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[How To][Mod][Magiskv16/TWRP]Get Dual Speaker Output (like S9) on S8/S8+ [Exynos]

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Am cleaning up & updating the thread

How To Video by @ISF


So, Samsung Galaxy S9 was launched, with an AKG tuned Stereo Speaker. A definitive upgrade from a single bottom firing Speaker on S8 & S8+

but, luckily for us, S8 & S8+ (Exynos Variant) user, there's a way to at least get a similar audio experience on our phone.

This is achieved by enabling our "earpiece speaker" as a secondary output. Creating a pseudo-stereo experience. Sure its nothing when compared to real stereo on S9, but hey, at least we got something right ?

So, how do we get that ? It's simple. We need to modify some lines on mixer_paths.xml file located in system/etc/
but lets make that easier, by providing a Magisk Module & TWRP flashable .zip for you to use.

For you Magisk User, simply download the GalaxyS8DualSpeakerMagiskModule from attachment, and flash it through your Magisk Manager.

If you use SuperSU, you can use TWRP zip also from the attachment, and flash it from your recovery.

Both file support latest OREO firmware and Magisk 16. (If you are still on Nougat, download Nougat version from attachment)

Now, to make it even better, you can then install Audio Mod to your S8, like Viper4FX or A.R.I.S.E the effect will applied to both of the speakers.

For Advanced User :

If you need to adjust the gain yourself, find these lines in mixer_gains and adjust the 35 or 40 value to your liking :

Quote:

<path name="gain-media-speaker">
<ctl name="HPOUT3L Input 1 Volume" value="35" />
<ctl name="HPOUT3R Input 1 Volume" value="35" />
</path>

<path name="gain-media-headset">
<ctl name="HPOUT2L Impedance Volume" value="107" />
<ctl name="HPOUT2R Impedance Volume" value="107" />
<ctl name="HPOUT2L Input 1 Volume" value="40" />
<ctl name="HPOUT2R Input 1 Volume" value="40" />
</path>

ORIGINAL MOD CREDIT goes to @MichaelGroth

Flashable TWRP & Magisk ZIP by me & @LinkseD.

Thank you @silvercat who brought this info on another device thread, and to @topjohnwu who made the systemless method for this mod possible through his Magisk creation.
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10th May 2017, 02:37 PM |#2  
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Thanks for the credit. But who is silvercat?
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10th May 2017, 02:43 PM |#3  
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Quote:
Originally Posted by MichaelGroth

Thanks for the credit. But who is silvercat?

The one who make me aware of your work, haha

Sorry, i'll split the info
10th May 2017, 02:55 PM |#4  
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Ah, ok Haha. np. If there is enough interest around this I will make a flashable version and I might also add some volume modifications. 👍
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10th May 2017, 03:34 PM |#5  
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Quote:
Originally Posted by MichaelGroth

Ah, ok Haha. np. If there is enough interest around this I will make a flashable version and I might also add some volume modifications. 👍

Given the numbers of "Thanks!" you're getting... I suspect there is interest shown to this initiative!

Else... Can anyone e confirm this is working properly on a rooted S8/S8+? Thanks!
10th May 2017, 03:38 PM |#6  
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Quote:
Originally Posted by dehnhaide

Given the numbers of "Thanks!" you're getting... I suspect there is interest shown to this initiative!

Else... Can anyone e confirm this is working properly on a rooted S8/S8+? Thanks!

Works well on mine, should be good for you too
10th May 2017, 03:39 PM |#7  
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Quote:
Originally Posted by MichaelGroth

Ah, ok Haha. np. If there is enough interest around this I will make a flashable version and I might also add some volume modifications. 👍

Would be awesome if you could boost the volume
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10th May 2017, 03:50 PM |#8  
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There is great interest. MANY THANKS
10th May 2017, 05:54 PM |#9  
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Good mod. Waiting for this for so long. Thanks bro.

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10th May 2017, 06:08 PM |#10  
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Very nice. Can you provide it in zip file? And maybe boost volume. Thanks!!!!!!
10th May 2017, 07:11 PM |#11  
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Can I assume from the title that you DO need root for this to work? My S8+ is not rooted and I want to keep my warranty, but this mod looks amazing
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