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Das tttool hat jetzt eine deutsche Webseite für Anwender: http://tttool.entropia.de/
The goal of this project is to understand the file and paper format for the Ravensburger TipToi pen. The ultimate goal is that everyone can create their own books, with their own sounds.
The current status is that we understood most of the file format (see the GME file format specification). We provide a tool that allows you to dissect these files.
The tool can also be used to generate completely new files from scratch; see below for details.
If you want to learn more please have a look into our wiki (https://github.com/entropia/tip-toi-reveng/wiki).
The tttool tool
Use the tool
tttool to investigate the gme files and build new ones. It
supports various subcommands:
GME creation commands: assemble creates a gme file from the given source OID code creation commands: oid-table creates a PDF file with all codes in the yaml file oid-codes creates PNG files for every OID in the yaml file. oid-code creates PNG files for each given code(s) GME analysis commands: info Print general information about a GME file export dumps the file in the human-readable yaml format scripts prints the decoded scripts for each OID script prints the decoded scripts for a specific OID games prints the decoded games lint checks for errors in the file or in this program segments lists all known parts of the file, with description. segment prints the decoded scripts for a specific OID explain print a hexdump of a GME file with descriptions holes lists all unknown parts of the file. rewrite parses the file and reads it again (for debugging) GME extraction commands: media dumps all audio samples binaries dumps all binaries Simulation commands: play interactively play a GME file
to learn about global options (e.g. DPI settings), and
./tttool command --help
for the options of the individual command.
This program is written in Haskell and can be installed on Windows, MacOS or Linux.
For Windows users, we create zipfile containing
tttool, you can find them in
the releases section of
the github project.
Otherwise, installation from source is not difficult either:
If you have not done so yet, fetch the source code and change to the directory containing the code:
git clone https://github.com/entropia/tip-toi-reveng.git tttool cd tttool
Install the Haskell platform, see http://www.haskell.org/platform/ for details for your system. Users of Debian or Ubuntu simply run
apt-get install haskell-platform
Install the development packages for ncurses, i.e.
apt-get install libncurses5-dev
Install the Haskell dependencies. The Haskell platform comes with a tool called
cabal, and you should run the two commands
cabal update cabal install --only-dependencies
Now you can build the program using
cabal install --bindir=.
At this point,
tttoolshould be ready to go. If you run
you should see the list of commands shown above.
If you have any problems, you can report an issue via GitHub.
Building your own gme files
Once you have installed
tttool, you can create your own
.gme files. The
process is as follows
Record the audio samples you want to include, as Ogg Vorbis files, mono, 22050Hz. I use
arecord -r 22050 foo.wav oggenc foo.wav rm foo.wav
my-book.yamlfile containing some general information, and especially the scripts (i.e. what to do) for each OIDs (i.e. the various fields of a book). You can use the example.yaml file as a starting point; it contains more information in its comments.
./tttool assemble my-book.yaml, and make sure it reports no error, i.e. finishes silently.
Copy the now generated
my-book.gmeto your TipToi pen and enjoy!
If you need to find out what OID code corresponds to what part of the book, you
can generate a debug gme using the
debug.yaml file, adjusting its
Product-Id to your product’s id, building it with
./tttool assemble debug.yaml and loading the resulting
debug.gme on your pen. It will then
read out the codes, as a sequence of english digits.
If you want to convert existing audio files of almost any format, and you have
ffmpeg installed, you can use
ffmpeg -i input-audio-in-some.fmt -ar 22050 -ac 1 foo.ogg
Text to speech
If you have
vorbis-tools installed, you can have tttool
generate audio files from text for you, which makes developing your yaml file
much easier. See text2speech.yaml for more information.
Printing your own books
With the code in this repository, you can create GME files. This is even more fun if you can also create your own books! „Pronwan“ found out how that works, as you can see in this video demonstration. He also published 30 minute video tutorial (in German).
- tiptoi hacking by Guido Arnold
- TipToi Hacking and TipToi Hacking II by Mr. Blog
- Various posts by Joachim “nomeata” Breitner (the main author of
- Self-made animal figures demonstration video
- What are all the header fields? (See wip/Header.md)
- Finish decoding the games. (See wip/games.txt)
- What is the purpose of the additional script table?
Other resources in this repository
oid-decoder.htmlallows you to manually decode an OID image.
scripts/updates.shdownloads all gme files from the Ravensburger server.
libtiptoi.cis an alternative tool to investigate gme files. It can also replace audio files in gme files; compile and run it for diagnostic output.
Audio/contains some audio files, such as digits read out.
docs/collects information about TipToi found elsewhere.
matlab/contains scripts to analyse gme files in Matlab
wip/(work in progess) contains notes about the parts of the gme files that are not fully understood yet.
perl-toolscontains a perl based script, to generate a PDF with all OID codes from a yaml-file as well some functions to generate PNG-files, inject pHYs-chunks with resolution hints into GD generated PNG files as result from some testing