Search found 65 matches
- Sun Apr 07, 2019 9:41 am
- Forum: Algorithm development
- Topic: Triangle wave from sin LFO
- Replies: 8
- Views: 10163
Re: Triangle wave from sin LFO
and this is my typical triangle LFO snippet. 6 lines, but you can use them as much LFOs as you need and use sine LFO for tail smearing and tempo may be from 1/32Hz to 16kHz ldax rate ; 0x100, for example rdax RRR3 , 1 ; drrr3+ rrr3 - counter and 0x3fFFff ; 0 .. 0.5 wrax RRR3 , 1 ; Sawtooth 0..0.5 so...
- Sun Apr 07, 2019 4:18 am
- Forum: Algorithm development
- Topic: Reducing the tremolo artefact from pitch shifting
- Replies: 9
- Views: 7495
Re: Reducing the tremolo artefact from pitch shifting
You may use compressor/normalizer to make audio more flat and write your own transposition snippet with custom fadein-fadeout on buffer boundaries. I tried once, 256 samples for both was enough. FV-1 uses fixed x-fade coefficients, but, AL3201 (afair) had about 8 types with different angles. If your...
- Sun Apr 07, 2019 4:04 am
- Forum: Algorithm development
- Topic: Triangle wave from sin LFO
- Replies: 8
- Views: 10163
Re: Triangle wave from sin LFO
Nice snippet thank you!
- Fri Mar 22, 2019 4:52 am
- Forum: FV-1 software questions
- Topic: Anyone succesfully programming the FV-1 on a mac?
- Replies: 11
- Views: 9402
Re: Anyone succesfully programming the FV-1 on a mac?
Oh, that's good, thanks!
- Fri Mar 22, 2019 4:45 am
- Forum: FV-1 software questions
- Topic: SPN file to Arduino
- Replies: 6
- Views: 9922
Re: SPN file to Arduino
download spinasm and compile
- Fri Mar 22, 2019 4:43 am
- Forum: FV-1 hardware questions
- Topic: FV-1 harsh ticking sound
- Replies: 8
- Views: 7007
Re: FV-1 harsh ticking sound
Oh, man, never buy fv-1 on aliexpress, they all defective.
Small bear electronics , banzai , etc , sell original ones for personal use
Small bear electronics , banzai , etc , sell original ones for personal use
- Fri Feb 22, 2019 3:27 am
- Forum: FV-1 software questions
- Topic: Anyone succesfully programming the FV-1 on a mac?
- Replies: 11
- Views: 9402
Re: Anyone succesfully programming the FV-1 on a mac?
1. You right. Shared folder between OS and VM is just for it. 2. You can use USB port pass-through in virtual box and pass it to VM directly to upload project to devboard. 1. I never had original devboard. USB port pass worked OK, my ST-Link (I use MCU memory as EEPROM) and USB-UART modules worked f...
- Tue Feb 19, 2019 1:49 pm
- Forum: FV-1 software questions
- Topic: Anyone succesfully programming the FV-1 on a mac?
- Replies: 11
- Views: 9402
Re: Anyone succesfully programming the FV-1 on a mac?
Not at all, greenstomp XP2 or XP3 would be enough. And spinasm with free programs , knowledge base and this forum. I mostly use FAR Manager as editor , it's more comfy to me, and spinasm for compile. For MacOS , imho is good way to use your favourite text editor (edit) + python compiler (compile) + ...
- Sat Feb 16, 2019 9:32 am
- Forum: FV-1 software questions
- Topic: Anyone succesfully programming the FV-1 on a mac?
- Replies: 11
- Views: 9402
Re: Anyone succesfully programming the FV-1 on a mac?
I am working on Mac with VirtualBoxVM , with Windows XP running (1Gb of RAM with no swap). On the forum was announce about alternate compilers, NDF wrote spin fv-1 compiler on python , but I never tryed it, because satisfied with spinasm, it hotkeys , etc. But for linux or mac, or alternative platfo...
- Thu Jan 31, 2019 6:37 am
- Forum: FV-1 software questions
- Topic: Can a triangle LFO be used in chorus?
- Replies: 8
- Views: 7973
Re: Can a triangle LFO be used in chorus?
Servo uses RMP to get precise data addressed by any address source. Triangle DDS can be used too. You may use RMP1 if RMP0 is used. Or write own DDS and do not use hardware RMPs. DDS LFO example is below. Pot_char - your rate pot, RRR = DDS register. ; some Astronaut-3 snippets or 0x600 ; [Scale] По...
- Wed Jan 30, 2019 2:37 pm
- Forum: FV-1 hardware questions
- Topic: Best gain for input buffer
- Replies: 5
- Views: 6245
Re: Best gain for input buffer
we tested several power schemes, they did't slow down noise significantly. And tried 4-th order LPF with 10kHz cut-off to output of the FV-1 to reduce noise. It's not helped too. For all in one chip without balanced input ADC FV-1 still sounds cool and it's still a classic , i think, we've never get...
- Tue Jan 29, 2019 11:55 am
- Forum: FV-1 hardware questions
- Topic: Best gain for input buffer
- Replies: 5
- Views: 6245
Re: Best gain for input buffer
x4 gain will add +2 significant bits and may cause troubles with active pickups and strong attack.
You also may try kind of "Dolby" method, HPF before ADC and LPF after DAC (as on Small Clone done) and divide digital and analog power/grounds.
Sample rate of 48kHz may reduce some noise too.
You also may try kind of "Dolby" method, HPF before ADC and LPF after DAC (as on Small Clone done) and divide digital and analog power/grounds.
Sample rate of 48kHz may reduce some noise too.
- Mon Jan 28, 2019 7:08 am
- Forum: FV-1 hardware questions
- Topic: SMD Crystal oscillator
- Replies: 6
- Views: 5106
Re: SMD Crystal oscillator
we tried several, they had problems with reliability and washing in ultrasonic bath, so we are using micro controller clock instead of crystals.
The bonus is variable sample rate. 48kHz, 22 kHz, etc
The bonus is variable sample rate. 48kHz, 22 kHz, etc
- Mon Jan 28, 2019 7:05 am
- Forum: FV-1 hardware questions
- Topic: New to forum, and two questions
- Replies: 5
- Views: 4388
Re: New to forum, and two questions
yes, usual binary code.
- Sun Jan 27, 2019 10:26 am
- Forum: FV-1 hardware questions
- Topic: New to forum, and two questions
- Replies: 5
- Views: 4388
Re: New to forum, and two questions
s0 = lowest bit
so , patch #1 = s0=1, s1=0, s2=0
so , patch #1 = s0=1, s1=0, s2=0