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Roland GI-10 vs Axon AX100

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Jarl Sigurd

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Feb 1, 2001, 3:30:25 PM2/1/01
to
Fatar wrote:
>
> JARL GETS A GIRLFRIEND, LEAVES US ALONE!!
>
> and
>
> JARL IS A FOOL, NOT A MIDIOT
>
> and
>
> THE LAST TIME YOU STOPPED TAKING YOUR MEDICATION!
>
> You know next to nothing about the subjects you post on. Leave us alone.
>
> Sean
> Sean P. O'Connor
> MIDI Product Manager, USA
> Music Industries Corporation
> se...@musicindustries.com

Shouldn't you be off trying to develope a MIDI interface
that actually works better than the Roland GI-10 rather
than one that simply costs more. You know what they say
about people who live in glass houses.

Jarl Sigurd

to listen to music recorded on a Roland GI-10
visit: http://www.mp3.com/JarlSigurd


Tom Plunket

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Feb 1, 2001, 6:15:32 PM2/1/01
to
Jarl Sigurd wrote:

> Fatar wrote:

Jarl, why would you crosspost this into alt.guitar? It didn't
start here... You think you're adding something that the
alt.guitar players need to know?

> Shouldn't you be off trying to develope a MIDI interface
> that actually works better than the Roland GI-10 rather
> than one that simply costs more. You know what they say
> about people who live in glass houses.

FWIW, the Axon works much better than the GI-10, but someone
using only a single-string-at-a-time interface wouldn't know
about that, eh?

-tom!

--
Happiness is one solid hunk of mahogany.
http://www.fancy.org/music/time/
email if you have a Time guitar for sale!

Tunes made with this fine device:
http://www.mp3.com/ticktock

Jarl Sigurd

unread,
Feb 2, 2001, 7:28:34 AM2/2/01
to

Tom Plunket wrote
>
>Jarl, why would you crosspost this into alt.guitar? It didn't
>start here... You think you're adding something that the
>alt.guitar players need to know?

The Roland GI-10 and the Axon AX-100 are both GUITAR
to MIDI interfaces. Certainly any discussion of their comparative
merits would be of interest to any guitarists thinking of getting
into MIDI guitar. Personally I was considering getting an Axon
AX100. I have since decided against it, partly because of
the high price, partly because I'm happy with the way the much
less expensive Roland GI-10 works, partly because of negative
comments I've heard about Axon in newsgroup discussions like
this one, partly because Chris Sherwood uses one, but mostly
because I don't like Sean P. O'Connor who is associated with
Axon. Sean's recent remarks about me have just lost Axon
a potential customer. Perhaps a clear comparison between Axon
and Roland will lose Axon a couple more. I've succeeded in making
the Roland GI-10 work for me. It has enabled me to perform and
record orchestral music on guitar. I would welcome hearing
any clips from Axon users demonstrating what they've been able
to do on MIDI guitar using an Axon as a MIDI interface.

Jarl Sigurd

to listen to music recorded using a Roland GI-10
visit: http://www.mp3.com/JarlSigurd


Jarl Sigurd

unread,
Feb 2, 2001, 7:51:24 AM2/2/01
to

Tom Plunket wrote

>
>FWIW, the Axon works much better than the GI-10, but someone
>using only a single-string-at-a-time interface wouldn't know
>about that, eh?

FWIW, the Axon costs a lot more than the GI-10. These days
you could buy a new computer or a guitar for the price difference.
Is the Axon really that much better? I'm primarily a MIDI guitarist
and not just a dabbler like many of the other players that use MIDI.
The Roland GI-10 works fine for the stuff I'm doing. Why spend the
extra money on the Axon? The Axon may have more features but
are those features really necessary for producing good music using
MIDI guitar? I'm sure we could name a lot of amps that have more
features than a Marshall Plexi or guitars that have more features than
a Les Paul or Strat. But for some reasons, players seem to gravitate
back to these simpler models.

Jarl Sigurd

to listen to musuc recorded using a Roland GI-10
visit: http://www.mp3.com/JarlSigurd

song...@my-deja.com

unread,
Feb 2, 2001, 11:30:42 AM2/2/01
to
In article <UxAe6.9005$Oe.4...@tor-nn1.netcom.ca>,

"Jarl Sigurd" <jarls...@geocities.com> wrote:
>
> The Roland GI-10 and the Axon AX-100 are both GUITAR
> to MIDI interfaces. Certainly any discussion of their comparative
> merits would be of interest to any guitarists thinking of getting
> into MIDI guitar. Personally I was considering getting an Axon
> AX100. I have since decided against it,
>[SNIP of derogatory comments about individuals with whom he has a
gripe]
> Jarl Sigurd
>

Jarl is buying a Roland? Guess it's time to call my Axon dealer!

Songuitar
--
Why are you reading this? The message is over.


Sent via Deja.com
http://www.deja.com/

Tom Plunket

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Feb 2, 2001, 1:25:35 PM2/2/01
to
> >Jarl, why would you crosspost this into alt.guitar? It didn't
> >start here... You think you're adding something that the
> >alt.guitar players need to know?
>
> The Roland GI-10 and the Axon AX-100 are both GUITAR
> to MIDI interfaces.

Yeah, but it was a huge post that was only trying to defame the
character of another person. Certainly that has no business in
an objective analysis of ANY device...

Besides that, anyone doing any research would realize that a "US"
person wouldn't have anything to do with the development of a
GERMAN piece of hardware.

