Comments for Abort, Retry, Hack? http://marcansoft.com/blog [ marcan's blog ] Wed, 09 May 2012 16:23:36 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on Enabling Intel VT on the Aspire 8930G (and other InsydeH2O-based laptops) by RichardK http://marcansoft.com/blog/2009/06/enabling-intel-vt-on-the-aspire-8930g/comment-page-11/#comment-68312 RichardK Wed, 09 May 2012 16:23:36 +0000 http://marcansoft.com/blog/?p=71#comment-68312 also thanks in advance for any response what I feel is these new laptops by these vendors are suspect because many of the advertised processor speeds and features are apparently disabled via bios on system boards so that one never really experiences the full benefits of the newer processor speeds and functionalities can anyone ellaborate on this. Also if there is any looming class action suits being filed also thanks in advance for any response what I feel is these new laptops by these vendors are suspect because many of the advertised processor speeds and features are apparently disabled via bios on system boards so that one never really experiences the full benefits of the newer processor speeds and functionalities can anyone ellaborate on this. Also if there is any looming class action suits being filed

]]> Comment on Enabling Intel VT on the Aspire 8930G (and other InsydeH2O-based laptops) by RichardK http://marcansoft.com/blog/2009/06/enabling-intel-vt-on-the-aspire-8930g/comment-page-11/#comment-68311 RichardK Wed, 09 May 2012 16:10:24 +0000 http://marcansoft.com/blog/?p=71#comment-68311 On the insyde bios version 17 for the amd 8 based HP laptop version dv7-6c20us is there any way to unlock the hidden advanced option in the bios it seems absurd not to be able to allocate memory or any other adjustments on a laptop one purchases On the insyde bios version 17 for the amd 8 based HP laptop version dv7-6c20us is there any way to unlock the hidden advanced option in the bios it seems absurd not to be able to allocate memory or any other adjustments on a laptop one purchases

]]> Comment on OpenLase hardware and simulator by Skappy http://marcansoft.com/blog/2011/01/openlase-hardware-and-simulator/comment-page-1/#comment-68285 Skappy Fri, 20 Apr 2012 08:03:00 +0000 http://marcansoft.com/blog/?p=324#comment-68285 Sorry to have disturbed you David Everything seems to be ok now concerning the modification of limits.conf. One more step forward ! Sorry to have disturbed you David

Everything seems to be ok now concerning the modification of limits.conf.

One more step forward !

]]> Comment on OpenLase hardware and simulator by Skappy http://marcansoft.com/blog/2011/01/openlase-hardware-and-simulator/comment-page-1/#comment-68283 Skappy Thu, 19 Apr 2012 06:37:06 +0000 http://marcansoft.com/blog/?p=324#comment-68283 Hi David, Thank you very much for your help. The simulator is now running fine, I'm just trying to connect the USB sound-card in order to test Openlase in real condition but as I'm a newbie in Ubuntu I'm encountering problem with the limits.conf file. I can not save the modified files, the "save" option is disabled. I've try to cut and paste the file but it also doesn't work. I do not know how to change the status of the user in Ubuntu. I think that only admin or super user could save the modification. Do you have any idea ? Thank you very much Have a nice day Hi David,
Thank you very much for your help.
The simulator is now running fine, I’m just trying to connect the USB sound-card in order to test Openlase in real condition but as I’m a newbie in Ubuntu I’m encountering problem with the limits.conf file. I can not save the modified files, the “save” option is disabled. I’ve try to cut and paste the file but it also doesn’t work. I do not know how to change the status of the user in Ubuntu. I think that only admin or super user could save the modification.
Do you have any idea ?
Thank you very much
Have a nice day

