Sound upgrade - replace eq with Viper4Android

lightthief · Aug 10, 2019

mnestrud said:
Open the BusyBox app iirc. I use Android auto... Make sure in addition to BusyBox, you have the master viper switch turned on.

Sent from my Pixel 3 XL using Tapatalk

Has anyone been able to confirm if this can in fact change audio from a CarPlay connection.
Not just inferring it can from using Android audio.
I have viper4android working on Bluetooth audio but it won’t change anything from CarPlay.

VP9CRV · Sep 25, 2019

Hi everyone, a lot of good information on here about installs. I just put in new door speakers and a JL RD 900 5 channel amp. Now I need to tune it. Does anyone know at what volume the EX head unit distorts?

Accurus · Feb 13, 2020

Just adding a little info.

1. I can't get viper4 to work for apple car play or usb but works on Bluetooth.
2. I haven't put a meter on the head unit but my rather sensitive ears says about 28 volume is when distortion starts on the EX-L equivalent, I can't handle more than 25 on the stock speakers tho.

4WheelSpyder · Feb 21, 2020

mnestrud said:
Absolutely @Breaultk - dsp flat is great advice. Here is the link!

Note it is not for anyone on the touring or ex-l with upgraded sound (oem amp + sub). It won't break anything, it just doesn't work.

Does this comment about not working on the Touring apply to Viper4Android too or only the "dsp flat" device.

thanks

mnestrud · Feb 21, 2020

4WheelSpyder said:
Does this comment about not working on the Touring apply to Viper4Android too or only the "dsp flat" device.

thanks

Just dsp flat. I have viper working on my '17 touring. Dsp flat only works when the head unit is the dsp. Since the premium audio trims have an external amp with its own dsp, dsp flat doesn't work.

Unsure why the poster above can't get it to work with car play, but I can confirm it works with Android auto and Bluetooth.

Sent from my Pixel 3 XL using Tapatalk

mnestrud · Feb 21, 2020

Accurus said:
Just adding a little info.

1. I can't get viper4 to work for apple car play or usb but works on Bluetooth.
2. I haven't put a meter on the head unit but my rather sensitive ears says about 28 volume is when distortion starts on the EX-L equivalent, I can't handle more than 25 on the stock speakers tho.

Make sure you have the viper setting to lock all inputs to Bluetooth.

Sent from my Pixel 3 XL using Tapatalk

Accurus · Feb 21, 2020

Will try again later. Dsp flat works, set it to auto start. Viper worked on bluetooth fine but I couldn't tell any difference on apple carplay, tried my wife's android and it worked on android auto. it is locked to blue tooth but I might try lock to headphone out as I saw on the xpaforum.

4WheelSpyder · Feb 22, 2020

mnestrud said:
Just dsp flat. I have viper working on my '17 touring. Dsp flat only works when the head unit is the dsp. Since the premium audio trims have an external amp with its own dsp, dsp flat doesn't work.
Sent from my Pixel 3 XL using Tapatalk

Thanks for responding mnestrud.

I noted that this poster did not include the installation of supersu and Busybox in his summary.

5th Gen / 2017 CR-V EX audio upgrade log

This is a work in progress; I'll post more updates as I make more changes. I ran into a lot of unanswered questions in the course of these upgrades, so hopefully this info will help someone else. Background: My 2009 Fit Sport was totaled in August 2019, right after I'd replaced the head unit...

www.crvownersclub.com

Did he just miss it or is there additional functionality that these apps bring to the installation?

Accurus · Feb 23, 2020

you need supersu and Busybox to install viper, supersu grants super user full access to busy box and viper, busy box is some pre req program for viper. it's a linux thing for android.

4WheelSpyder · Feb 27, 2020

Thanks Accurus

Tracy 2017 CR-V EXL · Jul 23, 2020

We put in infinity speakers In the front doors, ($100 speakers), & sound dampening all 5 doors 100%, ($150). We used 80 mil Killmat, & 150 Norco closed Cell Foam over the top.
We did it last week.
Rich, crisp & nice base without spending a huge amount of money, and lowing the Dedible level in the cab by 5 Dsbl levels.
We considered just getting better speakers &/or replacement of all 8 speakers only. But why, if you can’t hear the difference? So instead we sound dampened all five doors, and replace only the front door speakers with infinity speakers.
We are considering dampening the floor, but we haven’t made a decision yet. We will however, Put in a woofer in the back similar to the woofer that is in the touring CRV. Nothing crazy, just enough to make a big difference.
Right now, The sound is amazing, the tweeters crack, woofer has much more bass, I can hear each individual instrument, and the sound is rich. If I didn’t dampen the doors, I think it would have made the cabin more noisy and the speakers may have sounded muddy without clarity. At this point, I will finish up the back doors and replace those speakers with the infinity $100 speakers. My car sounds great, and if we decide to do the floorboards and the wheel wells, I hope my car will sound like a high end car. I wish I could find someone who has done it already, to see if it’s something worth attempting. It’s fairly easy to dampen, simple, but takes time, but worth the work if you decide to do it.

kloker · Jul 24, 2020

Moving to Mobile Electronics section.

