Index of /geminiatari/FILES/MUSIC/TXLIBR21

      Name                    Last modified       Size  Description


[DIR] Parent Directory        24-Sep-2006 15:33      -  
[TXT] INTERNAL.PRF            03-Oct-1987 09:26     4k  
[TXT] INTRNALA.BNK            03-Oct-1987 09:25     4k  
[TXT] INTRNALB.BNK            03-Oct-1987 09:25     4k  
[TXT] TXLIBR.RSC              18-Oct-1987 11:13    22k  
[   ] TXLIBR21.DOC            18-Oct-1987 11:13    11k  
[TXT] TXLIBR21.PRG            18-Oct-1987 11:13    54k  
[TXT] TXPERF.RSC              18-Oct-1987 11:13    17k  


           TX81Z VOICE/PERFORMANCE EDITOR AND LIBRARIAN
                     Version 2.01 Oct 1,1987

                              ======
                               BUGS
                              ======

While in the Voice Editor,  you may notice that changing the  Fine 
Frequency Range for operators 2, 3, and 4 doesn't work.  The value 
is  changed  on the screen,  but the synthesizer is  not  updated. 
Instead,  operator  1,  2,  or 3 will be turned on or  off.   I've 
talked  to  Yamaha  about  this,   and  they  say  my  program  or 
synthesizer  is defective,  because no one else has  reported  the 
problem.   I'm  fairly certain the program is sending the  correct 
data,  since  it works properly with every other parameter on  the 
synthesizer.  I've also written stand-alone programs to test every 
possible combination of parameter change that could be  sent,  and 
was  never  able to send Fine Frequency changes  for  those  three 
operators.   If  anyone  else experiences this  problem,  I  would 
appreciate hearing from you.   If you have a fix,  I would  really 
like to hear from you!

                              -----

Selecting  voices  or  performances while  holding  keys  on  your 
keyboard  down may cause the keyboard to lock up.   When the  left 
mouse  button is clicked,  the string $B0 $7B (all notes  off)  is 
immediately sent.  This silences the Yamaha, but crashes my Casio. 
I tried sending a loop with individual note off events for all 127 
notes,  which  was  good for the Casio,  but bad for  the  Yamaha.  
Holding  the button down too long would cause a Midi  Buffer  Full 
error  on  the  Yamaha.   While editing a  voice  or  performance, 
however,  there was time to send a note off for all notes,  so the 
problem  doesn't  occur  here.   Moral -  don't  hold  keys  while 
changing voices.

                              -----

Not  really a bug,  but I didn't bother to set the colors  to  the 
best  values  for the program.   The program looks  best,  and  is 
easiest to read if you set your med res colors to white,black,red, 
and blue,  with full intensity for each color.  (At least it looks 
best  too me - I find the green background difficult to watch  for 
long  periods of time.)  The program runs in mono,  but the  Voice 
Editor Dialog is a little out of alignment.  This can be corrected 
with  an  RCS  by  editing  the  tree  EDVDIAL  in  the   resource 
TXLIBR.RSC.

                    =========================
                    DX21/27/100 COMPATIBILITY
                    =========================

During  the  last  re-write of this program,  I  tried  to  follow 
Yamaha's  format  exactly for all voice  transfers  and  parameter 
changes.   This  means that most of the functions of this  program 
should  also  be useable by DX21/27/100 owners.   I  can't  verify 
this,  since I don't have one of those synthesizers.   If you  do, 
and this program works, please let me know!

In case it does work,  I'm including page 48 from the TX81Z manual 
below.   This  should explain some of the differences between  the 
synthesizers.

                              -----

The  TX81Z uses the same 4-operator,  8-algorithm FM synthesis  as 
the DX21,  DX27,  and DX100, and voice data can be transmitted and 
received  between  them.   However,  the  TX81Z has  a  number  of 
features that the DX21/28/100 does not.

* The Frequency CRS(RATIO) adjustment is equivalent to the  values 
programmable  in the DX21/27/100.   The FIN(RATIO)  adjustment  is 
additional   precision  available  in  the   TX81Z.    Also,   the 
DX21/27/100 operators have no FIX mode.

* The DX21/27/100 operators produce only sinewaves.   When a TX81Z 
voice   tht   uses  non-sinewave  operators  is  loaded   into   a 
DX21/27/100, it will not sound the same.

* EG RR.   The Envelope Generator Release Rate on the  DX21/27/100 
can  be set to 0,  whereas the TX81Z EG-RR minimum setting  is  1.  
When  voice data is received from a DX21/27/100,  any  EG  release 
rates of 0 are set to 1.

* EG-EG Shift is not a parameter on the DX21/27/100,  and will  be 
ignored when you load data from the TX81Z.

*  Parameters which the TX81Z does not have (PEG,chorus)  will  be 
set to Off or 0.

*  The  TX81Z  BC  Pitch Bias of -50 to  +50  corresponds  to  the 
DX21/27/100  BC  Pitch  Bias  of  0-99.   However,  the  curve  is 
different. (Exponential, not linear.)

                              -----

                            John Davis
                            4501 61st
                        Lubbock, TX  79414

                              -----