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patrick99e99

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About patrick99e99

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    Space Invader

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  • Gender
    Male
  • Location
    Los Angeles, CA
  • Interests
    Classical piano, classic arcade games
  1. This can already be done by simply turning on "Override pitch" and setting it to 0. ... I think a Cybermen style effect could easily be done just by applying a custom pitch envelope, which is something I plan to add to this at some point... but just by doing Override pitch with a value like 100 sounds pretty close.. The main difference is in that audio clip you provided, there is a resonant filter thats opening and closing throughout the speech.
  2. Ah! Sorry.. Ok I was only testing saving after loading .lpc files... I found the bug, fixed it, and have updated the code & prebuilt binary. Let me know if you have any other issues, problems, or requests.
  3. Can you give me a step-by-step example of this problem so that it is reproducible? I just tried saving a .lpc and .bin file and both worked fine over here... As far as the frequency spectrum, I am not at all surprised.. I did an extremely quick & dirty approach of outputting the tms5220's 8khz audio to the system output at 48khz by doing a zero-order hold (repeating the signal's value 6 times for every sample) rather than doing proper interpolation... There's much improvement that could be done quality-wise.
  4. Ok, I just updated the code again, it now can read .bin files, and under the file menu is a Save LPC Byte Stream option, if you give the output file an ".lpc" or ".txt" extension, it will be a comma delimited text file. However, if you give it a ".bin" extension, it will save it as a raw data format. Btw, your breadboard looks awesome.
  5. I just updated the code and prebuilt binary on github, with the following improvements (v 1.3.0): - Adds file menu option to save TMS5220 output as an .aif file - Adds file menu option to load LPC byte stream files (in either 12,34 or 0x12,0x34 format) as an alternative to pasting them in from the clipboard. (the project has an LPC directory with tons of lpc from Gauntlet so those can now easily be loaded and played). - Allows byte streams to be played / pitch manipulated without requiring an input audio file signal being loaded. - Fixes bug where speed changes did not update total number of samples in output buffer - Fixes bug where byte streams were getting messed up due to the unvoiced threshold parameter being set - Adds "raw excitation filter" option so you can hear the TMS excitation filter on its own. - Changes appearance of byte stream text so that it's blue on black background.
  6. Thank you, I am glad you are enjoying BlueWizard. I went ahead and added two checkbox options to the UI, one for adding the 0x prefix, and the other for appending the stop frame. I have updated the github repo with the code changes as well as a new pre-built binary. Let me know if you have any problems.
  7. Yeah, as of right now it doesn't save files, but rather just gives you the byte stream to feed to the tms5220... I will try to add a save feature sometime. If you notice in the project there's actually an Output.m file which I created with plans for saving the audio, I just never got around to hooking it up to the UI. The inspect button is supposed to open a large waveform view, but I noticed that was somehow broken. I just fixed it and pushed up those changes and also updated the binary in the disk image, so if you pull down the latest you'll have that fix. The K's are the bins that represent the different parts of the human vocal tract. So those values can be edited manually if you know what you're doing. I intend to make the interface more user friendly for editing at some point, but my focus has been on NoteBlaster so like I said, once I got this program to the point where I could actually process the speech I needed for my game, that's where I stopped the development of BlueWizard... But I would like to polish it up and make it much better at some point.
  8. Actually, when I started the project, I did it in Ruby-- but it turned out to be too much of a pain to communicate between the ruby program and the TMS5220 emulator, so I rewrote it in objective-c and then took advantage of being able to build a UI for it. The ruby program can be run on any platform (linux, windows), It just has no UI, so you can't edit frames or hear the generated speech. You will have to take the hex dump the program generates and send that to a TMS5220. If that would be useful, I can update that project and share it as well.