Tom Plunket

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Feb 2, 2001, 1:35:45 PM2/2/01
to
Jarl Sigurd wrote:

> FWIW, the Axon costs a lot more than the GI-10. These days
> you could buy a new computer or a guitar for the price difference.
> Is the Axon really that much better?

Hmm, I got my Axon for right around $1000 US including the
pickup. Just bought a new computer for that price too; am I
hearing that the GI-10 is free? Can't find it on zzounds.

> I'm primarily a MIDI guitarist and not just a dabbler like many
> of the other players that use MIDI.

Sure, if you have the features that you want, then that's fine.
As your analogy- people buy gear with features. Some people
don't want them, don't need them, and don't get them...
Features, however, can add value, and in the hands of someone who
knows what they're doing, the features can add meaning and worth
to the presentation, as well.

> The Roland GI-10 works fine for the stuff I'm doing. Why spend the
> extra money on the Axon? The Axon may have more features but
> are those features really necessary for producing good music using
> MIDI guitar?

For me, they are invaluable. For instance, having my Axon set up
so that I can send continuous controller messages to my effects
to process my "raw" guitar sound, not even driving a synthesizer.
Or, doing any number of fun things with my fancy-pants
synthesizer, and doing it with CCs and chords and everything!

Again, if you're content with layering, and you either don't use
CCs or don't mind putting them in after the fact, then by all
means don't waste your money. I'm playing live and can't fiddle
around with doing those things...

> I'm sure we could name a lot of amps that have more features
> than a Marshall Plexi or guitars that have more features than
> a Les Paul or Strat.

1) Les Paul has two pickups, a Strat has three. Why all the
extra (and useless to the MIDI guitarist) features?

2) Why have seperate Low, Mid, Hi tone controls? Just excess
features beyond the simple "Tone" knob.

Who gets to decide what "excess" is? Who gets decide when the
"feature count" is appropriate?

Sonic VI

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Feb 2, 2001, 2:16:03 PM2/2/01
to
>Jarl is buying a Roland? Guess it's time to call my Axon dealer!
>

If I were Roland I'd sue him for defamation of character.


Daniel.

Craig Ramseur

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Feb 2, 2001, 5:02:40 PM2/2/01
to
to...@fancy.org (Tom Plunket) wrote in
<muul7t8r79cviju45...@4ax.com>:

>Jarl Sigurd wrote:
>
>> FWIW, the Axon costs a lot more than the GI-10. These days
>> you could buy a new computer or a guitar for the price difference.
>> Is the Axon really that much better?
>
>Hmm, I got my Axon for right around $1000 US including the
>pickup. Just bought a new computer for that price too; am I
>hearing that the GI-10 is free? Can't find it on zzounds.

Ha, ha Mr. Funny-Man. The Roland GI-10 is not in current production. I
got mine used for about $250. Lessee...that would leave $750. Certainly
enough for a new guitar, or a new computer here in NYC.


-------------------------------------------------------
Craig Ramseur, cr...@panix.com
listen at:
http://www.mp3.com/Cramseur
-------------------------------------------------------

future perfect

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Feb 2, 2001, 5:57:12 PM2/2/01
to
I like my GI-10. I decided against the Axon because of the very high price,
and the fact that it is almost impossible to find in a store to check out-
you have to mail order it. Also, I have no idea if Axons are reliable, or if
something goes wrong, the lengths I have to go thru to get it fixed.

Dave Eichenberger- guitars.loops.devices
http://www.hazardfactor.com

Jarl Sigurd

unread,
Feb 2, 2001, 9:11:01 PM2/2/01
to
future perfect wrote:
>
> I like my GI-10. I decided against the Axon because of the very high price,
> and the fact that it is almost impossible to find in a store to check out-
> you have to mail order it. Also, I have no idea if Axons are reliable, or if
> something goes wrong, the lengths I have to go thru to get it fixed.

That's the complaint I heard about the Axon, when I inquired about
them, i.e. that it takes a long time to get them serviced. They
have to be sent back to Germany or something like that. Can
anyone elaborate on this.

Not A Speck Of Cereal

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Feb 2, 2001, 11:33:52 PM2/2/01
to
So Jarl Sigurd <jarls...@geocities.com> wuz saying::
[...]
[] That's the complaint I heard about the Axon, when I inquired about
[] them, i.e. that it takes a long time to get them serviced. They
[] have to be sent back to Germany or something like that. Can
[] anyone elaborate on this.

Depends, what country are you in? I know for a fact that there are
several authorized service centers in the US.


--
"You haven't lived until you've sucked brown liquor
from the spit valve on a real man's tuba, bro."
-- Stevie Dan Stanley
Remove X's from my email address above to reply
[These opinions are personal views only and only my personal views]

Not A Speck Of Cereal

unread,
Feb 2, 2001, 11:35:46 PM2/2/01
to
So "Jarl Sigurd" <jarls...@geocities.com> wuz saying::
[] The Roland GI-10 works fine for the stuff I'm doing. Why spend the
[] extra money on the Axon?

I can state with some surety that you would not benefit from the
advantages that the Axon has over the Roland.

Chris

Not A Speck Of Cereal

unread,
Feb 2, 2001, 11:37:29 PM2/2/01
to
So cr...@panix.com (Craig Ramseur) wuz saying::
[]
[] Ha, ha Mr. Funny-Man. The Roland GI-10 is not in current production. I
[] got mine used for about $250. Lessee...that would leave $750. Certainly
[] enough for a new guitar, or a new computer here in NYC.

