Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

DSP for the Raspberry Pi
DSP for the Raspberry Pi
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 10th February 2015, 02:32 PM   #31
ejaouen is offline ejaouen  France
diyAudio Member
 
Join Date: Jan 2007
It would be excellent to make another board a step higher with the ADAU1451 (or ADAU1450 or ADAU1452) which has a MUCH improved process wafer and efficiency...

digital only with a i2s input (and possibly a spdif input) and i2s outputs (and possibly also spdif outputs) .

(maybe also high quality DACs for all channels.)

thanks

Last edited by ejaouen; 10th February 2015 at 02:35 PM.
  Reply With Quote
Old 12th March 2015, 09:31 AM   #32
erotavlas is offline erotavlas
diyAudio Member
 
Join Date: Mar 2015
Hi everyone,
any news about this project?

I read that the new Raspberry Pi 2 CPU is based on architecture Cortex-A7 https://en.wikipedia.org/wiki/ARM_Cortex-A7 which supports the Neon SIMD extensions. What about the new performance on FFT? The GPU of Raspberry Pi 2 is the same of Raspberry Pi and as consequence it has the same performance on computing FFT http://www.raspberrypi.org/accelerating ... g-the-gpu/.
What about the DSP contained in the CPU Broadcom BCM2836 of Raspberry Pi 2?
Thank you
  Reply With Quote
Old 29th March 2015, 11:45 PM   #33
camelator is offline camelator  France
diyAudio Member
 
Join Date: Feb 2013
I have exactly the same think.
Maybe it could be interesting a linux distro with an audio server
And plugin for dsp....
I just ordered a raspberry pi 2 to see....
Another alternative may be stm32f4
  Reply With Quote
Old 7th July 2015, 08:26 AM   #34
Per is offline Per
diyAudio Member
 
Join Date: Aug 2001
Location: Herning, Denmark
Any news on this project?
  Reply With Quote
Old 6th August 2015, 11:28 AM   #35
Per is offline Per
diyAudio Member
 
Join Date: Aug 2001
Location: Herning, Denmark
bump
  Reply With Quote
Old 6th August 2015, 05:22 PM   #36
camelator is offline camelator  France
diyAudio Member
 
Join Date: Feb 2013
raspberry pi 2 looks faster,
unfortunately, not a lot of time to investigate
  Reply With Quote
Old 25th November 2015, 08:33 AM   #37
francolargo is offline francolargo  United States
diyAudio Member
 
Join Date: Mar 2007
Location: Twin Cities, MN
Quote:
Originally Posted by camelator View Post
I have exactly the same think.
Maybe it could be interesting a linux distro with an audio server
And plugin for dsp....
I just ordered a raspberry pi 2 to see....
Another alternative may be stm32f4
I just ran across this thread and offer the following For Your Information. Perhaps some of the ideas can be adapted to RPi.

I am working with BBB, which is being employed to render asynchronous music files using the native clock frequency. There exists a Linux distribution with a choice of players and I am using the BBB ARM processor for DSP. It is unreasonable to expect the ARM chips to execute a well optimized FIR-based crossover. Satisfactory IIR crossover filters exist and can be run in ALSA at frequencies up to 192kHz, adapting to the sample frequency of the file. The focus of this design is to avoid any resampling and results have been encouraging. A thread exists at: LADSPA filters for digital crossovers on the BBB

Best wishes!
  Reply With Quote
Old 25th November 2015, 09:32 AM   #38
camelator is offline camelator  France
diyAudio Member
 
Join Date: Feb 2013
Quote:
Originally Posted by francolargo View Post
I just ran across this thread and offer the following For Your Information. Perhaps some of the ideas can be adapted to RPi.

I am working with BBB, which is being employed to render asynchronous music files using the native clock frequency. There exists a Linux distribution with a choice of players and I am using the BBB ARM processor for DSP. It is unreasonable to expect the ARM chips to execute a well optimized FIR-based crossover. Satisfactory IIR crossover filters exist and can be run in ALSA at frequencies up to 192kHz, adapting to the sample frequency of the file. The focus of this design is to avoid any resampling and results have been encouraging. A thread exists at: LADSPA filters for digital crossovers on the BBB

Best wishes!
thx,
I'll have a look
  Reply With Quote
Old 25th November 2015, 10:25 AM   #39
mhelin is offline mhelin
diyAudio Member
 
Join Date: Apr 2003
Location: Tampere Finland Europe
Pitrsek is making 1452 board for RPi now, please follow the FreeDSP 2.0 thread here:

freeDSP V2.0 (ADAU1452) developement thread
  Reply With Quote
Old 30th August 2016, 08:29 AM   #40
AlesF is offline AlesF
diyAudio Member
 
Join Date: Aug 2016
I see now the forum and since I am very interested the ADC card, as sound converter, I would like further information about this DSP / ADC. Can I try one?
I hope someone answer me.
  Reply With Quote

Reply


DSP for the Raspberry PiHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
My DAC for the Raspberry Pi usul27 Digital Line Level 156 30th April 2017 12:10 AM
rdesktop, a killer application for raspberry pi counter culture Everything Else 3 7th February 2015 03:19 PM
Cheap USB- soundcard for raspberry pi knorst Digital Source 29 21st August 2013 06:13 AM
Raspberry Pi & accessories Nikitas Swap Meet 5 5th July 2013 12:47 PM
Raspberry Pi -A New DIY'ers Digital Hub? pinkmouse Digital Source 164 11th June 2013 10:21 PM


New To Site? Need Help?

All times are GMT. The time now is 06:33 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki