TD-3 Format support #1

parashu-rama · 2021-09-03T20:58:17Z

Hello!

I want to convert TD-3 seq to Crave seq.

Can you help me with TD-3 seq file support?

claziss · 2021-09-03T21:09:11Z

Sure, plz let me check the TD-3 format.

parashu-rama · 2021-09-03T21:14:41Z

Thank You!
Da Funk.seq.zip

claziss · 2021-09-05T15:35:49Z

Hey, I will do first a TD-3 sequencer dumper, then I'll move in creating the convertor to Crave seq. It will take a bit.

parashu-rama · 2021-09-05T15:56:13Z

Thank You!

claziss · 2021-09-06T10:16:25Z

Hey @parashu-rama , please can you share with me a simple TD3 sequence of lenght 16, where u have a single C3 note in the first position? I do not have a TD3 and the Behringer tool requires one. I may need several such simple sequences to identify all the td3 seq file info.

parashu-rama · 2021-09-06T10:25:48Z

Me either :)
Found this https://303patterns.com/
Will ask for support!

parashu-rama · 2021-09-06T15:27:27Z

Bought One! Wait for delivery :)

bradisbell · 2021-09-06T18:42:50Z

Hello all. I received an e-mail requesting me to check this thread.

I've documented the TD-3 MIDI implementation here: https://303patterns.com/td3-midi.html I haven't looked at the sequence files saved from Synthtribe in awhile, but if I remember correctly, they basically followed the same format as you get via SysEx. If you find this documentation useful, please feel free to consider dropping a link back to 303patterns.com. :-)

Also, if you want to use the Synthtribe tool before your actual TD-3 arrives in the mail, all you need is a MIDI port labeled TD-3. Use your favorite MIDI tool to create such a port, such as Tobias Erichsen's rtpMIDI or loopMIDI: http://www.tobias-erichsen.de/software.html

claziss · 2021-09-07T16:14:32Z

@bradisbell Thanks for the info !

claziss · 2021-09-08T18:22:57Z

@parashu-rama I think I've cracked. The listing of DaFunk:

[G1	   	  ]
[A#3	   	  ]
[G2	  A	  ]
[F3	   	  ]
[D#2	S A	  ]
[C2	S  	  ]
[C1	S A	  ]
[C3	S  	  ]
[D#3	  A	  ]
[D#1	   	  ]
[F3	  A	  ]
[G3	S A	  ]
[A#1	   	  ]
[G1	  A	  ]
[C1	  A	  ]
[G2	  A	  ]

I still need to clean the implementation up, there are some fields which are not clear to me what they represent. However, we can go further a bit and think how we map the TD-3's slide and accent. Clearly we can map TD3's accent to Crave's accent, but what we do with TD3 slide? Shall we map it to Crave's glide or note length?

parashu-rama · 2021-09-08T18:50:24Z

Congratulation!
My td-3 should be delivered before September 13.
We can test the sound of slide in both versions or implement both options to choose from using the command line parameter.
Or ignore it :)

eg
--slide none/glide/length

claziss · 2021-09-08T19:01:10Z

That is a good idea.

parashu-rama · 2021-09-08T19:44:53Z

Manually enter pattern in SynthTribe with glide and try to txtdump it.

Unknown header because crave version 1.1.2
Change to 1.1.1 in hexeditor - octave mismatch - but sound good

Swing: 50%	 Length 16
[G2	     	 64 x1 ####     ]
[A#3	     	 64 x1 ####     ]
[G3	  A  	 64 x1 ####     ]
[F4	     	 64 x1 ####     ]
[D#3	G A  	 64 x1 ####     ]
[C3	G    	 64 x1 ####     ]
[C2	G A  	 64 x1 ####     ]
[C4	G    	 64 x1 ####     ]
[D#4	  A  	 64 x1 ####     ]
[D#2	     	 64 x1 ####     ]
[F4	  A  	 64 x1 ####     ]
[G4	G A  	 64 x1 ####     ]
[A#2	     	 64 x1 ####     ]
[G2	  A  	 64 x1 ####     ]
[C2	  A  	 64 x1 ####     ]
[G3	  A  	 64 x1 ####     ]

dafunk-crave.seq.zip

claziss · 2021-09-09T07:05:34Z

It is an interesting project, but step by step. Let's first finish the the TD3 to Crave (and other way around?) project.

