DiyMobileAudio.com Car Stereo Forum banner

81 - 100 of 118 Posts

·
Registered
Joined
·
200 Posts
Where do you store your music files? Right on the phone or an external drive?
As you have an S7, you have a micro sd slot where you can put your music on. Go as big and as fast as you like. From what I've read the Onkyo HF Player app allows you to stream from external sources so with the right USB C adapter you could hook up an external drive even.

Sent from my HD1905 using Tapatalk
 

·
Registered
Joined
·
312 Posts
As you have an S7, you have a micro sd slot where you can put your music on. Go as big and as fast as you like. From what I've read the Onkyo HF Player app allows you to stream from external sources so with the right USB C adapter you could hook up an external drive even.

Sent from my HD1905 using Tapatalk
Yeah I am thinking about upgrading my phone. I have been resisting temptation to upgrade because these damn things are $30-35 per month to finance (x2 because wifey won't have anything to do with me getting a new phone without her :cautious::LOL:). I may look into buying two second-hand S9's or whatever instead of going brand new.

I picked up this BT module, but it looks like the best way to go may be USB DAC to optical straight to the Helix (thanks opekone :)). That brings up the charging issue, which drives buying a hub like the Lava STS-3U.

So yes, large internal micro-SD storage or I am trying to figure out if I can connect a USB-stick to the hub and access music off it while sending it to the DAC.
 

·
Registered
Joined
·
200 Posts
There are a couple phone mounts that allow you to change wirelessly, that would be a solution for charging, just be sure to get a phone that has it. In my case wife likes to hold on to phones to they die, took her S7 screen to have a pixel line through it (panel failure) to upgrade to the S10.

You mention a Bluetooth module, which/what is it.

USB DAC? Is that a USB C to something adapter or a cable of some sort? I'm interested in that, read it a few posts back today and was wondering how that all plugs in from the USB C of the phone on down. As i don't have an optical in (yet) wonder if DAC to RCA input to the DSP is doable.

So many questions! Ugh sorry!



Sent from my HD1905 using Tapatalk
 

·
Registered
Joined
·
312 Posts
DAC - Digital to Analog converter. They do have USB to RCA also. Basically, cell phones have DAC's already in them. It is what is used every time you plug in a set of headphones. However, the DAC's built into most cell phones suck. I believe the DAC connected to the 3.5mm headphone jack on the S7 is 16 bit. If you get an app that can output music via USB, like UAPP, you can play 24 bit music, but the digital signal needs to be converted to an analog signal, which is where the external DAC comes into play. Of course for most people, 16 bit is good enough if they're running it through a crappy set of headphones or the HU of their OE system.

 

·
Registered
Joined
·
734 Posts
Discussion Starter #85
I use Tidal and stream my music. With cloud based lossless music services for as low as 15 a month, and considering the availibility of no frills unlimited data plans... it's really a fools errand to try and maintain a music library anymore.

Music streams from the cloud to my phone. From the phone it passes through USB to get to the DAC/DSP. UAPP lets me stream from the cloud, then send bit perfect data to my DAC. Pretty good deal.
 

·
Registered
Joined
·
312 Posts
I use Tidal and stream my music. With cloud based lossless music services for as low as 15 a month, and considering the availibility of no frills unlimited data plans... it's really a fools errand to try and maintain a music library anymore.

Music streams from the cloud to my phone. From the phone it passes through USB to get to the DAC/DSP. UAPP lets me stream from the cloud, then send bit perfect data to my DAC. Pretty good deal.
Are you using a hub for simultaneous charging?
 

·
Registered
Joined
·
734 Posts
Discussion Starter #89 (Edited)

·
Registered
Joined
·
312 Posts

Thanks buddy! (y) 😇 😇 😇 (y)


Oh wow. Even better!! I am assuming you can connect the third port to your DAC.
 

·
Registered
Joined
·
734 Posts
Discussion Starter #91
Oh wow. Even better!! I am assuming you can connect the third port to your DAC.
It's an otg cable that supplies power. The third port is just for power. They have a few different models that supply power through different means. This one is5v from a usb cable

Sent from my SM-G965U1 using Tapatalk
 

·
Registered
Joined
·
734 Posts
Discussion Starter #93
The DAC is an internal integrated chip in the Helix DSP. It receives power from the Helix unit itself.

When you connect your phone or tablet to a device with an OTG cable your phone does not get charged. This is an OTG cable with a third inlet so you can feed a power source into your device. It's not that the phone is using it's battery to supply the DAC with power (although that does happen in some situations), it's that the phone isn't being charged when it's plugged into the DAC. This device allows your phone to get charged while it's connected via an OTG cable.

The "simulcharge" technology is just that. It's an OTG port that supplies power to the master device.
 

·
Registered
Joined
·
312 Posts
The DAC is an internal integrated chip in the Helix DSP. It receives power from the Helix unit itself.

