Search found 7 matches

by DSPguy
Fri Nov 10, 2017 9:28 am
Forum: startKIT
Topic: Example Code for FIR
Replies: 2
Views: 14087

Example Code for FIR

Hello everybody, I am new to the field of DSP Processing and I'd like to implement a FIR Filter on the startKIT with the Audio Expansion Board. Does anyone have an example code which does an FIR Filter? I already calculated the coefficients for it but I am not a programmer so it would be great to se...
by DSPguy
Wed Apr 19, 2017 12:10 pm
Forum: Q&A
Topic: How to do DFT for convolution of Audiosignals
Replies: 10
Views: 10771

Re: How to do DFT for convolution of Audiosignals

Sorry for my late reply but I wasn't notified that someone has answered to this thread.

I'll try out your function and let you know if that works. And yes for now I just want to delay the incoming samples by 10 Samples to always have 10 samples in a buffer :)
by DSPguy
Fri Mar 31, 2017 10:14 am
Forum: Q&A
Topic: How to do DFT for convolution of Audiosignals
Replies: 10
Views: 10771

Re: How to do DFT for convolution of Audiosignals

Can nobody help me with this problem? I can't find the issue...
by DSPguy
Tue Mar 21, 2017 8:47 pm
Forum: Q&A
Topic: How to do DFT for convolution of Audiosignals
Replies: 10
Views: 10771

Re: How to do DFT for convolution of Audiosignals

Hey Guys! I've now tried my best to seperate the function of "delaying" by 10 Samples on another thread. Therefor I started again with AN00201 and removed the unnessacary stuff and replaced it with my routine. The application now only runs the I²C Task and communicates over a streaming cha...
by DSPguy
Wed Mar 15, 2017 10:50 am
Forum: Q&A
Topic: How to do DFT for convolution of Audiosignals
Replies: 10
Views: 10771

Re: How to do DFT for convolution of Audiosignals

Ok then I will try to put the Samplebuffer out of the I2S Handler routine.
My solution to this would be to create a streaming channel between the buffering task and the I2S Handler Task. I will find out if this is a solution to my problem and get back to you.

Thanks for your help guys!
by DSPguy
Sat Mar 11, 2017 2:45 pm
Forum: Q&A
Topic: How to do DFT for convolution of Audiosignals
Replies: 10
Views: 10771

Re: How to do DFT for convolution of Audiosignals

Hey Guys, thanks for your help! I've now taken a look at the over-lap-and-add algorithm because it seems to be the right choice for my project. I've now started to implement it but therefor I first need some basic stuff. As far as I understand it I need to collect a small ammount of samples to work ...
by DSPguy
Sat Mar 04, 2017 4:00 pm
Forum: Q&A
Topic: How to do DFT for convolution of Audiosignals
Replies: 10
Views: 10771

How to do DFT for convolution of Audiosignals

Hello everybody! I'm a totaly new to the XCore Processors in der terms of writing firmware for them. At the moment I got a StartKit with the AudioSlice to learn how to write code for it. My goal is to write a programm which convolutes an audiostream with a given impulse response with a lenght of 204...