claziss · 2021-09-09T20:48:13Z

@parashu-rama I've pushed a crude TD3 seq parser. Please give it a try and let me know how does it work. To parse a TD3 seq file just pass -t option.
For example:

 ./txtdump -t td3/DaFunk.seq

The txdump without the -t option will parse the crave specific sequence.

parashu-rama · 2021-09-09T21:03:51Z

Works like a charm! Thanks!

parashu-rama · 2021-09-10T06:39:36Z

Probably Crave octave mismatch

CraveSeq % ./txtdump -t Da\ Funk.seq
Parse TD3 seq file ...
Swing: 0%	 Length 16
[G1	     	 ]
[A#3	     	 ]
[G2	  A  	 ]
[F3	     	 ]
[D#2	S A  	 ]
[C2	S    	 ]
[C1	S A  	 ]
[C3	S    	 ]
[D#3	  A  	 ]
[D#1	     	 ]
[F3	  A  	 ]
[G3	S A  	 ]
[A#1	     	 ]
[G1	  A  	 ]
[C1	  A  	 ]
[G2	  A  	 ]

CraveSeq % ./txtdump xz.seq

Swing: 50%	 Length 16
[G2	     	 64 x1 ####     ]
[A#4	     	 64 x1 ####     ]
[G3	  A  	 64 x1 ####     ]
[F4	     	 64 x1 ####     ]
[D#3	G A  	 64 x1 ####     ]
[C3	G    	 64 x1 ####     ]
[C2	G A  	 64 x1 ####     ]
[C4	G    	 64 x1 ####     ]
[D#4	  A  	 64 x1 ####     ]
[D#2	     	 64 x1 ####     ]
[F4	  A  	 64 x1 ####     ]
[G4	G A  	 64 x1 ####     ]
[A#2	     	 64 x1 ####     ]
[G2	  A  	 64 x1 ####     ]
[C2	  A  	 64 x1 ####     ]
[G3	  A  	 64 x1 ####     ]

claziss · 2021-09-10T08:37:09Z

Yes the octave number may be off by one as I am counting from zero. I will check this.

claziss · 2021-09-11T13:59:04Z

@parashu-rama Please check the latest push. I've added the '-d' option which is parsing the TD3 sequence file, and dumps it as a Crave sequence file. The Crave sequence file has .crave.seq extension. It is still a very crude implementation, but the output looks alright.

I've also corrected the octave missmatch.

parashu-rama · 2021-09-11T15:25:58Z

It working! Thank You!
https://youtu.be/Q4KkNYIL8iE

parashu-rama · 2021-09-14T05:53:52Z

At last a simple TD3 sequence of lenght 16, where u have a single C3 note in the first position.
singleC3.seq.zip

claziss · 2021-09-14T06:09:10Z

It looks like the last 4bytes from seq file are set. I need to figure out their meaning. The TB 303 (and TD3) should have something about note length, maybe this is the one.

parashu-rama · 2021-09-14T06:31:14Z

TD-3 gate length 50 and 100
c3l.seq.zip

Crave

claziss · 2021-09-14T07:09:39Z

When slide is on, the TD-3 editor shows the note as 100% open.

parashu-rama · 2021-09-14T07:18:57Z

oops, sorry

Any other test?

parashu-rama · 2021-09-14T12:15:42Z

what we do with TD3 slide? Shall we map it to Crave's glide or note length?

I think 100% length better
parser.c.diff.txt

claziss · 2021-09-14T14:40:59Z

what we do with TD3 slide? Shall we map it to Crave's glide or note length?

