Hifi Shield on C1+

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Hifi Shield on C1+

Unread postby IET_DEMO » Sat Feb 18, 2017 1:08 am

Hi guys,

I've heard on the forum that the hifi shield is now working on the C1+

Can we know which version of the Hifi shield is actually officially working on the C1+.

It would be nice if you guys change the advertise on the Hifi-shield page to let know users it is now working
with C1+ on the respective pages of the Hifi Shield,Hifi shield plus and Hifi shield 2.

Thanks
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Re: Hifi Shield on C1+

Unread postby odroid » Sat Feb 18, 2017 11:34 am

HiFi Shield Plus and HiFi Shield 2 should work with C1+ Linux (not Android)
http://www.hardkernel.com/main/products ... 6355616215
http://www.hardkernel.com/main/products ... 7589529288
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Re: Hifi Shield on C1+

Unread postby IET_DEMO » Mon Feb 20, 2017 10:53 pm

Well i wouls like some explanations about this discussion which you reply it is now working on ANDROID, of course i'm speaking about working on android here?

viewtopic.php?f=137&t=25763&p=178276&hilit=hifi+android#p178276

Is it only working on C2?

thanks
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Re: Hifi Shield on C1+

Unread postby odroid » Tue Feb 21, 2017 3:06 pm

We will check the feasibility on C1 Android.
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Re: Hifi Shield on C1+

Unread postby IET_DEMO » Thu Feb 23, 2017 6:34 am

Cool,

I am looking to pass an order soon, so i would like to know which hifi shield is more susceptible to work on C1+.
I will start some test on a C2 at my warehouse to know how it sounds on Android.

Are you guys going to take a look at the C1 soon?

Thanks
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Re: Hifi Shield on C1+

Unread postby odroid » Thu Feb 23, 2017 1:35 pm

New C1 Android image with I2S driver will be released March 6 or 7.
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Re: Hifi Shield on C1+

Unread postby IET_DEMO » Fri Feb 24, 2017 1:13 am

Cool,

Which Hifi-Shield will work on th C1+?

And what is the main difference between both?

Thanks
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Re: Hifi Shield on C1+

Unread postby odroid » Fri Feb 24, 2017 11:41 am

Both will work.
HiFi Shield 2 has better dynamic range(or SNR) and analog volume control feature.
But the HiFi Shield Plus is much more worth on Android since Android audio framework doesn't support the hardware analog volume control.
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Re: Hifi Shield on C1+

Unread postby IET_DEMO » Mon Feb 27, 2017 11:54 pm

Cool,

Thanks a lot for the extra explanations, it's very appreciated.

I Will order the Hifi Shield plus later on this week.
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Re: Hifi Shield on C1+

Unread postby rooted » Tue Feb 28, 2017 2:15 am

odroid wrote:Both will work.
HiFi Shield 2 has better dynamic range(or SNR) and analog volume control feature.
But the HiFi Shield Plus is much more worth on Android since Android audio framework doesn't support the hardware analog volume control.


Are the analog audio out still reversed on the HiFi Shield 2?

This could be fixed in the DSP @odroid, I don't have access to the Ti software or any experience with it.
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Re: Hifi Shield on C1+

Unread postby odroid » Tue Feb 28, 2017 11:18 am

Right. We still have many inventories and it will not be changed in this year probably.
Android AudioFlinger framework is too much complicated and we can't modify it to add the DSP/HW volume control I2C driver.
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Re: Hifi Shield on C1+

Unread postby rooted » Tue Feb 28, 2017 10:50 pm

When I say DSP I mean you can create and upload miniDSP blocks to the Ti chip using PurePath Studio, it should be trivial to create a DSP block that reverses output but I'm not sure if this can be done only for analog outs or if it would be device (SPDIF inclusive) wide.

http://www.ti.com/tool/AICPUREPATH_STUDIO

I haven't investigated it much but I looked into it so I could add some equalization to the HiFi Shield 2.
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Re: Hifi Shield on C1+

Unread postby IET_DEMO » Wed Mar 08, 2017 6:59 am

odroid wrote:New C1 Android image with I2S driver will be released March 6 or 7.


Hi,

I'm not looking to rush you guys on this, just want to know if there is another release date for this? Because i don't see any version after december 2016.

Thank you
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Re: Hifi Shield on C1+

Unread postby codewalker » Wed Mar 08, 2017 11:26 am

Try lollipop version. I2S output was enabled by default.
http://odroid.com/dokuwiki/doku.php?id= ... 5.1.1_v1.4

IET_DEMO wrote:Cool,

I am looking to pass an order soon, so i would like to know which hifi shield is more susceptible to work on C1+.
I will start some test on a C2 at my warehouse to know how it sounds on Android.

Are you guys going to take a look at the C1 soon?

Thanks
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