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Type: Posts; User: mala96

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

by mala96
Replies
11
Views
541

### 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
541

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
541

### 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
303

### 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
3,013

### 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
249

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
249

### 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
249

### 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
3,013

### 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
3,013

### 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
3,013

### 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
383

### 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
383

### 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.