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Search DSP for crossover and correction - HDMI input, 8 channels output, FIR support
Search DSP for crossover and correction - HDMI input, 8 channels output, FIR support
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Old 16th July 2018, 02:59 PM   #1
gug42 is offline gug42
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Join Date: Jul 2017
Default Search DSP for crossover and correction - HDMI input, 8 channels output, FIR support

Hello Evryone,

I'm working on my new systems based on a pair of three ways loudspeaker and active crossover.

There is one big issue that I have no idea how to resolve it : how to do the DSP stuff. I hope you could help me !

So my needs, usage and constraints are :
- Use the same column loudpseaker for music and movies. Left and right channels.
- For movie, a central loudspeaker is needed/appreciate
- All my sources are digital : flac, tidal, spotify, netflix, BD.
- For now, all my devices use HDMI output and can output LPCM multi-channel
- FIR correction and crossover by ouput channel.
- Analog output is needed for my amps
- Central master volume is needed (remote or with a big button)

Idealy a boxes with multiple hdmi input, hdmi video output, 8 outputs, FIIR support ....

Too bad that the minidsp OpenDRC DA8 doesn-t have hdmi multichannel input. Too bad that the minidsp nanoavr HDA doesn't do FIR ....

Perhaps I could found a box that take hdmi input, extract the central voices, and the left/right channel, send the left/righ to optical output, and the central to an amp ? Perhaps with stuff like this : https://octavainc.com/hdmi-switch-hdmxa71-ip/ ?

Can you help me to do it of find it ? My soldering iron is still hot

Thank you in advance !

Last edited by gug42; 16th July 2018 at 03:55 PM.
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Old Today, 10:26 AM   #2
Loafmeat is offline Loafmeat  Germany
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Join Date: Jul 2015
Digital crossover for free

Take a look here

X-over realized by Laptop, Open Source and 7.1 AV Receiver over Display Port / HDMI

https://1drv.ms/b/s!AnKX4vLSHn4Nh5ty6YD-Ge9iJbJ8qA

Regards
Guenter
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Old Today, 12:18 PM   #3
gug42 is offline gug42
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Join Date: Jul 2017
Great ! Thank you
A minute ago before pulling the trigger for the nanoAVR HDA - no FIR sadly -.
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Old Today, 01:44 PM   #4
gug42 is offline gug42
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Join Date: Jul 2017
Hum sadly hard to find a sound card with HDMI input and video pass-through .

If you know some ?

Regards,
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