Search found 76 matches

by potul
Fri May 05, 2023 2:41 am
Forum: Algorithm development
Topic: Scales and Arpeggios
Replies: 1
Views: 5233

Re: Scales and Arpeggios

Hi Alex

cool code snippets. I don't have an FV1 board in the bench at the moment, so I haven't tested them, but I will as soon as I can.

Thanks for the code
by potul
Wed Jan 11, 2023 8:47 am
Forum: FV-1 hardware questions
Topic: I2C Messages Sent by Spin to EEProm
Replies: 6
Views: 14734

Re: I2C Messages Sent by Spin to EEProm

Hi, I am wondering if there is any documentation of the I2C messages sent by the FV-1 to the EEProm chip for program loading. Like a description of what messages are sent out and what the FV-1 expects to get back, as well as a timing diagram if possible. Please let me know, thanks! If you are inter...
by potul
Mon Sep 19, 2022 10:18 am
Forum: Algorithm development
Topic: Reverse engineering the auto-wah
Replies: 7
Views: 14562

Re: Reverse engineering the auto-wah

Now I'm intrigued.... when is the next chapter released?
by potul
Tue Nov 02, 2021 10:27 am
Forum: FV-1 software questions
Topic: Pseudo-stereo alghritm?
Replies: 13
Views: 25803

Re: Pseudo-stereo alghritm?

sebxx4 wrote: Tue Nov 02, 2021 9:43 am Okay, but what is "Width gain"?
Image
I assume it's just a gain stage that controls the depth of the pseudo stereo.
by potul
Mon Nov 01, 2021 11:43 pm
Forum: FV-1 software questions
Topic: Pseudo-stereo alghritm?
Replies: 13
Views: 25803

Re: Pseudo-stereo alghritm?

Find some Internet tutorial about filters and you will find what poles and zeros are.

If you use the Gerzon scheme in the same paper, you will only need 2 identical All-Pass filters.
by potul
Fri Oct 29, 2021 2:05 am
Forum: FV-1 software questions
Topic: Pseudo-stereo alghritm?
Replies: 13
Views: 25803

Re: Pseudo-stereo alghritm?

"sound like stereo" you mean stereo output to the L and R channels? It depends on the effect you are working on. But at the end, you need to create some differences between left and right channel. It can be adding a delay between both, having a different filter, some modulation between the...
by potul
Wed Oct 27, 2021 10:41 pm
Forum: FV-1 software questions
Topic: Pseudo-stereo alghritm?
Replies: 13
Views: 25803

Re: Pseudo-stereo alghritm?

Maybe let's start from the beginning because I'm not sure I understand what you need.

Do you have stereo input, whant to process it in mono, and then generate a stereo output again?
by potul
Wed Oct 20, 2021 1:44 am
Forum: FV-1 software questions
Topic: Pseudo-stereo alghritm?
Replies: 13
Views: 25803

Re: Pseudo-stereo alghritm?

What you describe is simply adding L and R channels. Nothing is going to be cleaner/simpler than this. If you are getting a loss of frequencies, the origin might be in your input signals. Maybe some comb filtering happening? Just guessing. You can try to increase the 0.5 to get more volume, but be c...
by potul
Thu Jul 08, 2021 7:18 am
Forum: FV-1 software questions
Topic: (1-k)*sample[addr]
Replies: 7
Views: 10820

Re: (1-k)*sample[addr]

Where do you see the (1-k)*sample[addr] piece of code? Not in the snippet you pasted.
by potul
Mon May 03, 2021 2:52 pm
Forum: FV-1 hardware questions
Topic: Latency in FV-1 hardware
Replies: 11
Views: 11240

Re: Latency in FV-1 hardware

Let me ask another fast question without making a new topic. FV-1 has delay of 1s @ 32768Hz and I need eg. 800ms, so i declare "mem delay 26214" (32767*0,8), but max delay is still 1s. I know, I can change delay time via pot, but I would like to limit delay space by software. Why is that?...
by potul
Thu Apr 15, 2021 7:44 am
Forum: Algorithm development
Topic: Pink Noise Algorithm For FV-1
Replies: 2
Views: 6325

Re: Pink Noise Algorithm For FV-1

Maybe you can use white noise and filtering to get the pink noise...
by potul
Thu Apr 15, 2021 7:34 am
Forum: Algorithm development
Topic: Pink Noise Algorithm For FV-1
Replies: 2
Views: 6325

Re: Pink Noise Algorithm For FV-1

There is a white noise pseudorandom generator code, but I don't recall any pink noise. Just search in the forum for pseudorandom
by potul
Fri Apr 09, 2021 2:51 am
Forum: FV-1 software questions
Topic: RMPA Instruction - confusion?
Replies: 8
Views: 9470

Re: RMPA Instruction - confusion?

The symbol 'delay_r' is a moving target on each execution that address is moved for each sample. So every execution you can simple read from the ADC and write to 'delay_r'. So whilst I agree with the comment and what it's doing I'm not 100% sure it's doing what the comment suggests. delay_r is the ...
by potul
Wed Nov 25, 2020 11:34 pm
Forum: FV-1 software questions
Topic: Stereo delay
Replies: 25
Views: 20974

Re: Stereo delay

I suppose square. Just look at the datasheet