Viper4Android : how to increase Master Gate (Limiter) Beyond 6db? - AT&T Samsung Galaxy Note I717

Viper4Android : how to increase Master Gate (Limiter) Beyond 6db?
I need more Volume out of my headset/ 3.5mm jack for external speakers. Viper4Android helps with the Master Gate (Limiter) at 6db, but it could still use some more. I wish I could go into scratchy db levels & dial back to find a good medium.
Thanks

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I have been using Audio FX for years. It is free in PlayStore, has no Ads, and has the following features:
1. Bass boost
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Does it have mono downmix?

[MOD] Nexus 5 mixer_paths Tweaks

I have been researching and playing around with mixer_paths.xml file in an effort to increase the volume of my phone as well as the gain of the mic.
I would like to share what I have found and open it up to the community.
Location
Code:
/system/etc/mixer_paths.xml
Purpose
The mixer_paths file acts as a audio routing map of sorts. It controls the routing of audio to the various registers on the DAC (Digital-to-Analog Converter). It assigns the registers as well as digital volume levels, digital gain, and analog gain.
Additional Info/References
The Nexus 5 is equipped with the WCD9320 DAC.
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Audio tips for the Xperia X Compact

My previous setup for music was to cast Spotify to my Chromecast Audio, through a tube amp to my DT990 250 ohm headphones (really good cans for $129). Although this was nice, I always felt restrained to my chair for quality audio enjoyment. That all changed with the Xperia X Compact.
I'm really impressed with this small device. The audio output is by far the best I've come across. The 24-Bit DAC, 192kHz is pretty standard nowadays but the software is what makes all the difference. I wanted that Walkman vibe and I definitely got that with this device.
Setting > Sound > Audio setting
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ClearAudio+
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I've recently made a mod for my device managing to enable the earpiece/speakerphone during media playback and turning my phone into a stereo capable device. However, as expected, the earpiece won't sound as loud as the main speaker. I tweaked the gains but it's not enough.
What i am trying to create is a modification that will make a point of intersection where both the earpiece and the main speaker have the same loudness. After that point, the phonespeaker will remain at its maximum volume and the main speaker will keep up with the media volume slider.
There would be one simple way to double the earpiece gain or triple it or finding a certain level that matches the loudness of the main speaker until a certain point but the main issue is that the media volume slider will keep adjusting the loudness of the earpiece, making a lot of distortion afterwards.
I need someone to explain me how to disable media volume control for the earpiece after a certain media volume level, thank you.
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Bump

Bluetooth volume on Android R is low.

Anybody faced little lower bluetooth volume on Android R compared to Q? The bass just feels less thumpy & the mids are just too low. On Q it's loud & fine, but on R, seems like some sort of vendor change is gone through.
Currently I'm sticking to Q roms. And will never shift to R until this problem resolves.
To increase the bt volume generally you could use a volume boosting app from the playstore
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