]]> Comment on OpenLase: open realtime laser graphics by James http://marcansoft.com/blog/2010/11/openlase-open-realtime-laser-graphics/comment-page-2/#comment-68280 James Sat, 14 Apr 2012 18:49:17 +0000 http://marcansoft.com/blog/?p=241#comment-68280 Inexpensive 6 and 8 channel sound devices, designed to reproduce Dolby 5.1 and 7.1 didn't even exist until the early to mid 2000s. I remember I had to do a lot of research to find PCI cards that could be modified. I had already started on the development of my code before I ever had a real hardware device that could play 6 channels. 8 channels came after that. LaserBoy is the first application ever that can produce all of the signal information needed to display a full color laser show with stereo audio, using a single, inexpensive, modified sound device. It was specifically created to be an enhancement to the idea of using an ADAT machine; but to do it entirely in the software domain. With the development and deployment of LaserBoy and its related technology came a set of standards for both hardware and software. There is the correlation of signals to track numbers and an extensive and feature rich set of extensions to the RIFF WAVE file format, making it a complete answer for both display-ready information and a laser art storage format with end-of-frame, unique-frame, color-to-scanner time offsets and many other features. There is also at least one driver that makes a LaserBoy DAC a live display device that many laser show applications can now use just like any other proprietary laser display device. A number of these applications can save their output streams as wave with the LaserBoy extensions, that can be opened in LaserBoy and converted back into the original, framed color vector art from which they came. Some of the free apps out there can only save their output as LaserBoy formatted waves. All of this came from LaserBoy and the proof it provided that these things could be done. Inexpensive 6 and 8 channel sound devices, designed to reproduce Dolby 5.1 and 7.1 didn’t even exist until the early to mid 2000s. I remember I had to do a lot of research to find PCI cards that could be modified. I had already started on the development of my code before I ever had a real hardware device that could play 6 channels. 8 channels came after that.

LaserBoy is the first application ever that can produce all of the signal information needed to display a full color laser show with stereo audio, using a single, inexpensive, modified sound device. It was specifically created to be an enhancement to the idea of using an ADAT machine; but to do it entirely in the software domain.

With the development and deployment of LaserBoy and its related technology came a set of standards for both hardware and software. There is the correlation of signals to track numbers and an extensive and feature rich set of extensions to the RIFF WAVE file format, making it a complete answer for both display-ready information and a laser art storage format with end-of-frame, unique-frame, color-to-scanner time offsets and many other features.

There is also at least one driver that makes a LaserBoy DAC a live display device that many laser show applications can now use just like any other proprietary laser display device.

A number of these applications can save their output streams as wave with the LaserBoy extensions, that can be opened in LaserBoy and converted back into the original, framed color vector art from which they came. Some of the free apps out there can only save their output as LaserBoy formatted waves.

All of this came from LaserBoy and the proof it provided that these things could be done.

]]> Comment on OpenLase hardware and simulator by David http://marcansoft.com/blog/2011/01/openlase-hardware-and-simulator/comment-page-1/#comment-68279 David Thu, 12 Apr 2012 07:50:00 +0000 http://marcansoft.com/blog/?p=324#comment-68279 @Marcan advised me to change the 'Audio' setting in QjackCtl to Playback Only, and it worked. Here is my working configuration http://i.imgur.com/sSoHL.png @Marcan advised me to change the ‘Audio’ setting in QjackCtl to Playback Only, and it worked. Here is my working configuration http://i.imgur.com/sSoHL.png

]]> Comment on OpenLase: open realtime laser graphics by marcan http://marcansoft.com/blog/2010/11/openlase-open-realtime-laser-graphics/comment-page-2/#comment-68277 marcan Mon, 09 Apr 2012 03:17:59 +0000 http://marcansoft.com/blog/?p=241#comment-68277 Sound cards have been used for laser display on Amiga computers way earlier: http://web.archive.org/web/20001025063833/http://www.midwest-laser.com/html/computer_controlled_laser_show.html The LaserBoy amp is cool, but it wasn't the first to come up with the idea of using a sound card as a DAC, nor is it the only possible design, nor are all designs based on it (though many certainly are). For example, as far as I know, the LaserBoy Correction Amp doesn't do any monitoring like mine does (i.e. if the software crashes and the sound card device is closed, some sound cards will hold their outputs at their previous level, potentially leaving the laser static at full power resulting in a hazardous situation). I did try LaserBoy (the software) early on before starting to work on OpenLase, but I wanted to do realtime rendering and I also wanted an SVG converter for non-realtime use, which were things that it couldn't do. That's why I started working on my own software. Sound cards have been used for laser display on Amiga computers way earlier: http://web.archive.org/web/20001025063833/http://www.midwest-laser.com/html/computer_controlled_laser_show.html

The LaserBoy amp is cool, but it wasn’t the first to come up with the idea of using a sound card as a DAC, nor is it the only possible design, nor are all designs based on it (though many certainly are). For example, as far as I know, the LaserBoy Correction Amp doesn’t do any monitoring like mine does (i.e. if the software crashes and the sound card device is closed, some sound cards will hold their outputs at their previous level, potentially leaving the laser static at full power resulting in a hazardous situation).