Milt83 · Nov 10, 2020

mnestrud said:
This post outlines my settings. Please note that I tuned this by ear to the style of music I listen to most (live jazz / improv, hiphop) and also some settings noted below are designed for my specific speaker setup. Official webpage and description here: 酷狗音乐 - 就是歌多 .

Non-Viper Settings:

HondaHack: Very minimal setup. Almost everything is turned off and I especially am not doing anything with audio routing in there.

OEM / Stock Honda Audio Settings: Low/Mid/High eq all set to 0dB / center

OEM / Stock Honda Balance Settings: Front/Rear and Left/Right set to neutral. I like my rear speakers a little quieter, and in the 'neutral' setting Honda has the rear speakers set quieter.

OEM / Stock Honda Subwoofer output: turned all of the way up (only there with OEM sub, you might not have this)

For the FX Settings, as you can in the photos it is really easy to turn on some music and toggle one effect on and off to hear the effect.

Viper Settings

Show Notification: On (swipe down from top of home screen to access viper)

Lock Effect Mode: Bluetooth (then you only need to edit settings in bluetooth - unknown how this works with hondahack audio routing settings!)

FX Compatible Mode: Normal (default)

Set default storage: /storage/emulated/0/ (default)

FX Settings - Bluetooth Device
anything not mentioned below will be 'off'

Master Power: On

Playback Gain Control: On : Slight

Spectrum Extension: On : 0.7 : (turn off for lossless music) - helps undo compression artifacts

FIREqualizer: On - see description below

Differential Surround: On : 2 ms delay - I really like this effect. See Haas Effect for more info.

ViPER Bass: On : Natural Bass, 40 Hz - tuned to the range on my subwoofer

ViPER Clarity: On : XHiFi - 3.5dB - on the fence, but I felt it helped balance the bass

AnalogX: On : Slight : supposed to mimic the sound of a class A amp. I liked it <shrug>

Master Gate (Limiter): Default values : this is supposed to help with clipping - beyond my expertise to change

For the FIREqualizer, I tuned this to my specific setup, which has components and a sub. Under the OEM sound settings, my Infinity tweeters are overpowering and mids/bass are lost a bit... so much so that you can hear the tweeters and mid speakers as separated sound sources from each other (bad!). So I tuned the equalizer to reduce the tweeter frequencies and increase the bass/mid frequencies, and the results, combined with the other settings above, is that I just hear "music" and not separate lows/mids/highs, which is a significant upgrade - I thought I would eventually put in an aftermarket amp with an LC2i to get here... I don't need it at all!

Here are the specs of my aftermarket speakers, which are important since I want to address the issues I mentioned using the FIREqualizer.

Speaker Freq. Response
RF-Subwoofer 38Hz-250Hz
Infinity-Door Woofer 45Hz-~2,000Hz
Infinity-Tweeter ~2,000Hz-35,000Hz

The strategy is to raise the sub levels and mid levels, and especially the levels where the different speakers overlap. Then, I significantly suppress the tweeter-only frequencies to address the aforementioned tinniness.

View attachment 130017

Here are a few more pictures just for showing off Viper and what it looks like:
View attachment 130019

View attachment 130021

View attachment 130023

Please post your own speaker setup, what amp and sub you have (if any), your own audio settings and results!

I want to thank you for this post and information! I'm not what you might call an audiophile but I was very disappointed in my CRv's sound and this change was incredible! Just the installation of the FX and driver, before changing any settings and with the factory EQ still on, made an amazing difference. I may not even change out my factory speaker now and leave the hardware as-is. Amazing transformation for only $25 (pro version of Honda Hack). Thanks again!!

djjimmy · Jan 16, 2021

Hey guys I'm having (what I think is) a driver problem with V4A. I carefully followed the instructions @menstrud posted, but keep getting this message saying the driver needs to be installed. After clicking OK it says to reboot the system only to pop back up again in an endless cycle. I'm using the SuperSu, BusyBox, and Viper4Android versions posted above, and can't seem to figure out how to fix this. My car is a 2016 Honda Accord. Android Version 4.2.2 is on the HU. When I view the driver details in Viper is says Version: 0.0.0.0 , Status: Abnormal, Enabled: No, Audio Format: Unsupported, Etc. So that's leading me to believe the driver isn't properly installing for some reason. Any ideas?

Sound upgrade - replace eq with Viper4Android

lightthief

VP9CRV

Accurus

4WheelSpyder

mnestrud

mnestrud

Accurus

4WheelSpyder

5th Gen / 2017 CR-V EX audio upgrade log

Accurus

4WheelSpyder

Tracy 2017 CR-V EXL

kloker

Milt83

djjimmy

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Speaker	Freq. Response
RF-Subwoofer	38Hz-250Hz
Infinity-Door Woofer	45Hz-~2,000Hz
Infinity-Tweeter	~2,000Hz-35,000Hz