Located at the bottom of the Samsung Galaxy Note 3 lies the speaker from which music, notifications, and most other audio comes from, which provides warm and clear sound when needed.
When you need the audio to be louder, that's where third-party speakers come in handy, which you could have at home or carry around for when the occasion calls. But what if you're in a situation where all you have is your phone, yet you still want the audio to be louder?
Going off langeveld024's work on the Galaxy S5, XDA members 954wrecker, Josh Roberson, and Chris Hollingsworth developed an easy-to-install mod for the Galaxy Note 3 that allows audio to come out of the bottom speaker and front earpiece simultaneously, providing louder, fuller stereo sound.
For this guide, you'll need to be rooted and have a custom recovery installed: either Safestrap for bootloader-locked devices (AT&T and Verizon Wireless) or TWRP for all other variants of the Galaxy Note 3.
Through your recovery, back up your ROM just in case anything goes wrong. This way you can always go back and restore your Note to its previous state.
Download the SurroundSoundMod .zip file directly onto your Note 3.
Using Root Browser (or any other file explorer), extract the SurroundSoundMod file. Inside the ZIP you'll find four different folders:
- loud_combined: front and bottom speaker (loud)
- loud_seperate: front speaker (loud)
- normal_combined: front and bottom speaker (normal)
- normal_seperate: front speaker (normal)
Choose the folder with the mod you want, each of which contains the mixer_paths.xml file that you'll be using to enable the front earpiece to play audio.
For this guide, I'll be using the mixer_paths.xml file from the loud_combined folder, just to show you how loud audio coming from both speakers can get (watch the video above for the demo).
Copy the mixer_paths.xml file, head over to /system/etc and find the stock mixer_paths.xml file that's already in place. Rename the stock mixer_paths.xml file by adding .bak to the end of it (so it's saved as a backup file), then paste the new mixer_paths.xml to the same location.
Now hold down on the new mixer_paths.xml file and set permissions to "rw-r--r--" (0064), just like in the screenshot below.
Now just reboot your device, play some music or watch a video, and enjoy the sound coming from both the bottom speaker and front earpiece (if you selected the loud_combined or normal_combined file).
Experiment with the four files from each folder and see which one best suits your needs—just remember that a reboot is needed to activate any changes made.
To go back to the stock bottom speaker-only audio, just delete the new mixer_paths.xml file and remove the ".bak" extension from the original file, then reboot your device.
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