As an Axon owner, I think that the GI-10 is a fine unit, especially
for the money. There's nothing wrong with it. If you want the faster
tracking and extra functionality of the Axon, and you can afford it,
there's nothing wrong with that either.

Jarl Sigurd

unread,
Feb 4, 2001, 6:56:41 AM2/4/01
to

Not A Speck Of Cereal wrote

>So "Jarl Sigurd" <jarls...@geocities.com> wuz saying::
>[] The Roland GI-10 works fine for the stuff I'm doing. Why spend the
>[] extra money on the Axon?
>
>I can state with some surety that you would not benefit from the
>advantages that the Axon has over the Roland.


Speaking of which, Chris, when will we ever get to hear some
examples of how you benefit from the advantages of the Axon?
After all, us basic guys that only compose symphonies would
like to hear what you advanced guys who play more complex
stuff are doing. What kind of music do you play, anyway,
Chris? You do actually play, don't you?

Jarl Sigurd

to listen to basic simple music that Jarl Sigurd
performs visit: http://www.mp3.com/JarlSigurd

Tom Plunket

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Feb 4, 2001, 8:44:00 PM2/4/01
to
future perfect wrote:

> I like my GI-10. I decided against the Axon because of the very
> high price, and the fact that it is almost impossible to find in
> a store to check out-

One related thing is that it is terrible until you play it for a
while. They have a "learning algorithm" on board that learns how
you play, what you sound like, etc. The first six hours or so
that I had mine it was terrible, I was thinking, "wtf have I
done?" The next day it was way better, and now it's simply
amazing the way it tracks.

Remember- the Axon is the only MIDI interface that doesn't have
to wait a full cycle to determine the pitch of the note. That
means that by default it is the fastest MIDI converter on the
market, and this was a VERY important consideration for me.

> Also, I have no idea if Axons are reliable, or if something goes
> wrong, the lengths I have to go thru to get it fixed.

Never heard of any problems, but every piece of German hardware
that I have has service centers in the US.

Tom Plunket

unread,
Feb 4, 2001, 8:44:01 PM2/4/01
to
> >[] The Roland GI-10 works fine for the stuff I'm doing. Why spend the
> >[] extra money on the Axon?
> >
> >I can state with some surety that you would not benefit from the
> >advantages that the Axon has over the Roland.
>
> Speaking of which, Chris, when will we ever get to hear some
> examples of how you benefit from the advantages of the Axon?

What he was saying is that your refusal to use a "proper" pickup
means that any of the "advanced features" would be lost on you.

Jarl Sigurd

unread,
Feb 4, 2001, 10:06:59 PM2/4/01
to
Tom Plunket wrote:
>
> > >[] The Roland GI-10 works fine for the stuff I'm doing. Why spend the
> > >[] extra money on the Axon?
> > >
> > >I can state with some surety that you would not benefit from the
> > >advantages that the Axon has over the Roland.
> >
> > Speaking of which, Chris, when will we ever get to hear some
> > examples of how you benefit from the advantages of the Axon?
>
> What he was saying is that your refusal to use a "proper" pickup
> means that any of the "advanced features" would be lost on you.

Regardless of what he's saying, it would be nice to finally have
Chris backup his "expertise" with some clips to show he actually
knows how to use the gear he is constantly pontificating about.

Jarl Sigurd

to listen to a MIDI guitarist who isn't afraid to
post clips, visit: http://www.mp3.com/JarlSigurd


Not A Speck Of Cereal

unread,
Feb 5, 2001, 2:22:39 AM2/5/01
to
So Tom Plunket <to...@fancy.org> wuz saying::
[...]
[] Remember- the Axon is the only MIDI interface that doesn't have

[] to wait a full cycle to determine the pitch of the note. That
[] means that by default it is the fastest MIDI converter on the
[] market, and this was a VERY important consideration for me.

I'm not saying your wrong--and I know for a fact that it's the fastest
tracker on the planet (I have one)--but I'm not convinced about the
claim that they can detect pitch without a full cycle. I think that
what they're really trying to say (but allow marketing folk to trump
up their words a little more) is that the technology they use (I won't
use the marketing term they use, initials of n.n., because Andrew will
be all over me ;^) is there to detect the attack transient. I don't
think this gives them pitch so much as it gives them position (what's
required for fret, string and pickup splits). But-I-mean-come-on-now,
how can you detect pitch if you don't let at least one cycle go by?

But I don't really know for sure.

[] > Also, I have no idea if Axons are reliable, or if something goes


[] > wrong, the lengths I have to go thru to get it fixed.

Quite reliable, and unlike Roland, they've rolled out more than one
ROM revision for their unit.

[] Never heard of any problems, but every piece of German hardware


[] that I have has service centers in the US.

I know from experience they do have authorized service in the US and
other world sites besides Germany (I was going to have such a center
upgrade my unit, but ended up doing it myself). If you own a AX100 and
have one of the earlier ROM revisions, you should definitely
upgrade--the new ROM is much improved!

Chris

Not A Speck Of Cereal

unread,
Feb 5, 2001, 2:25:46 AM2/5/01
to
So Tom Plunket <to...@fancy.org> wuz saying::
[] > >[] The Roland GI-10 works fine for the stuff I'm doing. Why spend the
[] > >[] extra money on the Axon?
[] > >
[] > >I can state with some surety that you would not benefit from the
[] > >advantages that the Axon has over the Roland.
[] >
[] > Speaking of which, Chris, when will we ever get to hear some
[] > examples of how you benefit from the advantages of the Axon?

