Development Board for Realtime Audio DSP

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thegrinch
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#1
Posted by thegrinch: Mon. Nov 13, 2017 - 01:41 AM
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Hi, I am looking for a development board for DSP on a realtime analog audio signal. My requirements are as follows:

 

-Onboard audio codec with stereo input and output, with example projects for setting up audio callback

-Access either to on chip ADC pins, or on chip SPI interface (for use with MCP3208), via header for reading potentiometer values

-Access to on chip GPIOs via header, for reading switch values

-At least 128kb of on chip RAM, 256kb or more is preferable. 

 

Is there anything y'all can recommend which fits these requirements?

Tags:

Tools, Evaluation and Development Kits (AVR-related), PJRC
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Kartman
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Posted by Kartman: Mon. Nov 13, 2017 - 01:46 AM
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Raspberry pi with $3 usb audio dongle?

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thegrinch
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Posted by thegrinch: Mon. Nov 13, 2017 - 01:54 AM (Reply to #2)
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Kartman wrote:

Raspberry pi with $3 usb audio dongle?

 

The Raspberry Pi is something I have worked with quite a bit, but it is not suitable to my purposes here. To clarify my goals a bit, I am a DSP engineer working on the design of audio effects for guitar pedals, amplifiers and synthesizers. I am looking for something I can turn into a commercial product, and the Raspberry Pi simply comes with too many issues in terms of current draw, boot time, size etc.

 

 

Last Edited: Mon. Nov 13, 2017 - 01:55 AM
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gchapman
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Posted by gchapman: Mon. Nov 13, 2017 - 02:24 AM (Reply to #3)
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thegrinch wrote:
... the design of audio effects for guitar pedals, ...

PJRC

PJRC

TGA Pro : Guitar Audio Shield

https://www.pjrc.com/tga-pro-guitar-audio-shield/

...

This shield makes it very easy for musicians to add effects while playing guitar.

...

via the blog at https://www.pjrc.com/

and the tail of this thread

https://www.avrfreaks.net/forum/21st-century-audio-dsp-hearing-impaired?page=all by smileymicros

 

"Dare to be naïve." - Buckminster Fuller

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thegrinch
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Posted by thegrinch: Mon. Nov 13, 2017 - 02:52 AM (Reply to #4)
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Thanks! That looks like a great platform. I had not worked with Teensy's since the 2.0. I'm super impressed that they've gotten so powerful.

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