Just Solve the File Format Problem - User contributions [en]

OpenSCAD

2024-02-16T01:02:48Z

DavidCary: link to related articles

{{FormatInfo
|subcat=3D and CAD/CAM Models
|extensions={{ext|scad}}
}}

'''OpenSCAD''' is a scripting language for describing [[ 3D and CAD/CAM Models | 3D CAD models]]. The program to interpret it is free and open-source. It makes use of [[DXF]], [[STL]], and [[OFF (Geomview Object File Format)|OFF]] files for raw object data used in building more complex objects through scripting.

== Links ==
* [http://www.openscad.org/ Official site]
* [http://en.wikibooks.org/wiki/OpenSCAD_User_Manual User manual]

Engineering

2024-02-15T00:28:02Z

DavidCary: link to related articles

{{FormatInfo
|formattype=electronic
|thiscat=Engineering
|image=Black-and-white-engine-gears.jpg
}}
(See also [[Scientific Data formats]], [[3D and CAD/CAM Models]])

== Data storage and display ==
* [[HOOPS Stream File]]
* [[Modal Neutral File]] (MSC.ADAMS) (.mnf)

== Electrical engineering ==
* [[Intermediate Data Format]]
* [[KiCad]]
* [[OrCAD]]

Dolby TrueHD

2023-05-19T02:29:43Z

DavidCary: mention yet another file extension, with reference.

{{FormatInfo
|formattype=electronic
|subcat=Audio and Music
|extensions={{ext|thd}}, {{ext|mlp}}
}}

== Description ==

Dolby TrueHD is a proprietary lossless audio codec developed by Dolby Laboratories for use in multimedia, particularly high-definition formats such as [[Blu-ray Disc|Blu-ray]] (for which it is an optional format) and [[HD-DVD]]. It is designed to support up to 16 discrete channels, although according to the official page currently supports 8 channels at 96kHz/24-bit or 6 at 192kHz / 24-bit audio. As well as the audio data, TrueHD streams can also carry metadata. It uses the proprietary [[Meridian Lossless Packing]] algorithm for compression.

== Information ==

* [http://www.dolby.com/uploadedFiles/Assets/US/Doc/Professional/TrueHD_Tech_Paper_Final.pdf Dolby® TrueHD Audio Coding for Future Entertainment Formats]
* [http://www.dolby.com/uploadedFiles/Assets/US/Doc/Professional/Dolby_TrueHD_Encoder_WhitePaper_web.pdf Dolby® TrueHD Encoder with Advanced 96k Upsampling]
* [http://www.dolby.com/uploadedFiles/Assets/US/Doc/Professional/Dolby%20TrueHD_Lossless_Audio_Performance.PDF.pdf Elevating the Performance of Lossless Audio in the Home Theater: Dolby® TrueHD with Advanced 96k Upsampling]
* [http://wiki.multimedia.cx/index.php?title=Dolby_TrueHD MultimediaWiki - TrueHD]

"Dolby TrueHD files use the .mlp file extension."
-- [https://developer.dolby.com/globalassets/technology/dolby-truehd/dolbytruehdhighlevelbitstreamdescription.pdf "Dolby TrueHD (MLP) high-level bitstream description"]

== Software ==

* [http://www.dolby.com/us/en/professional/software/bluray-and-dvd-content-creation/dolby-media-encoder-server.html Dolby Media Encoder Server] (commercial, Mac OSX)

== Links ==

* [http://www.dolby.com/gb/en/consumer/technology/home-theater/dolby-truehd.html Official page]

Meridian Lossless Packing

2023-05-19T02:28:48Z

DavidCary: link to related articles, add references, etc.

{{FormatInfo
|formattype=electronic
|subcat=Audio and Music
}}

Meridian Lossless Packing (MLP) is a lossless audio compression algorithm.
MLP is used by [[Dolby TrueHD]].

MLP/TrueHD can be played by [[VLC]].

* [http://wiki.multimedia.cx/index.php?title=Lossless_Predictive_Audio_Coding MLP page on Multimedia Wiki]
* [http://wiki.multimedia.cx/index.php/Meridian_Lossless_Packing Meridian Lossless Packing page on Multimedia Wiki]
* [http://en.wikipedia.org/wiki/Meridian_Lossless_Packing "Meridian Lossless Packing" page on Wikipedia]
* [http://archive.org/details/MlpLosslessEncodedSurroundSoundFiles "MLP Lossless Encoded Surround Sound Files" by Kelly Industries on Archive.org]

MLP

2023-05-19T01:53:03Z

DavidCary: DavidCary moved page MLP to Meridian Lossless Packing: spell out name (leaving redirect from acronym), so Dolby TrueHD points to the correct article.

