Defeating phone DAC automatic or manual?

[Sguirrelfeather]

Was reading through some old threads and saw a post about wanting your phone's DAC to be bypassed so the HU could do the decoding. I never really thought about this before. Is it something that happens automatically? Do you have to set this? Is it always done via USB and not on bluetooth or vice versa? Anyone in the know?

Click to read more...

 

[Sguirrelfeather]

173 views and no one has any info? dang

 

[The Camry]

173 views and no one has any info? dang

Cuz people are ignorant here.

Anyway, The internal DACS of your phone are only used when outputting a signal through the AUX out. If you have an OTG usb cable plugged into your phone, the phone will send out a digital signal through the OTG cable. You then run into the issue of what connects to an mini-usb wire and receives audio. I dont believe you could plug it into the usb in on the head unit and have it work. I've never tried it but im pretty sure it doesnt work like that.

However, you can plug an Apple product into any pioneer headunit through the usb-lightning cable and the pioneer will bypass the apple's internal DACs.

 

[Sguirrelfeather]

Ahhhh, ok, cool. Makes sense. So, can I assume the same can be said about playing over BT to the HU?

 

[los33 10+ year member]

Ahhhh, ok, cool. Makes sense. So, can I assume the same can be said about playing over BT to the HU?

Every new phone has a internal dsp/dac that is used over bt and aux.
Only thing that can be done is jailbreak/root your phone to output a flat eq to allow the head unit to process the rest.

Sent from my SM-N950U using Tapatalk

 

[The Camry]

Ahhhh, ok, cool. Makes sense. So, can I assume the same can be said about playing over BT to the HU?

For sound quality. BT is garage unless its the VERY newest BT and your headunit has the very newest as well.

do some research on bt sound quality

 

[Sguirrelfeather]

Every new phone has a internal dsp/dac that is used over bt and aux.
Only thing that can be done is jailbreak/root your phone to output a flat eq to allow the head unit to process the rest.

So basically, to bypass the phone's processing, have to use USB.

For sound quality. BT is garage unless its the VERY newest BT and your headunit has the very newest as well.
do some research on bt sound quality

Oh, I definitely have. My HU has version 4.2, but I can't find info on the phone. It's a Motorola Z-Force, so I imagine it has to be decent. I need to get a USB-C adapter to try the phone via USB so I can compare the quality.

EDIT: Well of course I find it under the first link after trying different search parameters. lol Phone has version 4.1

 

[Jcsaudio]

I always found this article useful.

https://www.crutchfield.com/learn/learningcenter/car/oem/connections_sound_quality.html

 

[Jeffdachef 5,000+ posts]

For sound quality. BT is garage unless its the VERY newest BT and your headunit has the very newest as well.
do some research on bt sound quality

nope you just gotta tune around it. Blind test, people cant figure out whats a store bought CD and whats 320kbps bluetooth on my setup when each gets its own EQ curve and SLA configured properly.

Only reason people think its garbage is because they expect keeping the same settings for CD will work for BT and thats just user tuning failure.

 

[Sguirrelfeather]

Wait....people still listen to CDs??? lol

 

[Jcsaudio]

Wait....people still listen to CDs??? lol

yup and with just 16 bit, 44k for a CD makes me wonder just how much better those pricy FLAC high res music files really are.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/nerd.gif.c6fa51ddf7ff75f1c0371fbc648f70ae.gif