What's this "we" shit? Does anyone here besides Garl require a clip
from me to give merit to my words? I mean, besides those that have
already heard me play live.

[] What he was saying is that your refusal to use a "proper" pickup


[] means that any of the "advanced features" would be lost on you.

Quite so.

Jarl Sigurd

unread,
Feb 5, 2001, 4:40:33 AM2/5/01
to

Not A Speck Of Cereal wrote

>But I don't really know for sure.

Very good, Chris, facing up to reality is the first step
towards recovery!

Jarl Sigurd

to listen to actual music recorded by a Roland GI-10
user, visit: http://www.mp3.com/JarlSigurd

Jarl Sigurd

unread,
Feb 5, 2001, 4:48:11 AM2/5/01
to
Not A Speck Of Cereal wrote

Jarl Sigurd wrote:


>[] > Speaking of which, Chris, when will we ever get to hear some
>[] > examples of how you benefit from the advantages of the Axon?
>
>What's this "we" shit? Does anyone here besides Garl require a clip
>from me to give merit to my words?

Garl? Is that some bizarre permutation of Jarl and Carl who also
requested, not so long ago, that you post some clips. I believe his
words were "Post some Clips, Shercock!!!

>I mean, besides those that have
>already heard me play live.

Okay, let's get this right, people who have actually heard
you play want you to post some clips to give merit to your
words. That's pretty bad when people who have actually
heard you play live need further convincing.

Jarl Sigurd

to listen to a piano concerto performed on MIDI guitar
visit: http://www.mp3.com/JarlSigurd

Matt Seniff

unread,
Feb 5, 2001, 9:19:12 AM2/5/01
to
On Fri, 2 Feb 2001 07:28:34 -0500, "Jarl Sigurd"
<jarls...@geocities.com> wrote:

>
>Tom Plunket wrote
>>
>>Jarl, why would you crosspost this into alt.guitar? It didn't
>>start here... You think you're adding something that the
>>alt.guitar players need to know?
>
>The Roland GI-10 and the Axon AX-100 are both GUITAR
>to MIDI interfaces.

Actually they are pitch to midi converters. Saying they are interfaces
implies that you are not inherently changing the signal but matching
it either impedance, level wise or in connection type. The GI-10,
GR30,GR33, Axon and Yamaha units are converters, they convert the
analog guitar signals to digital commands (much like the commands sent
to a printer).

> Certainly any discussion of their comparative
>merits would be of interest to any guitarists thinking of getting
>into MIDI guitar. Personally I was considering getting an Axon
>AX100. I have since decided against it, partly because of
>the high price, partly because I'm happy with the way the much
>less expensive Roland GI-10 works, partly because of negative
>comments I've heard about Axon in newsgroup discussions like
>this one, partly because Chris Sherwood uses one, but mostly
>because I don't like Sean P. O'Connor who is associated with
>Axon. Sean's recent remarks about me have just lost Axon
>a potential customer.

I am sure all the folks at Axon breathed a sigh of relief there, the
folks at Roland just roll their eyes and change the subject when your
name is mentioned.


> Perhaps a clear comparison between Axon
>and Roland will lose Axon a couple more. I've succeeded in making
>the Roland GI-10 work for me. It has enabled me to perform and
>record orchestral music on guitar. I would welcome hearing
>any clips from Axon users demonstrating what they've been able
>to do on MIDI guitar using an Axon as a MIDI interface.
>
>Jarl Sigurd
>

>to listen to music converted to a crappy midi data stream using a Roland GI-10
>visit: http://www.mp3.com/JarlSigurd
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>

Mark Plancke

unread,
Feb 5, 2001, 11:28:04 AM2/5/01
to
"Jarl Sigurd" <jarls...@geocities.com> wrote:

>Okay, let's get this right, people who have actually heard
>you play want you to post some clips to give merit to your
>words. That's pretty bad when people who have actually
>heard you play live need further convincing.
>

I've heard you play Jurl and it wasn't pleasant.

Mark Plancke
SOUNDTECH RECORDING STUDIOS
Windsor, Ontario, Canada
http://SoundTechRecording.com

I like mono...so sue me. I also only like 1 brand of
motorcycle, prefer Jim Beam to Jack Daniels, and often
prefer a bag of heroin to a day at the beach...what of it? - Fletcher

Jarl Sigurd

unread,
Feb 5, 2001, 12:11:48 PM2/5/01
to
Mark Plancke wrote:
>
> I like mono...so sue me. I also only like 1 brand of
> motorcycle, prefer Jim Beam to Jack Daniels, and often
> prefer a bag of heroin to a day at the beach...what of it? - Fletcher

How can anyone either prefer Jack Daniels or Jim Beam when
there are Single Malt Scotches like Laphroig out there.
Mind you Lynyrd Skynyrd best stuff was composed on Justerini
& Brooks(Just imagine what they could have done on single
malts)

Jarl Sigurd

to listen to music that was performed by a completely
sober person, visit: http://www.mp3.com/JarlSigurd

Mike Sandler

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Feb 5, 2001, 11:18:04 PM2/5/01
to

"Jarl Sigurd" <jarls...@geocities.com> wrote in message
news:3A7EDE...@geocities.com...

> How can anyone either prefer Jack Daniels or Jim Beam when
> there are Single Malt Scotches like Laphroig out there.
> Mind you Lynyrd Skynyrd best stuff was composed on Justerini
> & Brooks(Just imagine what they could have done on single
> malts)

Southern Comfort, man.

