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 Post subject: Advice on sound output.
PostPosted: Fri Oct 28, 2016 8:12 pm 
Joined: Thu Sep 22, 2016 12:24 am
Posts: 57
What is the most cost effective route for decent car audio? HDMI Extractor -> Amp, DAC Hat -> Amp (or one that includes an amp), or USB sound Card -> Amp? Has to work with the mausberry, so can't use all the GPIO pins.

Running on an RPi3 with a dual output 3A Mausberry Car Switch


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 Post subject: Re: Advice on sound output.
PostPosted: Wed Nov 23, 2016 9:01 am 
Joined: Sat Nov 19, 2016 1:36 pm
Posts: 7
arusia wrote:
What is the most cost effective route for decent car audio? HDMI Extractor -> Amp, DAC Hat -> Amp (or one that includes an amp), or USB sound Card -> Amp? Has to work with the mausberry, so can't use all the GPIO pins.

Running on an RPi3 with a dual output 3A Mausberry Car Switch


Hi did you found a solution to this?

I am currently researching a similiar solution. I have started to build a Car PC / Entertainment system using a Pi 3 and an official 7 inch touchsreen. I too have the Mausberry (not yet connected).

I am now looking for audio output solutions. I was hoping to use my existing In Car Radio but it does not have any audio inputs. I have also been looking at separate amps, initially at some cheap ones on Amazon (around £20 - £30) most have mains adaptors but have a 12v input. Not sure if they would be beefy enough. I have also looked at some of the bespoke RPi ones but again not sure if they are up to it?

I am not sure how many watts per channel I need though? Don't want to host my own festival from the car but I want it to be able to pump out at shows etc.

I


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 Post subject: Re: Advice on sound output.
PostPosted: Wed Nov 23, 2016 6:16 pm 
Joined: Fri May 22, 2015 8:46 pm
Posts: 330
Look at forum . Few days ago i helped a guy with this same question .


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 Post subject: Re: Advice on sound output.
PostPosted: Wed Nov 23, 2016 6:54 pm 
Joined: Sat Nov 19, 2016 1:36 pm
Posts: 7
Elias Alves wrote:
Look at forum . Few days ago i helped a guy with this same question .


Elias - is this the post that you are referring to?

http://engineeringdiy.freeforums.org/iso-10487-sound-connection-t707.html


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 Post subject: Re: Advice on sound output.
PostPosted: Thu Nov 24, 2016 11:46 am 
Joined: Fri May 22, 2015 8:46 pm
Posts: 330
Yes


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 Post subject: Re: Advice on sound output.
PostPosted: Sun Dec 04, 2016 2:13 am 
Joined: Sat Nov 12, 2016 6:03 pm
Posts: 10
I would also like to know the solution for good quality sound?
Is it possible to use a HiFiberry type DAC with CarPC? I read somewhere that I2C does not work with Kodi. I have searched this forum but not found anywhere a good solution that works.

I purchased a HDMI to HDMI + audio (RCA) converter on Ebay. But my monitor supports only DMT modes. When I enable HDMI audio the video is all messed up. It only happens when I send audio - such as play a youtube video. When the audio source finishes, the video returns to normal! I checked the EDID and the HDMI video extractor does nothing to manipulate this - my monitor says it does not support sound. The HDMI audio extractor appears to only be compatible with a monitor which supports HDMI. My 7" LCD I plan to use also supports only DMT modes with no audio and behaves exactly the same so appears I cannot use this HDMI audio extractor for carpc.

Please post if you have a good solution that is working.


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