Author: simonmackay

Articles

Google Nest video doorbell – to support season-specific custom sounds

Special Ringtones Coming to Your Google Nest Doorbell for Halloween, Diwali, Oktoberfest – CNET

More festive doorbell chimes arrive on Google Nest | ZDNET

From the horse’s mouth

Google

Learn how we fine-tune the Nest doorbell ringtones (blog.google)

My Comments

Desktop operating systems started using audio customisations since the late 1980s

From the late 1980s to the mid 1990s, regular computers and their desktop operating systems introduced various multimedia abilities including file-based audio recording and playback. This came along with various user-experience customisation options like background wallpapers and interface elements that can be set to a user’s preferred colours.

These functions came together in the form of the ability for users to determine what kind of sound the computer makes for particular events like the startup sound, error sound or new message notification.

This kind of customisability was extended in the 2000s with mobile phones supporting ringtone customisation including downloadable ringtones. This feature was seen as important as a way for people to know if it is their phone that is ringing when it rings.

But Google has added this kind of customisability to their Nest Doorbell which is a video doorbell that works via your home network and Internet. Here, they have started offering special ringtones for this product that people can use for particular occasions like Halloween, Thanksgiving or Diwali. This goes hand-in-glove with you decorating your house in particular ways for particular seasons.

These devices would support the seasonality of particular occasion thus allowing the customised sound to play for the duration of that occasion. This avoids the audible equivalent of leaving decorations up beyond the applicable season which can look tacky.

I most likely would see a lot of companies who sell network-connected doorbell / intercom systems start investing in ringtone customisations for these devices. This could include user-supplied ringtones usually in common audio file formats, enabling ringtones to be applicable for particular seasons or user-defined periods, or bringing in brands and talent to create custom ringtones.

You just never know what other “Internet-of-Things” devices and platforms will end up with user experiences that are customisable by the end-user in the same way that computers and smartphones have been customised by their users.

Article

Apple to lead the way with having smart lock and digital key management as part of a smartphone’s operating system.

Apple to add digital key sharing to iOS • NFCW

My Comments

Apple is the first mobile-operating-system developer to integrate the management of digital keys for buildings or cars within its iOS operating system. This includes the ability to share keys to others or revoke shared keys within your iPhone’s user experience.

It is because of an increasing number of security solutions for buildings, vehicles and the like that use your smartphone as a virtual keyring for digital keys.

Previously, what happened with digital keys was that they were dependent on apps specific to a vendor, hotel or similar smart-lock platform and you had to work these keys from that app’s user interface.

This could lead to confusion about apps that you need to use and can get very messy when you have multiple places to think of and you aren’t sure which platform they are associated with. It can also lead to screen clutter associated with the apps and you may find that they take up too much internal storage space especially if you are responsible for many places.

The approach now is to implement the digital wallet functionality offered by Apple Wallet and is part of iOS. As well, you use what the operating system offers to share out keys or revoke shared keys. That means you can use first-party messaging software like Apple iMessage or Apple Mail to share the keys; or you could use third-party messaging software like Signal, WhatsApp or Outlook Mail to share these keys.

Most likely this will be facilitated with the “share / take-further” function offered as part of the operating system, represented in iOS with a square and triangle symbol.

The problem with this functionality is whether there is the ability to limit the shared key’s functionality when you share it out. That is to limit the number of times one can use the key or the time period they can use it for, or even to limit the doors or cars that the particular digital key can open. In some cases, it may also be about implementing multi-factor authentication for these keys.

hen there is the question about what kind of interface that this Apple Wallet key-management ability will support. That is whether to use NFC “touch-and-go” operation, Bluetooth LE wireless-link or similar techniques to link with the door lock or car.

The other issue that will come about is whether Google will integrated this kind of digital key management within Android, whether as part of the digital wallets available as apps for that platform or simply within the operating system. Also it can be about whether regular computers that run desktop operating systems could have this kind of digital key management built in to their operating systems, which can be of benefit for people who manage buildings or vehicle fleets.