Mike Sandler

James Andrews

unread,
Feb 5, 2001, 11:35:34 PM2/5/01
to
Jarl Sigurd (jarls...@geocities.com) wrote:

: Speaking of which, Chris, when will we ever get to hear some


Speaking of which, when will we ever get to hear you SHUT THE FUCK UP?

Jas.

--
James Andrews
Philadelphia, PA

ryanm

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Feb 6, 2001, 12:31:39 AM2/6/01
to

You called?

ryanm
http://www.southerncomfortband.com

Not A Speck Of Cereal

unread,
Feb 6, 2001, 2:22:32 AM2/6/01
to
So "Jarl Sigurd" <jarls...@geocities.com> wuz saying::
[...]
[] I have since decided against it, partly because of
[] the high price, partly because I'm happy with the way the much
[] less expensive Roland GI-10 works, partly because of negative
[] comments I've heard about Axon in newsgroup discussions like
[] this one, partly because Chris Sherwood uses one, but mostly
[] because I don't like Sean P. O'Connor who is associated with
[] Axon. Sean's recent remarks about me have just lost Axon
[] a potential customer.

Sean is one of the most real, honest and humble mfg reps that I've run
into. But regardless of that, I wonder if Jarl considers that the more
he posts negative about the Axon (with numerous replies to the
contrary), that he is adding customers to the Axon world, in a similar
way that he and Johnny Asia add hits to their web counters.

Maybe... hey, perhaps you actually work for Axon, and this is your way
of generating sales -- clever!!

Chris

Nebuchadnezzar

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Feb 7, 2001, 4:40:46 AM2/7/01
to

"Not A Speck Of Cereal" <Xchriss...@home.comX> wrote in message
news:arks7t0q38c9osnpv...@4ax.com...

> But-I-mean-come-on-now,
> how can you detect pitch if you don't let at least one cycle go by?

It's not that surprising.

Here. Let's do an example.

Suppose we have the following sequence of (floating point) samples:

0.0000000000000000
0.3681245526846779
0.6845471059286886
0.9048270524660196
0.9980267284282716
0.9510565162951536
0.7705132427757893
0.4817536741017156
0.1253332335643045
-0.2486898871648546

Now this is only a half a cycle or so, but you can pretty much see that
something like 5 samples make up a quarter cycle. However, we will be able
to figure out what frequency this is more precisely than that. Take the
second differences:

-0.05170199944066722
-0.09614260670667974
-0.12708027057507900
-0.14016988809536990
-0.13357306138624650
-0.10821629515470930
-0.06766087186333741
-0.01760268019174804

and these are supposed to line up with the middle eight samples:

0.3681245526846779 -0.05170199944066722
0.6845471059286886 -0.09614260670667974
0.9048270524660196 -0.12708027057507900
0.9980267284282716 -0.14016988809536990
0.9510565162951536 -0.13357306138624650
0.7705132427757893 -0.10821629515470930
0.4817536741017156 -0.06766087186333741
0.1253332335643045 -0.01760268019174804

Now it's not entirely obvious but you can see that the differences have the
opposite sign of the samples, and have magnitudes that at least
qualitatively track those of the samples. This is good news, since a
sinusoid satisfies a difference equation of the form

y'' + k y = 0

where y'' is used for the second difference. So we should figure out what
value of k is happening here; we compute -y'' / y :

0.1404470282234972
0.1404470282234970
0.1404470282234974
0.1404470282234970
0.1404470282234973
0.1404470282234967
0.1404470282234978
0.1404470282234972

which is pretty constant.

And it turns out that this constant tells us the frequency.

Before sorting that out, I will explain why we know as much as we probably
can know about the signal by finding this constant. We can take the equation
that suggested the constant and write it out explicitly

y'' = y(x+1) - 2 y(x) + y(x-1)

so

y'' + k y = y(x+1) - 2 y(x) + y(x-1) + k y(x) = 0

and we can solve this last equation for y(x+1):

y(x+1) = (2 - k) y(x) - y(x-1)

and this tells us that if we know y(x) and y(x-1) then we do not have
to wait until x+1 to find out what y(x+1) is. And by the same token, we
do not have to wait until x+2 to find out what y(x+2) is, once we
compute y(x+1) we can compute y(x+2) from the formula

y(x+2) = (2 - k) y(x+1) - y(x)

and so on. We can compute y(x) as far into the future as we like, so we do
not have to wait for the signal to be sampled in order to perform
computations on it. If we have the compute power, we can do what we like.


Now If we knew y was a sin wave, we can see this by

sin(fx + k) + sin(fx - k) = 2 sin fx cos f

so that for y(x) = sin fx we have

y'' = sin(fx + f) - 2 sin fx + sin(fx - f)
= 2 sin fx (cos f - 1 )

and

- y'' / y = 2 - 2 cos f

which is really good since it does not depend on x - it is a constant.

So to match the constant to our data we need to find f such that

2 - 2 cos f = 0.1404470282234972

which f = 0.3769911184307752. To check this out we compute the values of
sin fx for x from 0 through 9: We picked 0 to start since the first value
of x was exactly 0. In real life, we have ways of figuring out where to
start.