  9. Several years ago, I started creating a music educational video game called NoteBlaster for iOS. From the beginning one of the things I wanted NoteBlaster to have was a very "Atari" vibe. I wanted it to have a retro arcade graphics style, I wanted it to have FM synthesis music, and I wanted it to have TMS52220 speech synthesis. Once I got to the point in development where it was time to start thinking about how I was going to get TMS5220 speech, I started a thread here --> http://atariage.com/forums/topic/218272-trying-to-generate-some-ti99-speech/ I spent a great deal of time trying to use QBox Pro, but despite my best efforts, the speech I generated was less than desirable. Eventually I gave up on QBox Pro, and believed it was hopeless, my game would simply not be able to have the high quality Atari coin-op reminiscent speech that I so badly wanted. At that moment, a friend of mine encouraged me not to give up, and he looked up the Speak & Spell toy on wikipedia and found the name of the person who worked at Texas Instruments at the time that was responsible for the algorithms used... Richard Wiggins. I figured, ok-- what have I got to lose? I picked up the phone and called various places trying to track him down, and eventually found him. I told him I was creating a music video game, and asked if he could help supply me with the information about how TI's portable speech lab system (which is what Atari Games actually used for their speech processing) actually worked to generate linear predictive code for TMS5220 chips. Richard agreed, and we had many phone conversations involving concepts of digital signal processing, autocorrelation, pre-emphasis filtering, chebychev filter poles, a to k conversions, pitch analysis, etc. He sent me hand written notes involving math equations, illustrations, and photo copies of pages from text books that he had on the subject. Finally, a good six months later, I had a Mac OS X desktop application that could analyze an 8khz 16-bit waveform and turn it into an LPC byte stream that could be fed to the TMS5220 chip and it sounded as good as the speech in all of Atari's arcade games. It was incredibly exciting! Around that time, I reached out to one of the MAME core developers, Jonathan Gevaryahu (aka Lord Nightmare), and he helped fine tune a handful of things on both the desktop analysis app side and also the actual TMS5220 emulation code. I am very grateful for all of his help. Once I had the capability to generate the high quality speech that I desired, it was time to go back to the remaining development work in my video game. I then reached out to Ernie Fosselius, who if you are not aware, was the voice over actor that did the all of the dialog for the Atari Gauntlet and Gauntlet II arcade games. I told him about the video game I was creating and asked if he would like to be a part of it, and he agreed to do all of the voice over work for NoteBlaster. BlueWizard, my Mac OS X application for processing speech files is available on github: https://github.com/patrick99e99/BlueWizard If you don't want to build it from source yourself, there is a prebuilt OS X binary in a disk image found in the "Build" folder found at the root of the project. At some point, I plan to enhance the software by adding more functionality to make editing speech frames more friendly, but this was sort of a quick-and-dirty first pass just so I could get all the synthetic speech for NoteBlaster generated. Also, as a demonstration, I took the original CES audio file that was demonstrated with QBoxPro and here is what it sounds like from BlueWizard processing it: http://collinatorstudios.com/projects/bluewizard/ces-processed.mp3 As a final note, if anyone here is interested in getting good at reading music, or has friends or loved ones that would be interested, then please help spread the word about NoteBlaster! I posted a thread announcing it here: http://atariage.com/forums/topic/260862-atari-games-inspired-music-educational-video-game-noteblaster-is-out/ Thank you. -Patrick p.s. attached are some of the notes Richard Wiggins from Texas Instruments sent to me
  10. Hi everyone, So-- when you add a phrase to your concatenations-- it gives you this window with lovely configuration options for robotic / whisper / speed / pitch.. And I found that, the LPC data that you generate under "Format" does not actually apply any of those configurations. Does anyone know of a way to get LPC data that reflects those changes? -patrick
  11. Did you happen do any of this pitch error correction on the LPC you used in your demo video? Do you have any tips for how to go about manually fixing pitches?
  12. Also-- do you happen to have that "CES" wav file handy still? I have been getting a lot of pitch errors when trying to convert my own samples, and so I would like to try comparing my audio to the CES one and see if EQing it similarly helps at all.
  13. So you think MESS will sound way better than what I currently am getting from win994a?
  14. So--- After making several audio files, I am curious how big of a sound quality difference there would be between using the emulator and an actual TI-99/4a. If I go the route of purchasing a TI-99, I have a couple of questions: 1. Am I going to be able to find an editor/assembler cartridge? I've been looking on ebay and don't see any currently. 2. Is there an easy way to transfer my LPC source files from my desktop computer to the TI-99? Has anyone made a usb interface? Thanks.
  15. HOORAY!!! Total success! I was able to make my own 8khz wav file and hear it as TI-99 speech! Thank you everyone for helping make this possible!!
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