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Type: Posts; User: mala96

1. Thread: Getting real and imaginary FFT data from AudioAnalyzeFFT1024

by mala96
Replies
11
Views
318

Thank you for your replies to my bemused post...

Thank you for your replies to my bemused post yesterday... sometimes my overeagerness is embarrassing, i was feeling very ashamed reading my own words again this morning, so thank you for not letting...
2. Thread: Getting real and imaginary FFT data from AudioAnalyzeFFT1024

by mala96
Replies
11
Views
318

I did indeed ask a few questions in this thread....

I did indeed ask a few questions in this thread. But i can summarize one main question for you if you want:

For a DFT/FFT i was assuming a formula like

" Σ 0,...,N-1 (output) = Σ 0,...,N-1...
3. Thread: Getting real and imaginary FFT data from AudioAnalyzeFFT1024

by mala96
Replies
11
Views
318

hey guys, be patient with me...but i aswell...

hey guys,

be patient with me...but i aswell don't get jack shit out of this FFT1024 algorithm. It's just written in such a blunt style and without any urge at any point to explain what it doest...
4. Thread: what resolution is possible (in theory) for a FFT?

by mala96
Replies
3
Views
213

what resolution is possible (in theory) for a FFT?

Hey guys,

analyzing the 1024 FFT code from the audio example codes the last couple of weeks I was wondering how high the resolution could possibly be for a fast fourier transformation? Or better:...
5. Thread: FFT on Teesy 4?

by mala96
Replies
25
Views
2,696

Thanks a lot Pete, I'll try to install the...

Thanks a lot Pete, I'll try to install the buttons and analyze the FFTs of the other Signals!

I'm not sure about that, because with && the value f0_new would need to be 5Hz higher than f0_old...
6. Thread: wav2sketch inside Teensyduino

by mala96
Replies
4
Views
202

Thanks for your answer manicksan! The...

Thanks for your answer manicksan!

The AudioPlaySdWav::consume(uint32_t size) function could really probably work, but i somehow can't really find the encoder segment? I thought it should look like...
7. Thread: wav2sketch inside Teensyduino

by mala96
Replies
4
Views
202

Guten Tag Frank, i want to write a discrete...

Guten Tag Frank,

i want to write a discrete fourier transformation in teensyduino. The idea is to send discrete values of an audio signal into that function, so i need to sample the .WAV file...
8. Thread: wav2sketch inside Teensyduino

by mala96
Replies
4
Views
202

wav2sketch inside Teensyduino

Hello dear forum members,

i was asking myself earlier today if it is possible to use the wav2sketch.c program "inside" teensyduino? What do I mean with that: Is it possible to use the wav2sketch...
9. Thread: FFT on Teesy 4?

by mala96
Replies
25
Views
2,696

Yes exactly, there isn't really one unique...

Yes exactly, there isn't really one unique recording of your voice which will always sound the same - there will be filtering-effects due to different recording sessions. I thought of something like...
10. Thread: FFT on Teesy 4?

by mala96
Replies
25
Views
2,696

Thanks for the advice, i will try that out! Did...

Thanks for the advice, i will try that out! Did you ever connect a microphone to one of your teensys / audio boards? Would be interested if you got any tips for a good little MIC and what to bear in...
11. Thread: FFT on Teesy 4?

by mala96
Replies
25
Views
2,696

Hello dear defragster / dear forum members, ...

Hello dear defragster / dear forum members,

I have a few questions regarding the FFT Example:

Above you said that audio input needs to be connected to pin 16...so does that mean that if I'm...
12. Thread: Voice Authentication with FFT

by mala96
Replies
5
Views
329

Guten Morgen Frank, i thought of using this...

Guten Morgen Frank,

i thought of using this device for example for my phone as an authentification.
With a FFT of my voice I should get a pretty unique fundamental with a overtone series. I...
13. Thread: Voice Authentication with FFT

by mala96
Replies
5
Views
329

Voice Authentication with FFT

Hello dear Forum members,

i have an idea for an algorithm i want to realize at an uni-project. And i would like to know what you guys think about it before starting.

I've seen a thread...
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