0.0000000000000000 0.0000000000000000
0.3681245526846779 0.3681245526846780
0.6845471059286886 0.6845471059286888
0.9048270524660196 0.9048270524660196
0.9980267284282716 0.9980267284282716
0.9510565162951536 0.9510565162951534
0.7705132427757893 0.7705132427757889
0.4817536741017156 0.4817536741017148
0.1253332335643045 0.1253332335643036
-0.2486898871648546 -0.2486898871648554

as it happens, the original data had a frequency of 0.06 * 2pi and that is
0.3769911184307752; so we got all the digits of the frequency right by
looking at a half cycle. Note that we really could have pegged this
frequency by looking at the first three samples, but that could be a little
risky. But there is no need to wait for many cycles to detect the frequency;
although that does seem to be a common misconception.

Now I will not go into it deeply, but we can see that the trick here is
largely dependent on some prior knowledge. We knew that we were looking for
a nearly sinusoidal wave, and we had a characterization of sinusoidal waves
in terms of a difference equation that allowed us to compute the signal
parameter (frequency) from fitting this difference equation to the data. We
didn't even use any prior knowledge of the frequency other than the
assumption that it was sampled adequately (otherwise maybe we would have
identified an alias frequency).

In real life, the signal will not be sinusoidal, and there will be some
noise, and these things are real complications.

But they don't really change much in terms of what we can do with good
choice of signal models. And all this stuff can be automated; it's done all
the time with adaptive filters in the fields of system identification and
control.

Later,
Andrew Mullhaupt

Robert Graf

unread,
Feb 7, 2001, 8:40:52 AM2/7/01
to
I missed the original posting, but if you are trying to figure out the
frequency of a guitar signal, it changes in pitch until it settles down.
"Nebuchadnezzar" <d...@zen-pharaohs.com> wrote in message
news:yK8g6.228716$w35.40...@news1.rdc1.nj.home.com...

Mark Robinson

unread,
Feb 7, 2001, 10:22:36 AM2/7/01
to
Hi Robert

That is true, but I think that most controllers make an educated guess based on early information and then refine it over time
via pitch bend messages.

Mark Robinson
Robert Graf <rg...@cyber-age.net> wrote in message news:95rjb3$cuk$1...@news.chatlink.com...

Nebuchadnezzar

unread,
Feb 7, 2001, 12:28:58 PM2/7/01
to

"Robert Graf" <rg...@cyber-age.net> wrote in message
news:95rjb3$cuk$1...@news.chatlink.com...
> I missed the original posting, but if you are trying to figure out the
> frequency of a guitar signal, it changes in pitch until it settles down.

It doesn't necessarily settle down if there is vibrato, either.

But there is no need for the frequency to be constant even to perform the
approach I gave as an example; you can extrapolate the apparent frequency.

As long as there is some part of the early signal with a consistent
relationship to the ultimate average frequency you don't have to wait.

Later,
Andrew Mullhaupt


B. Pilgrim

unread,
Feb 7, 2001, 5:04:47 PM2/7/01
to

"Atlas" <c1su...@hotmail.com> wrote in message
news:B80C5D61B8DA1718.EC1E4546...@lp.airnews.net...
> x-no-archive: yes
>
> 1. Makers Mark Bourbon
> 2. Meyers Dark Rum
> 3. Stoli's Vodka
>
> Hope that helped!

Discovered Sunday night that 1:1 Parrot Bay or Absolut Citron and Sprite doesn't
even taste like a mixed drink.

Anyhow
1.. Wild Turkey 101
2. Makers Mark
3. Patron (Silver) Tequila

> Atlas


Bob Clayton

unread,
Feb 8, 2001, 12:55:08 AM2/8/01
to
>
>On Tue, 06 Feb 2001 15:43:50 -0800, Not A Speck Of Cereal
><Xchriss...@Xmsn.comX> wrote:
>
>>1. McCallen 18 year single malt scotch
>>2. Tanqueray Millaca Gin (replaces Bombay Sapphire)
>>3. Stoli's Vodka
>
> Next rounds' on me! :)
>
>
>Atlas
>

So what's the question? Do we choose one o' them, or give our own list, like
the "What's in your CD player" threads? I think I missed the original post.

If Atlas is buying, though, I'll take one of those $75 a bottle single-malts,
thank you very much. If that's too pricey, how about Barbancourt Rhum? The
three-star is only $15-18 a bottle, and I like it better than the five-star or
the Reserve Especial, both of which are so dark-molasses-flavored as to be
"chewy." But then again, I like the less-peaty single malts, too.

Bob C.

Quality music since 1963.


Jarl Sigurd

unread,
Feb 8, 2001, 1:47:37 AM2/8/01
to
Bob Clayton wrote:
>
> But then again, I like the less-peaty single malts, too.

Wimp!!!! Laphroig Rules!!! Peat is our friend.

Jarl Sigurd

to listen to a cello concerto that was not inspired
by Laphroig, visit: http://www.mp3.com/JarlSigurd


Mark Garvin

unread,
Feb 8, 2001, 2:13:57 AM2/8/01
to
Don't let the title fool you. They're spare helium balloons.
He's usually an A-cup before the end of the first set.

MG

Not A Speck Of Cereal

unread,
Feb 8, 2001, 3:18:28 AM2/8/01
to
So rjcl...@aol.comglarp (Bob Clayton) wuz saying::
[]
[] So what's the question? Do we choose one o' them, or give our own list,

Yes.

[] If Atlas is buying, though, I'll take one of those $75 a bottle single-malts,


[] thank you very much. If that's too pricey, how about Barbancourt Rhum? The
[] three-star is only $15-18 a bottle, and I like it better than the five-star or
[] the Reserve Especial, both of which are so dark-molasses-flavored as to be
[] "chewy." But then again, I like the less-peaty single malts, too.