I think 100% length better
parser.c.diff.txt

Updated as you suggested. Plus I don't check for TD3 version any longer.

parashu-rama · 2021-09-14T15:02:59Z

Thanks!

Are you interested in parsing the uno synth patch sequence or I close this issue?

claziss · 2021-09-14T15:20:28Z

I need to fix the obvious snafus for this implementation first. Probably it is a good idea to use something more highlevel like Python, and after that to parse the Uno too.
I'll close the issue my self.

parashu-rama · 2021-09-14T16:08:18Z

How I can help You?

claziss · 2021-09-14T17:39:53Z

For the time being nothing to do on your side, I will have an update soon, and then I would like to ask you to compare the sound from Crave and TD3 ;) Still decoding the last bits of TD3 seq format, and I think I've got a good idea what every filed does.

parashu-rama · 2021-09-14T19:07:27Z

https://youtu.be/CyGYl5CtBpI

claziss · 2021-09-14T20:04:06Z

@parashu-rama Thanks for the demo, any chance to use your TD-3 and record only the DaFunk seq in a wave and share it?
Also, please find my latest update, with the missing link ;) namely the sustain note of TB-3. I do not think, I do a good job when creating the crave sequence with sustain.

parashu-rama · 2021-09-14T20:20:06Z

140921.m4a.zip

claziss · 2021-09-15T08:06:09Z

I've made some mods in how to handle the TD3' sustain pitch feature. I hope it sounds good on a Crave. Anyhow, the above dafunk track looks all right although I couldn't get to much acid from my Crave.
@parashu-rama please make a new issue with the Uno sequencer, I'll check what is its format in a shot while. Cheers.

parashu-rama · 2021-09-15T14:10:17Z

Last note length bug?
./txtdump -d I\ feel\ love.seq
Parse TD3 seq file and convert...
Swing: 50% Length 8
01:[C2 A #### ]
02:[C3 A #### ]
03:[C2 A #### ]
04:[C3 A #### ]
05:[G2 A #### ]
06:[G2 A #### ]
07:[A#3 A #### ]
08:[A#3 A ######## ]

I feel love.zip

claziss · 2021-09-15T15:10:49Z

@parashu-rama fixed

parashu-rama · 2021-09-15T18:48:59Z

Thanks!

parashu-rama · 2021-09-17T06:44:48Z

Probably octave mismatch 02 step?

./txtdump -t Da\ Funk.seq
Parse TD3 seq file ...
Swing: 50% Length 16
01:[G1 #### ]
02:[A#4 #### ]
03:[G2 S ######## ]
04:[F3 #### ]
05:[D#2 S A ######## ]
06:[C2 A #### ]
07:[C1 S A ######## ]
08:[C3 A #### ]
09:[D#3 S ######## ]
10:[D#1 #### ]
11:[F3 S ######## ]
12:[G3 S A ######## ]
13:[A#2 #### ]
14:[G1 S ######## ]
15:[C1 S ######## ]
16:[G2 S ######## ]

claziss · 2021-09-20T06:22:20Z

C2 (TD3) is 0x18 (24 decimal), the second position has 0x2e value (46 decimal), hence, there are 22 pitches between the two notes:

Note	Value
C2	24
C#2	25
D2	26
D#2	27
E2	28
F2	29
F#2	30
G2	31
G#2	32
A3	33
A#3	34
B3	35
C3	36
C#3	37
D3	38
D#3	39
E3	40
F3	41
F#3	42
G3	43
G#3	44
A4	45
A#4	46
B4	47

To me, the second pitch should be A#4.

parashu-rama · 2021-09-20T07:41:54Z

I think that octave begins with C, not A

.

claziss · 2021-09-20T09:11:24Z

Yes, that is true, if you are considering C major scale.
I use A major scale for printing. However, the seq file should be correct. I will revert this patch

parashu-rama · 2021-09-20T09:19:12Z

Thank you for the clarification!

TD-3 Format support #1

TD-3 Format support #1

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