It can also include allowing apps and Websites to add or remove digital keys to the smartphone wallet. This will be seen as important for corporate, hotel and delivery use cases where interaction with smart locks is part of a transaction, such as registering the delivery / collection of goods or as part of a time and attendance requirement for home care and allied workers.

What this will be essentially about is to provide a one-stop shop for managing digital keys for locations or vehicles you are responsible for using your smartphone.

The Service Victoria QR-code contact-tracing system was one of those app-based QR code setups that may not work properly if your phone’s QR code recognition subsystem isn’t working

A situation that happened with my Android phone recently was that the Services Victoria QR code app failed to recognise a check-in QR code even though it has normally been doing that before. I had to then resort to entering the venue-specific manual-entry code printed below the QR code on the signage to begin the check-in process for that area.

This problem can also happen with something like WhatsApp, Signal or something similar when you are attempting to bind a desktop or other secondary client device to your service’s account. This also extends to Wi-Fi Easy Connect setups that allow you to enrol your phone or another device in to a desired Wi-Fi network.

It can also happen with book+app setups used with interactive books, second-screen apps that are part of interactive-TV setups, or some app-driven coupon systems that are dependent on recognising QR codes for their functionality. Even setting up app-based multi-factor or password-free authentication is dependent on QR codes when you are provisioning that mobile-based authentication app with an online service.

In use cases like WhatsApp, there may not be any alternative like a human-readable code or an NFC tag to use as an alternative to scanning a QR code. This would then make the app or function useless for its intended purposes.

The situation described here is that a QR-code-dependent app that was previously recognising QR codes for that associated system fails to recognise them.

But how did I troubleshoot this problem further?

A lot of these apps that have QR-code scanning functionality are dependent on functionality within iOS or Android that works with the camera to recognise these codes and make them useful for software on your phone. This is to avoid the need for the software developer to reinvent the wheel when it comes to adding this functionality to their apps.

.. as can setting up Signal or Whatsapp to work with your regular computer or iPad

But if this fails, the apps that depend on this functionality don’t perform as expected when you attempt to scan a QR code with them. This is even though they have enabled the camera and are passing through the vision to the app’s “viewfinder” window. Of course you might think that the rear camera’s lens is dirty or scratched or you are attempting to scan a poor-quality reproduction of the code.

One way to troubleshoot this kind of situation is to scan this kind of code with a dedicated QR-code scan app that is part of your phone’s operating system. Most Android users would have this as part of the Quick Settings menu. Here, this app has the camera behave in a manner optimised for scanning barcodes and QR codes as if it is called upon by one of these QR-dependent apps.

On some platforms, the Camera app’s QR-code recognition function may behave differently due to it using different in-app software from what is part of your phone’s operating system. This is due to the camera software working on a “photography first” approach rather than a “barcode scanning first” approach.

If this app fails to recognise any QR code, you are dealing with a situation where the software processes associated with QR-code recognition crashing or hanging. This situation may happen with other software on your phone underperforming or behaving in an abnormal manner. Here, you may find that it is a good idea to fully restart your phone, which will effectively get everything to a known point.

In this case, you would have to shut down then restart your phone so as to cause it to fully restart. You should see your phone’s manufacturer or operating system logo appear on the screen as part of the restart process.

After the phone is restarted completely, attempt to scan any QR code with the above-mentioned dedicated QR-code scan app that is part of your phone’s operating system. Usually that will succeed after you have restarted your phone due to the necessary software processes being restarted.

You may have also had to deal with a software update for the QR-code recognition software as part of a software-quality or security update for your phone’s operating system. It is typically to rectify any bugs or security exploits in the affected software or simply to “tune up” the software for better performance.

If that succeeds, attempt to scan the QR code using the app you had problems with so you can identify whether that app is at fault or not. It is also a good idea to check for new versions of this app by visiting your mobile platform’s app store and checking for software updates.

The need for a software update for that app may be due to the app’s developers re-engineering it to take advantage of newer QR-code-recognition software libraries, and may also have to apply for any QR-code-dependent apps on your phone. It is although the revised software libraries are most likely written to support “legacy” application software but offer a “new way in” for newer apps.