Me too!

Tip: a good, not too pricey single malt that's not too peaty/smokey
and has a nice honey like after-taste: Glen Rothes. It's not easy to
find, but it's not ultra rare, depending on your local suppliers. It's
under $50.

Fascinated in Fargo

unread,
Feb 8, 2001, 6:46:27 AM2/8/01
to
Appleton Plantation Rum....
Bob Clayton <rjcl...@aol.comglarp> wrote in message
news:20010208005508...@ng-cf1.aol.com...

song...@my-deja.com

unread,
Feb 8, 2001, 11:51:29 AM2/8/01
to
In article <3A8241...@geocities.com>,

Well, "inspired by Laphroig" might make for better music than that, you
know. As for peatiness, Leap-frog* is more iodine than peat, anyway. It
was one of the few legal imports under prohibition, since its taste
made it obviously "for medicinal purposes only." Or so I've heard.

* I've actually seen that spelling on a bottle of $85 scotch, part of a
series of "collectors' scotches," wherein someone -- a "malt expert" --
selects certain runs of the various malts and sells them under his own
label, with permission, of course. When it came to Laphroig, they could
buy and relabel the booze, but couldn't use the distillery's name, so
they used the alternate spelling. I've heard that they now have
permission to use the correct name, so I should go back to the shop and
buy the run with the "funny" name, since it's even more of
a "collector's" label. I can't remember the series name, unfortunately,
so this all sounds silly (as does a "collector's scotch," when you get
down to it.

Songuitar
--
Why are you reading this? The message is over.


Sent via Deja.com
http://www.deja.com/

James Andrews

unread,
Feb 8, 2001, 1:06:24 PM2/8/01
to
song...@my-deja.com wrote:

: a "collector's" label. I can't remember the series name, unfortunately,


: so this all sounds silly (as does a "collector's scotch," when you get
: down to it.

Yeah really. How long can you collect it before you drink it? And if
you open it and have a couple snorts, is the collector value shot, so to
speak?

Marc Mercer

unread,
Feb 8, 2001, 2:28:14 PM2/8/01
to

James Andrews wrote in message <95un70$59k$1...@netnews.upenn.edu>...

>song...@my-deja.com wrote:
>
>: a "collector's" label. I can't remember the series name, unfortunately,
>: so this all sounds silly (as does a "collector's scotch," when you get
>: down to it.
>
>Yeah really. How long can you collect it before you drink it? And if
>you open it and have a couple snorts, is the collector value shot, so to
>speak?


Only if you get a coupla boogers in there whilst snorting.


ryanm

unread,
Feb 8, 2001, 4:02:22 PM2/8/01
to
"Atlas" <c1su...@hotmail.com> wrote in message
news:8C758A870B80B141.82F8F3E8...@lp.airnews.net...
> x-no-archive: yes
>
> Atlas
> (Who's a heathen because he doesn't care for Scotch)
>
Scotch makes me vomit. I don't know why, but as soon as the first drop
hits my mouth, I'm retching. I drink all kinds of whiskies, but I just can't
drink scotch. Gin just doesn't taste good to me, either. Probably because
the first time I drank gin, I had a great big shot of it from a mason jar (I
was a kid) and it tasted exactly like a pine tree. Bleh. I'll stick to cheap
canadian whisky, decent tequila (Cuervo Gold or Petrón Silver), or rum when
I really want to regret it the next day.

ryanm


Bob Clayton

unread,
Feb 8, 2001, 4:54:02 PM2/8/01
to
>
>On 08 Feb 2001 05:55:08 GMT, rjcl...@aol.comglarp (Bob Clayton)
>wrote:

>
>>If Atlas is buying, though, I'll take one of those $75 a bottle
>single-malts,
>
> Dammit, Bob. You sure are getting greedy in your old age. I
>said I'd buy the next round...not the next BOTTLE. <G>

>
>
>Atlas
>(Who's a heathen because he doesn't care for Scotch)

Okay, I'll take a glass/dram/shot/taste of one of those $75-a-bottle scotches,
and I'll take Atlas' share, too, since he's not having any.

And "Circle of Fifths" isn't a band name, but a rehearsal leftover.

Jarl Sigurd

unread,
Feb 8, 2001, 6:07:39 PM2/8/01
to
ryanm wrote:
>
> "Atlas" <c1su...@hotmail.com> wrote in message
> news:8C758A870B80B141.82F8F3E8...@lp.airnews.net...
> > x-no-archive: yes
> >
> > Atlas
> > (Who's a heathen because he doesn't care for Scotch)
> >
> Scotch makes me vomit. I don't know why, but as soon as the first drop
> hits my mouth, I'm retching. I drink all kinds of whiskies, but I just can't
> drink scotch.

Analog Scotch or Digital Scotch? Digital Scotch tastes like it has
tiny gaps where the peaty taste is supposed to be.

Jarl Sigurd

to listen to digitally recorded guitar without any
gaps, visit: http://www.mp3.com/JarlSigurd


Les Cargill

unread,
Feb 8, 2001, 8:06:00 PM2/8/01
to

ryanm wrote:
>
> "Atlas" <c1su...@hotmail.com> wrote in message
> news:8C758A870B80B141.82F8F3E8...@lp.airnews.net...
> > x-no-archive: yes
> >
> > Atlas
> > (Who's a heathen because he doesn't care for Scotch)
> >
> Scotch makes me vomit. I don't know why, but as soon as the first drop
> hits my mouth, I'm retching.

