The Yamaha AN1x Synthesizer mailing list

I was wanting to do some 'formant' based synthesis and realized I 
didn't have any herz numbers in my synth manual. I recall some 
lengthy discussion we had about LFO frequency in Hz, but I don't 
recall anyone mentioning a resources for the filter frequency. I 
believe Jon had an LFO table handy, and I am hoping something similar 
will turn up in this case.

I guess if there isn't a Hz table out there, I can always get the 
filter to self-oscillate and find the closest note from my other 
synths. I am not trying to nail any particular note, just get close 
to the resonant frequencies for the human voice.

Anybody done this yet? I'd appreciate if anyone knows any 
shortcuts....Also, does anybody know where I can find a pitch (note) 
to herz conversion table......

Thanks in advance,

Jerry

PS: If I do this, I'll post my results, in case somebody else gets a 
similar crazy yearning. :)

Well, for starters:

Middle A = 440Hz

(Double it for each octave up the keyboard)
(Half it for each octave down the keyboard)


Hold a sec, I just did a search and look what my local uni have come up
with:

http://www.phys.unsw.edu.au/~jw/notes.html

Now how's that?!!

Phil

From: tuskerfort@...
Reply-To: AN1x-list@yahoogroups.com
Date: Tue, 30 Oct 2001 21:50:56 -0000
To: AN1x-list@yahoogroups.com
Subject: [AN1x-list] Filter frequency in HZ


I was wanting to do some 'formant' based synthesis and realized I
didn't have any herz numbers in my synth manual. I recall some
lengthy discussion we had about LFO frequency in Hz, but I don't
recall anyone mentioning a resources for the filter frequency. I
believe Jon had an LFO table handy, and I am hoping something similar
will turn up in this case.

I guess if there isn't a Hz table out there, I can always get the
filter to self-oscillate and find the closest note from my other
synths. I am not trying to nail any particular note, just get close
to the resonant frequencies for the human voice.

Anybody done this yet? I'd appreciate if anyone knows any
shortcuts....Also, does anybody know where I can find a pitch (note)
to herz conversion table......

Thanks in advance,

Jerry

PS: If I do this, I'll post my results, in case somebody else gets a
similar crazy yearning. :)



Community email addresses:
  Post message: AN1x-list@yahoogroups.com
  Subscribe:    AN1x-list-subscribe@yahoogroups.com
  Unsubscribe:  AN1x-list-unsubscribe@yahoogroups.com
  List owner:   AN1x-list-owner@yahoogroups.com

Shortcut URL to this page:
   http://groups.yahoo.com/group/AN1x-list
 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Phil, I think he meant the frequencies of the filters...bit the oscilkators... I would like to know these frequencies too...(of the filters)

to make the equasiotn of the notes/fre do this

count the half-notes it is apart from A3 and do 2^(halvenotes/12)*440.1




[Non-text portions of this message have been removed]

ooops, sorry!

So if I'm understanding you correctly, you want the pitch of the sine wave
produced by the self-resonant filter. Basically, a table that tells you the
Filter Cutoff value (0-127) and its corresponding frequency. I'm not quite
sure that will be as easy to find. I've now re-read your post and like you
said, it might be something you'd have to nut out on your own with another
synth, comparing the results.

Anyway, if anyone interested in a "Note->Frequency Table", I have one here,
little use, going cheap, unwanted gift... ;-)

Phil

From: "Bastiaan van de Werk" <bazziman@...>
Reply-To: AN1x-list@yahoogroups.com
Date: Wed, 31 Oct 2001 00:36:31 +0100
To: <AN1x-list@yahoogroups.com>
Subject: Re: [AN1x-list] Filter frequency in HZ


Phil, I think he meant the frequencies of the filters...bit the
oscilkators... I would like to know these frequencies too...(of the filters)

to make the equasiotn of the notes/fre do this

count the half-notes it is apart from A3 and do 2^(halvenotes/12)*440.1




[Non-text portions of this message have been removed]



Community email addresses:
  Post message: AN1x-list@yahoogroups.com
  Subscribe:    AN1x-list-subscribe@yahoogroups.com
  Unsubscribe:  AN1x-list-unsubscribe@yahoogroups.com
  List owner:   AN1x-list-owner@yahoogroups.com

Shortcut URL to this page:
   http://groups.yahoo.com/group/AN1x-list
 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

--- In AN1x-list@y..., Phil <accession@o...> wrote:
> ooops, sorry!
> 

Phil, I think you had it right. Unless I misunderstood too - he wanted 
a Hz table for the AN1x filter values AND a pitch to Hz table.

I took a quick peak at AN1xEdit and the Filter values are the same as 
the AN1x proper. If I recall correctly, Gary had said he used 'real' 
values, i.e., Hz and ms., where and when he could but that Yamaha 
didn't provide real world values for much of the AN1x (or something 
close to that..)

Has anybody checked the AN200 manual? What values does it use? Same as 
the AN1x manual?

Jon

> Phil, I think you had it right. Unless I misunderstood too - he 
wanted 
> a Hz table for the AN1x filter values AND a pitch to Hz table.

Jon:

You are all right. I wanted both. That note-to-frequency graphic is 
great Phil. Thx.

I guess now I just need to fire up my synths and go to work on the 
filter frequency chart. ;)

Cheers,

Jerry