In the case of your jurisdiction’s contact-tracing check-in app, you may have to do a Google image search for QR codes relating to that platform. Here, some of these images will represent a sharp-enough representation of a “production” QR code at a known place. Or a club or similar organisation may have set up and posted a “test” or “set-up” code to help members with the onboarding process for the contact-tracing check-in platform.

Conclusion

Your phone not working properly with QR codes may not be just a camera or lens problem but software associated with this functionality that simply had stalled or crashed. Here, you may find that you simply restart your phone to gain full functionality.

IEC-standard AC cord equipment-side connectors on AC power cords

In the 1970s, the IEC defined a number of standard equipment-side connections as part of connecting appliances and equipment to the general AC power supply used at home and in the office using a detachable AC cord. The common types are the C5/C6 “cloverleaf“ three-pin connection used primarily on laptop chargers, the C7/C8  “figure-8” two-pin type commonly used with portable radios, the larger C13/C14 three-pin connector used on most desktop computers, office equipment or guitar amplifiers and the C15/C16 notched three-pin connector used on a significant number of electric kettles and similar appliances.

These standards have benefited appliance designers, manufacturers and users through the life-cycle of the equipment concerned. It has mad it easier to design something that will work worldwide and simply package the appropriate cord that has a nation’s particular AC plug on one end and the appliance’s IEC-standard equipment-side plug on the other with that appliance.

IEC C7/C8 “figure 8” AC socket on a camera battery charger

This idea has been helped along by equipment designs that use multi-voltage power-supply approaches like switch-mode power supplies or user-switchable input voltages. Here, the equipment manufacturer would be encouraged to make devices that they can sell or the end-user can take anywhere in the world.

For example, a portable radio that receives the standard 540-1600 kHz medium-wave AM band and the 88-108 MHz FM band and equipped with a switchable AC input voltage and IEC-compliant AC power inlet would have world-wide utility value. That is because nearly all countries have their broadcast stations on these bands and the set could be used from AC power anywhere around the world. Even in the days when Europe didn’t have access to all of the standard FM band or countries didn’t open up the FM band for radio broadcasting, these radios still were of useful value in those affected territories.

Then if the user loses the AC cord for that appliance or that cord is damaged, they can cost-effectively replace that cord with a similar one. People who travel or migrate to other countries also benefit because they replace the appliance’s AC cord with one that has the same IEC-standard equipment-side connection on one end and their destination’s AC plug on the other. There is also that likelihood of one coming across a spare AC cord with an IEC-standard equipment-side connection fitting that appliance in their home or workplace and it continues to earn its keep.

IEC C5/C6 “cloverleaf: AC input socket on a laptop charger

It has opened up ideas for AC cords that suit a particular user’s needs. Firstly, there are longer or shorter cords with these kinds of connection at the equipment side that may end up as the right length for the usage scenario.

Secondly there even have been the C15/C16 notched three-pin AC cords that are coiled like a traditional telephone cord and are offered as a safe approach to keeping kettles and their cords away from the edge of the bench to avoid the risk of accidental hot-water scalding.

Or some AC cords that are sold through computer retailers have two C13/C14 plugs on one end and the national AC plug on the other, typically in order to power a desktop computer and a monitor from the one power outlet. This came in to play as computer hardware designers did away with IEC C13/C14 power outlet sockets on their desktop computers that were typically used to connect display monitors to power.

But the problem I do see is that a lot of USB chargers and similar power supplies are being offered as “wall-wart” devices that plug in to the wall rather than a small power brick with an IEC-compliant equipment-side AC connector. To the same extent, some multiport USB “charging bars” use a captive AC cable with the nation’s AC plug on them for their AC connection rather than an equipment-side IEC-compliant AC socket.

This can be an annoyance in some ways for some people. For example, these “wall-wart” devices, once plugged in to a power outlet including a power board, can take up too much space on the power outlet. Then if a user decides to go overseas, they have to purchase a travel adaptor which can become too large for a single power outlet in a powerboard or double power outlet and the setup can become very unwieldy.