#REDIRECT [[Meridian Lossless Packing]]

Meridian Lossless Packing

2023-05-19T01:53:03Z

DavidCary: DavidCary moved page MLP to Meridian Lossless Packing: spell out name (leaving redirect from acronym), so Dolby TrueHD points to the correct article.

{{FormatInfo
|formattype=electronic
|subcat=Audio and Music
}}

* [http://wiki.multimedia.cx/index.php?title=Lossless_Predictive_Audio_Coding MLP page on Multimedia Wiki]

OrCAD

2022-12-02T00:22:06Z

DavidCary: list file formats used by OrCAD, etc.

{{FormatInfo
|subcat=3D and CAD/CAM Models
|extensions={{ext|opj}} {{ext|dsn}} {{ext|brd}} {{ext|dra}} {{ext|mdd}}
}}

OrCAD is a proprietary collection of software for electronic design automation (EDA).

OrCAD's integrated development environment (IDE)
focuses on tools for
schematic capture, PCB layout,
and generating files from them in the standard for manufacturing PCBs --
[[Gerber format]] and [[Excellon drill format]].
It also has tools to create a bill of materials (BOM),
do design rule checking (DRC),
run SPICE simulation,
develop FPGA firmware,
etc.

Other EDA software comparable to OrCAD:
[[KiCad]]
[[gEDA]]
[[EAGLE]]

The free "OrCAD Viewer" is two applications:
"Capture Viewer" is a free viewer for schematics in OrCAD format (".opj" and ".dsn" extensions).
"PCB Editor Viewer" is a free viewer for
PCB layouts in OrCAD format (".brd", ".dra", and ".mdd" extensions).

== Further reading ==

official site: [FIXME:]

OrCAD Viewer: https://www.parallel-systems.co.uk/wp-content/uploads/2022/01/Free-Viewers.pdf

[[Category:Software]]
[[Category:3D and CAD/CAM Models]]
[[Category:Graphics]]

KiCad

2022-12-02T00:09:23Z

DavidCary: list file formats used by KiCad, etc.

{{FormatInfo
|subcat=3D and CAD/CAM Models
|extensions={{ext|kicad_sch}} {{ext|kicad_pcb}} {{ext|kicad_sym}} {{ext|kicad_mod}} {{ext|kicad_wks}}
}}

KiCad is a cross-platform, free and open-source collection of software for electronic design automation (EDA).

KiCad's integrated development environment (IDE)
focuses on tools for
schematic capture, PCB layout,
and generating files from them in the standard for manufacturing PCBs --
[[Gerber format]] and [[Excellon drill format]].
It also has tools to create a bill of materials (BOM),
do design rule checking (DRC),
view Gerber files,
view 3D models of the PCB and its components,
run SPICE simulation,
etc.

Unlike most CAD software
(and, more specifically,
unlike most EDA software),
which save files in some unreadable binary format,
KiCad's file formats
are more-or-less human-readable UTF-8 text formats.

As of 2022, current versions of KiCad produce files with these file extensions:
* ".kicad_sch": a schematic sheet, typically containing many symbols and the connections between them.
* ".kicad_sym": ("symbol") single-symbol (or multi-symbol?) library
* ".kicad_pcb": an entire PCB layout, generally containing many footprints and the connections between them
* ".kicad_mod": ("module") single-footprint library
* ".kicad_wks": work sheet file

Some pre-2014 versions of KiCad produced files with these file extensions:
* ".sch": schematic sheet
* ".lib": schematic symbol
* ".brd": ("board"): an entire PCB layout

Other EDA software comparable to KiCad:
[[gEDA]]
[[EAGLE]]
[[OrCAD]]

Other kinds of CAD software that, like KiCad,
store files in more-or-less human-readable text:
[[OpenSCAD]]

== Further reading ==

official site: http://www.kicad.org/

file-format details: https://dev-docs.kicad.org/en/file-formats/

[[Category:Software]]
[[Category:3D and CAD/CAM Models]]
[[Category:Graphics]]