Even blended stuff, like Chivas? Chivas is a pretty good "entry level"
scotch.

> I drink all kinds of whiskies, but I just can't
> drink scotch. Gin just doesn't taste good to me, either. Probably because
> the first time I drank gin, I had a great big shot of it from a mason jar (I
> was a kid) and it tasted exactly like a pine tree.

It's flavored with juniper berries. Gin is for insane people or the
English.

> Bleh. I'll stick to cheap
> canadian whisky, decent tequila (Cuervo Gold or Petrón Silver), or rum when
> I really want to regret it the next day.
>
> ryanm

--
http://home.att.net/~lcargill

Not A Speck Of Cereal

unread,
Feb 9, 2001, 2:26:18 AM2/9/01
to
So "Marc Mercer" <marc_...@agilent.com> wuz saying::
[] >
[] >Yeah really. How long can you collect it before you drink it? And if

[] >you open it and have a couple snorts, is the collector value shot, so to
[] >speak?
[]
[]
[] Only if you get a coupla boogers in there whilst snorting.

Nice Ozzy content.

Me, I like to collect good scotch in my liver.

Not A Speck Of Cereal

unread,
Feb 9, 2001, 2:28:51 AM2/9/01
to
So Les Cargill <lcar...@worldnet.att.net> wuz saying::
[]
[] It's flavored with juniper berries. Gin is for insane people or the
[] English.

You say that like it's a bad thing. I'm drinking a Malacca gin martini
as we type. Nothing like postin' while toastin'.

T'was a long day....

Not A Speck Of Cereal

unread,
Feb 9, 2001, 2:29:51 AM2/9/01
to
So rjcl...@aol.comglarp (Bob Clayton) wuz saying::
[]
[] And "Circle of Fifths" isn't a band name, but a rehearsal leftover.

Oh MAN!

B. Pilgrim

unread,
Feb 9, 2001, 4:54:46 AM2/9/01
to

"Atlas" <c1su...@hotmail.com> wrote in message
news:DC4496CC36F3A53D.5EBD6DF8...@lp.airnews.net...

> >Anyhow
> >1.. Wild Turkey 101
> >2. Makers Mark
> >3. Patron (Silver) Tequila
>
> Okay. Not bad.

I've actually been 'off' Turkey since New Year's Eve - 14 shots in 1.5 hours,
plus two shots of Crown, a Crown and coke, and some champagne. *shudder* I
remember saying hello to some friends, walking upstairs, and then waking up the
next afternoon at someone else's apartment. Lord only knows what happened after
1:30am.

Patron's too expensive to drink at restaurants and bars - minimum of $6/shot
around here.

> I was at Target the other day. And while parusing the liquor
> isle, I saw that they sell Sammy Hagar's Cabo Wabo Tequila. Get this -
> for $50 a bottle!

Sweet God.

> HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA!!!!!
>
> For that kind of money, I can buy a bottle of Makers Mark, a
> case of New Castle Brown Ale, and have enough money left over for 3
> movie rentals (new releases), AND a can of Planters Peanuts.
> Atlas

Or 50 liters of Purple Passion (everclear and grapefruit juice), if you're
having a party. :) Bottled trashcan punch. God bless America.

Mike Sandler

unread,
Feb 9, 2001, 4:58:46 AM2/9/01
to

"B. Pilgrim" <mr_kilgoretrout@(notthis)hotmail.com> wrote in message
news:G7Pg6.200856$ge4.68...@news2.rdc2.tx.home.com...

> Or 50 liters of Purple Passion (everclear and grapefruit juice), if you're
> having a party. :) Bottled trashcan punch. God bless America.

This Lyrica "Raspberry Merlot" (GUFFAW) is a dollar a bottle. Get two and
you got a nice buzz for 2 bucks. God bless America indeed.

Mike Sandler

Bob Clayton

unread,
Feb 10, 2001, 2:06:48 AM2/10/01
to
>> >3. Patron (Silver) Tequila
>>

One tequila,
Two tequila,
Three tequila,
Floor!

StratKat

unread,
Feb 10, 2001, 8:48:59 AM2/10/01
to
ahhhhhh ya wussies!

REAL men drink m00nshine! (in mason jars).

and with that said, i drink Schnapps! (i can feel the shoulders
shudderin already)

I tried to get into the drinkin thang when i was young but it twernt no
use. I just got sick as a dawg everytime. Then one night i drank a half
of a fifth of Cutty Sark and for some reason it stayed down. Never had a
problem drinking (or eating) anything after that night. Turkey, Daniels,
shine, Scotch, whatever ya had was fine. Took a year for my taiste buds
to recover though. Then i got addicted to the juice. It wasnt worth it
guys!!! I dont know what was worse. Drinking and having the porceilin
blues or the shakes trin to beat it. I drink once a year now or so when
its sociable but thats about it. Sometimes when i have insomnia i drink
a small glass of wine and it takes the brightness out of my eyes long
enough to fall off. But since i dont drink hardly anything anymore it
doesnt take much ya know?


Robby - (StratKat)
*********** Favorite Sites! ***********
Free lessons and gear pics @ my website
My homepage: - http://www.stratkat.com
FenderTalk: - http://www.fendertalk.com
The F.D.P. - http://www.fenderforum.com
Deltablues-http://www.deltabluesman.com

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