I did try LaserBoy (the software) early on before starting to work on OpenLase, but I wanted to do realtime rendering and I also wanted an SVG converter for non-realtime use, which were things that it couldn’t do. That’s why I started working on my own software.

]]> Comment on OpenLase: open realtime laser graphics by James http://marcansoft.com/blog/2010/11/openlase-open-realtime-laser-graphics/comment-page-2/#comment-68276 James Sun, 08 Apr 2012 14:55:05 +0000 http://marcansoft.com/blog/?p=241#comment-68276 Not naive. Just history. Of the two most popular kits for the amp, I did the layout for one and tech supported the design of the other. They are both based on the design that has been posted since early 2005. Not naive. Just history. Of the two most popular kits for the amp, I did the layout for one and tech supported the design of the other. They are both based on the design that has been posted since early 2005.

]]> Comment on OpenLase: open realtime laser graphics by marcan http://marcansoft.com/blog/2010/11/openlase-open-realtime-laser-graphics/comment-page-2/#comment-68275 marcan Sat, 07 Apr 2012 22:43:36 +0000 http://marcansoft.com/blog/?p=241#comment-68275 It's worth pointing out that my projector isn't based on the LaserBoy design (in fact it doesn't require any correction on the DAC outputs - the built-in input scale adjust on my galvos is sufficient to get a good scan angle with the +/-2.5V DAC output levels). The LaserBoy correction amp is cool and I recommend it for anyone who wants to interface with standard ILDA scanners, but I think suggesting that "the idea of using a modified sound card came from LaserBoy" and "all sound card correction amps are based on the original LaserBoy Correction Amp design" is a bit naive. As for OpenLase - sorry for not documenting it properly! It's definitely on my TODO list but it's hard to find some time to spend on it :(. @Sascha2612 Absolutely, feel free! It’s worth pointing out that my projector isn’t based on the LaserBoy design (in fact it doesn’t require any correction on the DAC outputs – the built-in input scale adjust on my galvos is sufficient to get a good scan angle with the +/-2.5V DAC output levels). The LaserBoy correction amp is cool and I recommend it for anyone who wants to interface with standard ILDA scanners, but I think suggesting that “the idea of using a modified sound card came from LaserBoy” and “all sound card correction amps are based on the original LaserBoy Correction Amp design” is a bit naive.

As for OpenLase – sorry for not documenting it properly! It’s definitely on my TODO list but it’s hard to find some time to spend on it :( .

@Sascha2612 Absolutely, feel free!

]]> Comment on OpenLase: open realtime laser graphics by James http://marcansoft.com/blog/2010/11/openlase-open-realtime-laser-graphics/comment-page-2/#comment-68274 James Sat, 07 Apr 2012 20:35:27 +0000 http://marcansoft.com/blog/?p=241#comment-68274 There is a project called LaserBoy that started in early 2004. That's really where the idea of using a modified sound card came from. All of the kits that make the sound card correction amp are derived from the original LaserBoy Correction amp design. We have a forum! http://laserboy.org/forum/ There you will find a lot of information about how to build a modified sound card, aka LaserBoy DAC. You will also find several applications that use this DAC model, including LaserBoy, that will compile and run in Windows, Linux and Mac OSX. It comes with a prebuilt Windows executable. There is a project called LaserBoy that started in early 2004. That’s really where the idea of using a modified sound card came from. All of the kits that make the sound card correction amp are derived from the original LaserBoy Correction amp design.

We have a forum! http://laserboy.org/forum/

There you will find a lot of information about how to build a modified sound card, aka LaserBoy DAC.

You will also find several applications that use this DAC model, including LaserBoy, that will compile and run in Windows, Linux and Mac OSX. It comes with a prebuilt Windows executable.

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