your sound card.

How can I check the current volume level?

You can check the current volume level by running the command amixer sget Master. Look for the "Front Left:" or "Mono:" line in the output. The percentage value next to it represents the current volume level.

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