Power over Ethernet Speaker

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Andy
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Power over Ethernet Speaker

Postby Andy » Wed May 25, 2011 12:43 am

Version: 1
Status: Complete
License: BSD

The aim of this project was to transport both digital audio and power to a speaker using a single Ethernet cable. Transmitter/Receiver PCBs were designed and software written for the L1 64 pin device.


A lightweight software stack transmits audio from S/PDIF over Ethernet, recovers a clock at the receiver and outputs/amplifies the audio using a digital input Class D amplifier.


This project was submitted as a final year project on the MEng Computer Science & Electronics course at the University of Bristol.


Video:

Images:
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phalt
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Postby phalt » Wed May 25, 2011 9:09 am

Can we get some demo videos up so we can see it working? :D
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lilltroll
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Postby lilltroll » Thu May 26, 2011 12:58 am

Any more info about it, like a thesis, github etc ?
Probably not the most confused programmer anymore on the XCORE forum.
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infiniteimprobability
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Postby infiniteimprobability » Thu May 26, 2011 2:34 pm

This looks brilliant - I notice it's L1 based so really looking forward to seeing how you squeezed stuff in, which protocols you are using, general specs etc. etc.
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phalt
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Postby phalt » Wed Jun 29, 2011 3:30 pm

Do you have something you could upload for us to download and play with? Its something that could be really helpful to the community.
xk2600
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Postby xk2600 » Mon Oct 07, 2013 10:00 pm

So does this device actually transmit the audio via Framed Ethernet Protocol (DIX/802.3) or is this simply utilizing Cat5/6 8-conductor twisted pair to transmit the signal as well as power to a speaker?


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Andy
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Postby Andy » Tue Oct 08, 2013 7:31 pm

Yes, it transmits audio via standard Ethernet packets. It's not transmitting analog audio across Cat5.


emonticelli
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Postby emonticelli » Sat Jan 23, 2016 11:07 pm

Hi Andy,


 


Great project !


Is AVB compliant ?


If not, are you working on an AVB version ?


Bye


Emanuel


 



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