Re: [tuning] Digest Number 913

Hi Paul,

>>This is layout is a six pointed star, one for each triad,

>You mean one for each tone/vertex, right?

the "one for each triad" refers to the six pointed star, not
its points.

I meant one six pointed star projection for each triad.

So there are 8 stars, four of which are mirror images of the
other 4 in non perspective 2D projection, though they can
be distinguished in perspective projections because the nearer
triangle looks larger.

You can find them all in the Viewpoints drop list of your VRML browser.

>the 5/4 35/32 15/8 triad sounds identical to the 3/2 21/16 15/8 triad.

Yes, clearly I've recorded same one twice.

>the 3/2 21/16 7/4 triad sounds way more dissonant than it should.

Yes, I can hear a stray 35/32 in it - fixed.
(easy to do - nearly did it again!)

>some of the diads and monads on the middle horizontal plane still have the
>old timbre and problems

Yes, hear what you mean, e.g the 35/32 5/4

(Intonation is the same, as I have just checked from the hex dumps, but
timbre is different as it is for a violin voice. Not sure how that happened
as I thought I recorded them for Contrabass.)

N.B. I find one gets a somewhat different perception of pitch for the double base voice on my soundcard.
It's because of the way the sound fades out, and the effect that one perceives a note as very slightly higher
in pitch if louder for high notes (the other way round for low notes like about A3 or less).

Somehow one notices this particularly for the Contrabass as it is such a "plain" voice. To my ear, the
sound seems to go noticeably flat towards the end of each note as it fades. The same effect occurs
with violin, but is not so noticeable as the quality of the sound itself grabs ones attention more.

I wonder if musicians automatically play a bit sharper in actual pitch, in order to preserve the
percieved pitch, as the note fades away? Might be something to suggest to soundcard /
synth manufacturers (or maybe they already do it?)

That was an easy one to fix - just did a search of the hex dumps for "violin"

It's all the vertices + the 35/32 5/4 and 35/32 21/16.

Thanks!

Updated zip.
http://www.robertwalker.f9.co.uk/hexany.zip [69 KB]

On-line .wrl files that use the same midi clips:
http://www.rcwalker.freeserve.co.uk/interactive_models_with_titles/hexany.wrl
http://www.rcwalker.freeserve.co.uk/interactive_models_with_titles/hexany_shows_factors.wrl

---------------To anyone who is going to look at the on-line files:---------------

If you have already looked at the earlier version, make sure you exit from all copies of your
browser window, then start it up again, otherwise it may well continue to use the cached
midi clips.

That mightn't be enough, you might still get the old versions.

In fact I actually had to go to
C:\WINDOWS\Temporary Internet Files
and do a search for midi clips, order them according to last modified date, and delete all the
ones from the .wrl file, before I could hear the new versions.

They are pretty obvious - a whole list of things like 5_4_7_4.mid.

Easy to delete them because they will all be together
in a block of files as they are all downloaded at almost the same time.

This was for the combination of IE5 + WorldView - maybe it varies, whether you have to do this.

You may get message to check if you really want to look at your
Temporary Internet Files folder which you need to say Yes to first.

(I'm not sure, as I have switched off those warnings, as I often need to
look at the system folders etc.)

Certainly, if you double click on a midi clip in the folder to listen to it, you will get a warning
"Running a system command on this item might be unsafe - do you want to continue - it's
obviously okay for midi clips, but they seem to make no distinction of file types for the warnings for the
temporary internet files folder.!

(N.B. you know that thing that sometimes happens, that one sees something really interesting,
and then forget where you saw it? Well you can often find it in this folder. Search for files of type
*.htm, Sort by date, look back a bit, and there it will be, like as not. Now go to the folder itself
and find it there, e.g. using alph. sort, and you will see the url next to it, and can go back to
it by double clicking on the name)

-----------------end of bit about the on-line files ------------------------

I'm planning to add an option to FTS to make midi clips for all the notes in a scale, and all its
consonant diads and triads all with a single click (then you just sit back while it plays all the
notes and chords and saves the files). Same for .wav clips.

It can detect consonant diads by checking if there are any beats less than, say, 20 Hz.

Will save a great deal of typing and button clicking.

Robert