When you connect your phone or tablet to a device with an OTG cable your phone does not get charged. This is an OTG cable with a third inlet so you can feed a power source into your device. It's not that the phone is using it's battery to supply the DAC with power (although that does happen in some situations), it's that the phone isn't being charged when it's plugged into the DAC. This device allows your phone to get charged while it's connected via an OTG cable.

The "simulcharge" technology is just that. It's an OTG port that supplies power to the master device.
Oh ok. I was under the impression you were using an external DAC between your phone and the DSP, such as this:


I didn't realize that wasn't necessary with the Helix. So with the HEC USB on the Helix, the DAC is internal and no external DAC is required (because that is what the HEC basically is). Without the HEC USB, the other option would be to get a USB to Optical adapter and run optical into the DSP, correct?

I bought the damn HEC BT Module not realizing there were devices out there offering simulcharging! :mad:🤬🤬
 

·
Registered
Joined
·
734 Posts
Discussion Starter #95 (Edited)
Oh ok. I was under the impression you were using an external DAC between your phone and the DSP, such as this:


I didn't realize that wasn't necessary with the Helix. So with the HEC USB on the Helix, the DAC is internal and no external DAC is required (because that is what the HEC basically is). Without the HEC USB, the other option would be to get a USB to Optical adapter and run optical into the DSP, correct?

I bought the damn HEC BT Module not realizing there were devices out there offering simulcharging! :mad:🤬🤬
The HEC is just an expansion slot. helix expansion channel? idk. All DSPs have a DAC and an ADC. But you can't run a USB input into the DAC of most DSPs. All DSPs need a DAC to convert the digital signal they are processing back to analog.

In the case where you run high level inputs or RCA cables into the DSP you are sending an analog signal into the unit. The DSP takes the signal and runs it into the the ADC (analog to digital converter) and then it does all that digital signal processing we love so much. Then it runs through the DAC and you get a nice line level analog output.

We can avoid one step by sending a digital signal into the DSP. You can use the HEC expansion slot to input through USB or bluetooth, or you can do like you assumed I was doing by say using a Topping d30 as a very clean USB to SPDIF converter then running that still-digital SPDIF signal into the DSP. Then the DSP takes that digital signal and runs it through the digial processing magic, then finally through the DAC.

I just want to note this is meerly an assumption of the signal path within the Helix. For all I know my phone could interface with a DAC in the Helix that runs the digital signal right into the ADC. But I have more faith in ATF than that. :)
 

·
Registered
Joined
·
1,687 Posts
By the way, got a response from JL Audio regarding their Fix line of OE integration processors:

****
Hello, no the FiX does not have the ability to correct or eliminate an all pass filter. It will do its best to correct the frequency response around it, but can not eliminate it. In some cases the FiX can over compensate for trying to correct the all pass and result in less than ideal calibration. You may need to not use a FiX and use outboard DSP to manually correct the signal or frequency response.
Eric Cole
Technical Support Specialist
Visit the JL Audio Website
Get more answers in the Help Center
Test drive TüN DSP Software for FREE
***
That is a surprisingly honest answer.
 

·
Registered
Joined
·
734 Posts
Discussion Starter #100
The d10 has landed, I was so excited to look up which RCA input doubled as a digital coaxial in... except that's not how it works and the dsp.3 doesn't accept coaxial digital signals. So an optical cable is on order! I'm not sure if the writing is on the walls or not: for the cost of software to properly tune the Helix I can purchase a Dirac dsp. I was smart enough to cover the entire Helix in painters tape before installing it, so I've got that going for me.

Still slowly improving my tuning skills. I must have created 7 different tunes each with 10 different versions, but I kept going back to a select few. Tunes with wild 5-10db swings in response sounded so much better, more inviting, more musical, less 'noisy'. Some allpass filters make such a big difference. But you can't allpass away bad install, and I'm finally feeling the need to finish the doors.

The left door is only treated with CLD on the outside skin and CLD is 'sealing' the holes on the inner skin. The right door has CLD and 'fiberglass' stuck to the outer door skin, but the inner skin is completely barren and only the door card is blocking the rear wave. Not surprisingly the left door has a smoother response, especially around 150 where it only suffers a small dip. The right door SOUNDS way better and is far more musical, but it has a wide crater in the center of it's response around 150.

I'll spare you the graphs until I can post them all side by side. Why am I posting such a worthless update? Well, it's like announcing your diet to your friends.

My DCCD controller came apart easily. The knob isn't designed to rotate freely but with a little epoxy I should be able to create a smooth landing for the interface between the knob and the mount. From there a little more epoxy to stick my URC.3 to the giant knob and I might just be one happy Opekone.

Maybe this weekend will be the weekend that I craigslist all that's in my storage locker and bring that tent home...
 
81 - 100 of 118 Posts
Top