Search found 131 matches

by livingston
Tue Dec 08, 2009 9:41 pm
Forum: FV-1 hardware questions
Topic: Addressing external memory?
Replies: 9
Views: 14264

Addressing external memory?

I'm fairly certain I know the answer to this, but is there any way to get the FV-1 to interface with external memory? Even kind of a kludge solution? By this I mean, not program memory but delay memory, to allow coding a looper, or any recorder requiring more than 2 seconds of delay (2 seconds of co...
by livingston
Mon Dec 07, 2009 9:16 pm
Forum: Algorithm development
Topic: Simple LP not assembling
Replies: 8
Views: 12977

So how can I code a 1-pole filter with pot control? I know about the 2- and 4-pole filters, but I need something less extreme in this case.
by livingston
Sun Dec 06, 2009 6:10 pm
Forum: Algorithm development
Topic: Simple LP not assembling
Replies: 8
Views: 12977

Simple LP not assembling

I'm trying to put a simple 1-pole LP filter at the beginning of an effect. I have this code: equ filtr reg7 ;lowpass filtered input equ ksh 1.0 ;shelf for lowpass equ klp reg10 ;frequency for lowpass equ blerg reg11 ;register for filter equ potf2 reg12 ;pot filter for filter ;setup pot1 to control f...
by livingston
Sat Dec 05, 2009 10:53 pm
Forum: FV-1 hardware questions
Topic: How do the switches correlate to program number?
Replies: 1
Views: 3996

How do the switches correlate to program number?

For some applications, it would be more useful to use SPST switches instead of a rotary for the program select. Is there a table anywhere that shows that, for example, S0 closed+S1 open+S2 open=program number 3?
by livingston
Sat Dec 05, 2009 10:49 pm
Forum: FV-1 hardware questions
Topic: What kind of rotary switch?
Replies: 10
Views: 24598

For future searchers, this was suggested at another forum. Looks like one of these will work.
by livingston
Fri Dec 04, 2009 7:10 pm
Forum: Algorithm development
Topic: Shimmer
Replies: 40
Views: 97915

I think the basic idea is to put the octave up in the feedback path somewhere, so that repeats get shifted higher and higher.

This is the basis of Line 6's "Octo" setting on the Verbzilla, as well as the string sounds on the Digitech Space Station.
by livingston
Tue Dec 01, 2009 3:20 pm
Forum: FV-1 hardware questions
Topic: Can the FV-1 output DC?
Replies: 1
Views: 4017

Can the FV-1 output DC?

In my question about adding more than 3 pots, Frank told me that the analog inputs cannot accept a DC voltage. But what about outputting one? Can the FV-1 be used to generate some complex control signals and output them as DC voltages?
by livingston
Tue Dec 01, 2009 3:17 pm
Forum: FV-1 hardware questions
Topic: What kind of rotary switch?
Replies: 10
Views: 24598

What kind of rotary switch?

What is the rotary switch called that's used to change presets? I'm looking for a through-hole version if possible. Obviously a usual 3P4T or similar will not work, but I don't know what this type of switch, which switches bits, is called. I'm not really looking for the part used in the development ...
by livingston
Tue Nov 17, 2009 1:43 am
Forum: Algorithm development
Topic: guitar input - pure sine and/or square output
Replies: 15
Views: 19643

I'm interested in this, too. Any more specific thoughts on how to detect and count zero crossings?
by livingston
Mon Nov 16, 2009 6:11 pm
Forum: FV-1 software questions
Topic: How similar is the FV-1 programming to other DSP work?
Replies: 1
Views: 5137

How similar is the FV-1 programming to other DSP work?

I'm going to buy the dev board and start learning to program the FV-1. After reading through the various datasheets and docs, it seems fairly doable, even to a complete DSP noob like me, which really excites me. What I'm wondering, though, is how this language compares to working with other DSPs. I ...
by livingston
Mon Nov 16, 2009 6:06 pm
Forum: FV-1 hardware questions
Topic: More than 3 pots possible?
Replies: 13
Views: 13237

More than 3 pots possible?

I was wondering if there's any way to kludge more than 3 pots into the FV-1? Seems like, at the very least, you could use one of the audio inputs to take a control voltage in, right? I wanted to make a sort of pitch shift arpeggiator, with a knob for each of the 8 steps of a sequencer, plus a speed ...