PROJECT: HYDRA Dense Music Format (HDMF) Driver and Application Suite Release 1
epmoyer
Posts: 314
The HYDRA Dense Music Format (HDMF) Driver and Application Suite is finished.
HDMF is a suite of drivers, documentation, and utilities that enable the easy creation and playback of complex, emotive, polyphonic music on the Hydra platform by converting MIDI song data into HDMF data sets which can be played by HDMF drivers. The attached package is jam packed with demos and examples to help you get great music into your games quickly and painlessly.
I began work on HDMF intending to write a simple set of tools which would allow me to add good music to SpaceWar!. It grew unbidden into a month long obsession to provide a robust music framework that would serve the whole Hydra community. Now it is done. And it is good.
Go forth and rock.
The open bug list, release history, and latest version will be maintained here in this first thread entry, which I will continue to update as necessary.
Open Issues: No known issues.
RELEASE HISTORY:
Release 1.2
HDMF Translator 1.2.0
Some MIDI files (in apparent violation of the spec) include an
extra zero byte after the 'End of Track' event. Ignore any data after
the 'End of Track' event to correct this.
Release 1.1
HDMF Translator 1.1.0
Dynamically allocate note space on the fly so that any size MIDI file may be loaded.
Correct COM control so that it moves properly when resizing the main form.
Add "about" box.
Fix Configuration window crash when MIDI's containing more than 8 tracks are loaded.
Release 1.0
Initial Release
Post Edited (epmoyer) : 5/29/2007 3:33:37 PM GMT
Comments
<Edited post: The source has been updated to 1.1.0 and is now maintained as an attachment to the first post in this thread.>
Post Edited (epmoyer) : 5/28/2007 3:14:11 PM GMT
Oldbitcollector
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The comments and code above are proof that a million monkeys with a million propeller chips *could* write Shakespeare!
Are you going to finish up spacewar! ? Or it the 17 version as done as its going to get?
Andre'
With that in mind....
I've converted the Liveplayer to work on my propeller board.. Very Cool! All the midi files included
work perfectly! ---but--- I've noticed when I attempt to load some movie themes (larger midi files)
into the HDMF Converter, I get the following error.
"Unhandled exception has occured in your application... If you Click.. blah blah
Index was outside the bounds of the array."
I'm pushing it further than it was intended. I'd like to use it to create a simple music player.
If you if want your code twisted.. I'm your guy.. [noparse]:)[/noparse]
Great work!
Oldbitcollector
Update: This thing really shines when applied to it's intended use.
Attached are a few SID to MIDI conversions that really work well
from some 80's video games. Wow
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The comments and code above are proof that a million monkeys with a million propeller chips *could* write Shakespeare!
Post Edited (Oldbitcollector) : 5/28/2007 4:37:47 AM GMT
I'll be releasing an update with music and the new start screens once I've finished putting together the music for it; I haven't touched it since I started working on HDMF. I'd also like to use it as a platform for doing full color with the E512K card if I can get a full color driver running fast enough.
Oldbitcollector,
Yes, I don't do dynamic memory allocation on the buffers used to build the song data and at present I don't even bounds check them (which was kind of an oversight). During development I just pushed the buffer sizes up and up until they were able to handle large songs and then I wasn't getting errors any more by the time I started tracking bugs. I'll post a running bug list shortly and track the open issues. You'll also find that the COM port box doesn't get handled properly when you resize the window.
"Please excuse the crudity of this model. I didn't have time to build it to scale or to paint it."
-Doc, Back to the Future
Perhaps, you could simply setup to sample from the beginning to wherever it runs out of space...
We have no excuses anymore for releases without sound and music! [noparse]:)[/noparse]
"It's Good"
Marty: BTTF
Oldbitcollector
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The comments and code above are proof that a million monkeys with a million propeller chips *could* write Shakespeare!
Transmitting song data to HDMF Live Player... Note: LivePlayer has a 7168 byte song data buffer. Sending 7165 of 20617 bytes... Send complete.The crash you are experiencing is from the app's internal buffers overflowing.
I have started a bug list in the first posting on this thread and I will work through the open issues periodically. I'll also maintain the latest release in the first posting of this thread.
The file is available from the first posting in this thread.
