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DSP ing with Pi B

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Posted on December 25, 2016 at 16:45:48
mikee55
Audiophile

Posts: 443
Location: South UK
Joined: December 7, 2002



Hello and merry xmas.

I have a Pi B and a Behringer UCA202 soundcard and a small lcd touch screen. A mini 240 volt to 5 volt psu and with Raspbian jessie installed, and the whole thing installed inside an amplifier casing, I got a DSP for my Infinite Baffle sub woofer. I ran jack server and used Jack Rack ladspa plugin, 3 band parametric eq with lo and hi shelving. Worked a charm until I had a brown out that corrupted my SD card. I took so much to get it all up and running that I didn't make a backup iso of the sd!

Funny thing is, I'm constantly banging my head against a brick wall, every time I install Jack Rack! When I launch it, I just get the logo and nothing loads. I even tried doing it differently using Ecasound. Managed to pass audio from line in to line out, but couldn't figure how to build the filters.
Has anyone got an idea on how I can get either to work? Please let me know

Mike
"Yeah, but it was fused!"

 

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RE: DSP ing with Pi B, posted on December 25, 2016 at 16:58:59
bullethead
Audiophile

Posts: 8012
Location: East Coast USA
Joined: May 6, 2012
Contributor
  Since:
December 0, 0000
How would I make a backup of the microsd card with a Mac? This sounds frightening. I just spent many hours getting my Pi setup the way I want it.

 

RE: DSP ing with Pi B, posted on December 25, 2016 at 23:46:05
AbeCollins
Audiophile

Posts: 28623
Location: USA
Joined: June 22, 2001
Contributor
  Since:
February 2, 2002

How would I make a backup of the microsd card with a Mac?

The UNIX dd command comes to mind.

 

RE: DSP ing with Pi B, posted on December 26, 2016 at 01:15:29
soundchekk
Audiophile

Posts: 1904
Joined: July 11, 2007
Show devices:

fdisk -l

Backup:

dd if=/dev/sdX of=myimage.img bs=1M

Restore:

dd of=/dev/sdX if=myimage.img bs=1M


I've done it >1000 times.

 

still using the same SD card?, posted on December 26, 2016 at 06:15:07
bullethead
Audiophile

Posts: 8012
Location: East Coast USA
Joined: May 6, 2012
Contributor
  Since:
December 0, 0000
I can only comment by a guess, if you are still using the same SD card even though reformatted it might still be bad, or worse you have a new one that is bad in the same spot in the memory as Jack Rack?

 

RE: still using the same SD card?, posted on December 29, 2016 at 10:13:54
mikee55
Audiophile

Posts: 443
Location: South UK
Joined: December 7, 2002
Hi, no I used a new sd card. The old one was corrupted. Gparted couldnt fix it, or my phone!
Thanks
"Yeah, but it was fused!"

 

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