It’s been a long time since I’ve posted anything to our blog. Well, what can I say, not much is going on. Actually, since I rarely receive any comments, I assume very few people read this. So I haven’t put any time toward this.
Originally, I hoped that if a lot of people read about the development of our products and provided some feedback, we could use their comments to help direct our efforts. It would also show there was some demand for our products. One of the challenges any start-up deals with when talking with potential investors or lenders, is convincing them there is a market for their product. One way to do this is to hire a marketing firm to conduct surveys to try and estimate market demand. These sort of surveys might help show if a new health club at a particular location is viable after asking a series of questions to local residents. The more people you ask, the more accurate your results. If your geographic area is large, it becomes a bit more complex. Typically a well constructed marketing survey costs a lot of money. And we chose to spend our very limited funds on development. So, I was hoping the feedback from the blog would help. Well, maybe it has shown there is very little demand for the type of products we are working on.
We haven’t totally given up. There are a few interesting technical developments/improvements in the past few months that are promising. So we keep plugging away.
One of the class D amp / SMPS module manufacturers I’ve been watching is the Spanish company, Coldamp. The owner/designer’s name is Sergio Sanchez Moreno. Coldamp is one of the few companies that offer both an audio grade switching power supply (SMPS) and class D amplifier modules. The advantage to the SMPS, especially with a multichannel product, is the decreased weight and size. The challenge is to get them to sound as good as a linear supply. Sergio claimed Coldamp’s SMPS sounded better than linear supplies and several DIY’ers from the diyAudio forum supported this claim. They also claimed the Coldamp class D amps were comparable to Hypex’s highly regarded UCD amps. I don’t think anyone was suggesting that they were better. Just different, but in a positive way. Several DIY’ers were satisfied with using a combination of the Hypex UCD amps with Coldamp’s SMPS.
Anyhow, we are following the progress that all designers are making with both class D amps and SMPS development. Probably the most respected designer, Hypex’s Bruno Putzey, was just written up in IEEE Spectrum magazine. You can read the online version of the article here.
I have also noticed that our blog regularly gets several hits from people doing a Google search for Coldamp. So obviously there is some interest in their products that seem to direct traffic to our blog. Since we have a few posts announcing Coldamp’s products (see: Coldamp Plans to Offer 750W Class-D Amp Module), I felt obligated to update our readers with some disappointing news. The moderators of diyAudio have confirmed that Sergio was also signing on with another alias, named Pierre, claiming to be a happy Coldamp customer. It appears Sergio was using this alias on other websites as well. Most of the time, he was posting as just a very satisfied Coldamp user, sharing his experience with others looking for advice. As misleading as this may be, sometimes Pierre’s posts were basic design and engineering questions directed to the experienced engineer’s on the forum. These experienced engineers are particularly upset with this deception since they may have helped a potential competitor. They are also shocked that many of Pierre’s questions were so basic that it demonstrated a fairly elementary level of expertise with the technology. One experienced designer/engineer named JohnW, stated, “Reading back though the “Questions” posted as Pierre; some are at such a basic fundamental level that they should never have been asked by a competent designer already SELLING SMPS!” Another diyAudio forum member, Eva responds, “The main problem is not how a designer gathers the knowledge, it’s the fact that it’s completely unfair to advertise and sell your very first prototypes as if they were state-of-the-art class D and SMPS, when they are full of hidden pitfalls that you don’t know how to solve or don’t know about at all because you still have a lot to learn.”
Since this discovery, Sergio and his alias, Pierre have been banned from diyAudio’s forums. I’ve also noticed that Coldamp’s website is now down. So it appears they might be out of business. I think this is extremely unfortunate. Hopefully, Sergio and Coldamp can come straight and avoid a total collapse. Some of Coldamp’s customers have posted in the diyAudio thread that they are happy with their purchases and felt the service and support from Coldamp has been very good. They work and apparently many people say they sound great. The problem is with how they learned to build class D and SMPS products, and are they really going to be safe and reliable over the long term?
Here’s the diyAudio thread, in case you want to read more comments and judge for yourselves.
The best part is that technology continues to evolve into new dimensions and excels in all phases of transition. This technology is the audiovisual production. One area of work that has attracted the attention of all to the end and had a role in all the images you see around the world. TV or computer that we are so attached are all part of this mega avatar technology known as audio-visual production.
The audiovisual production is an extremely difficult task that depends on a lot of technical finesse and technical ability to work. It is also necessary in modern times that food is a human being, so there is no denying the fact that a company of audio visual production must always be at their best to maintain the delivery of work good quality public through the realms of time. Audio visual budgets are not what matters, but what you do with them is what really counts. You should know how to remove a good project, whatever the budget is that if you are a corporate audio visual production. This is where technology has really stepped forward and made life easier for people who do these projects to ensure they are huge when it was released.
Audio Visual are often used in business and also the work that covers all areas of life. Either engineering or sale of shares, or audio-visual technology is coming to the party all the time. Whether for seminars, lectures, demonstrations, sales proposals, audiovisuals are a major part of the operation and can not be transmitted correctly without the use of audiovisual resources, also known as AV, for short. Our world today is based on presentations to evaluate the quality of everything we sell, and therefore media productions have a great responsibility and shoulders so that people like this it is shown that they also appreciate the efforts.
audiovisual productions can easily be found all across the Internet and the Web world, as companies today, many are floating and are willing to compete with each other as well. The price and the cost of everything, it also depends on your needs, and once negotiated, you’re good to go on your project!
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Pre-Order “also “iTunes LP – links.emi.com Amazon UK – links.emi.com rest of the world – links.emi.com www.thechemicalbrothers.com interactive YouTube videos with exclusive audio downloads of the new addition incredible – United States “available on iTunes in the UK and as iTunes Pass in the LP.” Select your design by clicking on the box and be taken to your selected clip. To return to the menu screen at any time, click the menu button on the top left corner of the screen. Posted by Parlophone on 14 / June Astralwerks slotted Visual www.flatnosegeorge.com George Directed by Adam Smith and Marcus Lyall Black Dog Films Production Company
Related articles Audio Visual
In 2002 I was given the opportunity to visit the studios at SOUNDFIRM at FOX Studios in Sydney. The original tour was supposed to take about 20mins, but extended out to over 2 hours. I felt quite privileged to see behind the scenes of a THX certified audio post production facility that has turned out some pretty impressive soundtracks such as THE MATRIX and ROBOTS, so decided to re-visit the studio to discuss possible changes in the industry.
Main Dubbing Stage And Screen
You can not see the full console in this shot, but there is three multi-track mixing desks all linked. In 2002, I got to see the mixers at work. It was very interesting watching the automated slides moving whist the sound mixers added in more tracks. Note the extensive room treatments on the left.
The Mixers watch a digital projected image of the film and make their audio decisions based on what they feel is most appropriate for the on screen visuals. The screen is Acoustically Transparent and the LCR speakers are placed behind the screen for the best sound to image match.
The Back Of The Room
The seating at the back of the room is for the producers to view their work during post production. This stage uses surround arrays (Krix speakers) to emulate the sound heard in an actual cinema so that both producers and mixers will know how the film will sound during its exhibition run.
A New Age Mixing Console
This might just be the future of Multi channel audio. This console was designed by engineers that work in the facility and can be networked to pretty much every existing system in use today. The “arc” across the top is actually an LED display of the number of audio channels that this desk can mix.
FOX Studios sees the market potential for re-mixing film sound for the HD formats, and that work might very well be done on smaller scale studios using a console like this one.
I would like to thank Bruce Emery for his time and for allowing me to document my visit.