Feature Request...
How about one (or more) instruments in the Configuration screen which allow setting of
the envelope controls, attack, delay, sustain, and release? This would allow
unlimited instruments to be created. You could control the input values to
valid ranges with 4 pulldowns.
Oldbit
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The comments and code above are proof that a million monkeys with a million propeller chips *could* write Shakespeare!
The envelope control's are a straight hand off to Nick's sound driver, and Nick's driver implements an 8 stage ADSR-ish envelope. The first cut at allowing user envelope entry will be to just allow user input in the combo box, and allow you to type your own 32 bit hex value there. The only reason I didn't add it yet is that I didn't want to eat the time to implement the necessary error checking on the user input.
plays great, had my 4 year old daughter wanting to hear more midi's, so had to go googling lol
Cheers
Baggers.
Well done on this project! I've been hard at it with DK these last few days so I haven't really had a chance to explore HDMF. But now I'm going to make some time. I have already read the manual though, and that's an impressive bit of work. Amazing to have done so much in so little time.
Unfortunately the program crashes with some midis [noparse]:([/noparse]
Like these:
http://www.midishrine.com/index.php?id=132
I found the problem and have a fix. Needs some regression testing before I post it and I don't have time to adequately test it now, but I have quickly verified that it fixes the problem you were seeing and still works with a bunch of old files.
The MIDI's on the page you posted have an extra byte in their MTRK (i.e. Track) chunks AFTER their final "End of Track" event. As near as I can tell that is a violation of the MIDI spec, but in any case its not hard to code around. I added a patch to skip over any data after the "End of Track" event and that fixes the problem.
PM me your email address and I'll send you version 1.2.0 to try out before it goes public.
BTW, with regards to HAM, I've·fixed the issue with adding an asset that's as big as the EEPROM.·· I'm going to try and add the variable EEPROM size and call that 1.07
Thanks Epmoyer...
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Living on the planet Earth might be expensive but it includes a free trip around the sun every year...
Experience level:
[noparse][[/noparse] ] Let's connect the motor to pin 1, it's a 6V motor so it should be fine.
[noparse][[/noparse] ] OK, I got my resistors hooked up with the LEDs.
[noparse][[/noparse]X] I got the Motor hooked up with the H-bridge and the 555 is supplying the PWM.
[noparse][[/noparse] ] Now, if I can only program the BOE-BOT to interface with he Flux Capacitor.
[noparse][[/noparse] ] I dream in SX28 assembler...
/Bamse
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Aka: CosmicBob
This is such an awesome and COMPLETE tool set for using MIDI in prop projects, I know almost nothing about MIDI (except that its a music file format) but I was able to convert one to BYTE Declarations and play it from within a project on a demo board I'm working on within 5 minutes.
The community owes you one!
Rick
I've got a problem using the Application suite. I am uploading the live player binary on a protoboard (wish nick's driver was available) and then trying to connect live using the HDMF Application. I receive a wrong response msg for a couple of attemts and then a no repsonse one.
Does anyone have an idea what's wrong? What i want to do is test how the propeller would work as a standalone midi player before buying a hydra (i only need the sound driver [noparse]:([/noparse] ).
What exactly have you done, and what exactly are the messages you get?
I have uploaded EPM_HDMF_Live_Player_010.eeprom on a protoboard. I then start the HDMF translator, load a midi file from the examples, set the right port and hit send to Live Player (all options unchecked).
What I get is:
Making HDMF data set... Song will be constrained to use no more than 6 channels. Total HDMF song size: 427 bytes. HDMF Data set complete. Transmitting song data to HDMF Live Player... Sending 427 bytes... Err: Unexpected data receieved from live player. Transmission aborted.and the second (or third) time i get:
any ideas?
There's also this thread, in which I play around with the same sound driver that HDMF uses: http://forums.parallax.com/showthread.php?p=774500
I would greatly appreciate it if you could post some recordings of the driver playing midi files. What I am looking for is a showcase of what that chip can do, not just a tune. But, really, whatever you've got [noparse]:)[/noparse]
Thanks a lot mpark and btw CHADsynth is awsome, post more videos.
If you liked CHAD synth, check out Rainbow synth: http://forums.parallax.com/showthread.php?p=777004