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Sunday, June 2, 2013

How to Boost Speaker Volume on Your Samsung Galaxy S4 [Tutorial]

 

For those who feel your Samsung Galaxy S4 is not loud enough to hear the ringtone on a crowded place, here is a workaround from DroidViews to boost the speaker volume.

Increase-Speaker-Volume-Galaxy-S4

If you browse the /system/etc directory on your device, you will find 2 files, namely “default_gain.conf” and “Volume.db”. These files contain the configuration of volume intensity values that determine how loud the sound output of your device will be. By editing those values using appropriate method, you can significantly increase or decrease the speaker volume of your Samsung Galaxy S4.

Requirements:

  • A rooted Samsung Galaxy S4. Check out our rooting tutorial.
  • Modded volume gain configuration file: Default_gain.Zip
  • Default volume gain file (to restore if anything goes wrong): Default_gain_backup.Zip
  • Install a good root file explorer app on your Galaxy S4.

    How to Boost Galaxy S4 Volume:

    Follow the steps given below to increase volume on your Galaxy S4:

  • Extract the “default_gain.zip” file and copy default_gain.conf  to your device’s internal or external SD card.
  • Open the root explorer app and navigate to the /system/etc folder. Here you will find the original volume configuration file for your phone. Backup the original volume gain file present on your Galaxy S4 by copying and pasting them to the external storage. You can later restore the original volume settings by restoring the files to the /system/etc directory.

    backup-the-original-volume-files
  • Now navigate to default_gain.conf, tap and hold it and select “Copy” option.
  • Navigate to the /system/etc folder and paste the file here. When it prompts to overwrite the file, choose  “Yes”.
  • When the file is copied, fix its permission to rw-r–r–. Tap and hold the default_gain.conf file and select “Permissions”. Now configure the permissions as shown below.

    galaxy-s4-volume-hack-fix-permission
  • Finally, reboot the phone.

    Done! Now you should experience enhanced and louder speaker volume on your Samsung Galaxy S4.


    Do it Yourself:

    In case you feel the volume too loud for you, you can edit the volume values yourself. The volume gain configuration in the file provided above has following values:

    General Volume (Normal, Speaker) increased from 112 to 132.
    Ringtone Volume (Ringtone, Speaker) increased from 112 to 132.
    Earpiece Volume (Incall, Earpiece) increased from 128 to 132.
    Speakerphone Volume (Incall, Speaker) increased from 144 to 154


    Here is an example of how you can modify the volume gain values as per your requirements:

    Original Code:

    Modifier "Ringtone" {
    SupportedDevice {
    "Speaker"
    }
    Enable {
    { "Speaker Digital Volume", 112 },
    { "SPKOUTL Input 1 Volume", 32 },
    { "SPKOUTL Input 2 Volume", 32 },
    }
    }

    Modified Code:

    Modifier "Ringtone" {
    SupportedDevice {
    "Speaker"
    }
    Enable {
    { "Speaker Digital Volume", 142 },
    { "SPKOUTL Input 1 Volume", 32 },
    { "SPKOUTL Input 2 Volume", 32 },
    }
    }

    Let us know if this helped you on our comments section. Cheers!



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