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Old 14th January 2016, 08:45 AM   #1
freedsp is offline freedsp  Germany
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Join Date: Oct 2014
Location: Dresden
Default freeDSP main thread

This thread is a place for links to other threads that are related to the freeDSP project. Feel free to post with these links and a brief comment on what the thread discusses. Occasionally the moderators will consolidate them into fewer posts.

Please create individual threads (and link them from here) to connect with other people working with the freeDSP for discussion and to support each other. Please keep in mind that freeDSP is a spare-time project and not a commercial product. If you want to get a freeDSP you need to build it yourself (manufacture board, order parts, …) or organize centralized buying with other DIYers.

The freeDSP is a low-budget open-source digital signal processor family, which is published under a creative commons license. It allows the unrestricted use and modification of the modules. The applications range from active loudspeaker concepts and room equalization over advanced musical effect processors to car audio signal processing. We would be happy if you join us and improve or extend the project.

GitHub is used for file exchange. If you want to join the development team, just send us a private message with your ideas and your GitHub user name. Most freeDSP PCBs will be designed using KiCad. Some guidelines were defined to make future freeDSP development and extensions as compatible as possible. These layout guidelines can be found in the freeDSP-Wiki.

In the following you’ll find a summary of the current freeDSP plans:

green = sources tested and available,
black = work in progress,
gray = on the wish list

freeDSP motherboards:
freeDSP CLASSIC (ADAU1701 / 2 x In & 4 x Out Analog via RCA) freeDSP thread, SigmaStudio AutoEQ
freeDSP CLASSIC SMD (ADAU1701 / 2 x In & 4 x Out Analog via RCA)
freeDSP INSANITY (ADAU1452 / 4 x In & 4 Out Bal. Analog via Jack, alt. 8 In x 8 Out Unbal. / 1 x In & 1 x Out SPDIF via RCA & Toslink)

freeDSP compatible motherboards:
PiDSP (ADAU1450 / RasPi In + Out / 3 x I2S In + Out ) PiDSP thread

freeDSP programmer:
freeUSBi + EZ-USB

freeDSP IO expansions:
freeDSPx AES/SPDIF IN (1 x In AES/EBU via XLR / 1 x In SPDIF via RCA)
freeDSPx SPDIF IO (1 x In & 1 x Out SPDIF via RCA & Toslink)
freeDSPx BAL OUT x16 (16 x Bal. Out Analog via SUB-D)
freeDSPx ADAT IO x3 (3 x In & 3 x Out ADAT via Toslink - maybe even 4 IOs)
freeDSPx BAL IO x4 (4 x In & 4 x Out Balanced Analog via Jack, alt. 8 In x 8 Out Unbal.)
freeDSPx UNBAL IO x2 (2 x In & 2 x Out Analog via RCA)

freeDSPx PHONES AMP
freeDSPx AMP
freeDSPx HDMI IO
freeDSPx DOLBY/DTS/AC3 IO

Right now we still have freeUSBi kits and freeDSP classic kits available - please visit our website for more information.

Last edited by freedsp; 27th September 2016 at 05:38 PM. Reason: freeDSP & freeUSBi kits still available
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Old 29th June 2016, 08:56 PM   #2
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Join Date: Apr 2010
Location: Regensburg
Default Quick start Thread for 2-way crossover with FreeDSP

Hello FreeDSP friends,

if you need some help to have a first 2-way crossover design with FreeDSP (Classic) have a look to my thread. You find there also information how to include volume control (with buttons and IR control) and to prevent power on/off noise.

You find the link here:
http://www.diyaudio.com/forums/equip...p-classic.html

Have fun!
Walter
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Old 6th January 2017, 06:43 PM   #3
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Join Date: Jan 2017
Location: Utrecht
Default aes/spdif pcb and free USBi board's

Hi,

I ordered an aes/spdif board, but because transport was the major part of the costs, I ordered some more.
Please contact me if you're interested in the pcb. They are 9 euro each, send by standard post in Europe.
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