Having USB chargers and similar power supplies use IEC-compliant equipment-side AC connections like what is commonly done with laptop chargers can be a real boon.

Overseas travel

One could purchase an AC cord from a local electronics or computer store, or in some cases, a local supermarket for their device that has the appropriate equipment-side plug on one end and the national AC plug on other end. These cables are often sold for pennies’ worth so it is not a case of worrying about how much these will cost.

For example the C7/C8 “figure-8” cable is sold as a replacement AC cable for portable radios, the C5/C6 “cloverleaf” cable sold as a replacement cable for laptops or the larger C13/C14 three-pin cable sold as a computer, office-equipment or musical-equipment cable. In the first two cases, they are sold this way because of people losing AC cables that belong to portable equipment or such cables ending up damaged or faulty.

It doesn’t hurt to ask the reception desk or Housekeeping at the hotel you are staying at if they have a spare AC cable for your laptop’s charger.

It doesn’t hurt to ask the place you are staying at whether they have a spare AC cord with the right equipment-side connection type for your device. This may be due to someone leaving behind the AC cord for their equipment or an appliance associated with that cord had failed but the cord is still serviceable.

Here, you are not worrying about if you have the travel adaptor with you or whether you are “tying it up” with a particular appliance. Rather you can use any power outlet within where you are staying to power your equipment using that cord.

This is infact more of value for those of us who are staying in holiday-rental houses or apartments including serviced apartments; or who are staying at relatives’ or friends’ homes. Here, you are able to take your laptop or charger in to the kitchen, living room or other common spaces and plug it in anywhere.

It also comes in to its own where your travels are primarily within geographic areas that use the same AC plug type. Here, you can rationalise down the number of AC plug types you need to cater towards when you pack accessory cables for your electronics.

Migration and long-term travel

Migrants and long-term travellers will also benefit very well because it is easier to move equipment between countries. Here, they reduce the number of travel adaptors they need to buy for all of their equipment. But they buy the AC cords compatible with their destination country’s mains sockets for their equipment when they arrive and settle down.

Migrants may even be able to leave behind their appliance’s AC cord that they used in their country of origin and pick up an AC cord in their destination country if their journey is primarily a one-way affair. That may help with cutting down on accessories that they need to worry about when they pack.

Choice of cables

You may find that the AC cable that came with your equipment may not be right for your needs.

This is more so with a charger you are using for your laptop, tablet or smartphone and it may be found that having a longer mains-voltage AC cable run means you aren’t losing low-voltage DC current at your device. In this case, an electronics store or online retailer may offer a longer AC cable, usually up to 1.8m, with the appropriate equipment side connection.

Similarly, you may find that you can purchase an AC cord of a particular colour or is designed in a particular way. For example, you may find that you want to have the cable blend in with or stand out against the interior design of the room you are using your equipment in. Or, as I have mentioned before, you may find a particular IEC-compliant AC cable that suits your situation like the aforementioned C13/C14 Y-cable that can power a desktop computer and a monitor from the same outlet.

Also be aware that some online sources do offer adaptors that have a C13/C14 power socket on one end and a C5/C6 plug or C7/C8 plug on the other end. This is typically used with a power cord that has a C13/C14 equipment-side connection to power equipment that uses the “cloverleaf” or “figure-8” AC connections, something commonly done with advanced computer setups where some low-profile equipment is being used.

Conclusion

A charger or power supply that uses IEC-standard AC-input connections does allow for increased device and AC-cable utility along with adaptability to different usage scenarios.

DTS Play-Fi Home Theater setup based around a Philips TV

Google, Apple and Amazon implemented “home-theatre” setups for their set-top-box and smart-speaker platforms. That is where their smart speakers and set-top devices work together in order to provide improved TV sound from audio or video content sources hosted on these set-top boxes. But these are focused primarily about improved stereo separation for the video content’s sound.

Similarly, Denon, Yamaha and Sonos have used their own network-based multiroom audio platforms to support multichannel sound across multiple Wi-Fi-based speakers that work on their platforms. This even extends to 5.1 surround sound with the IP-based packet-driven home network as the backbone between the speakers.

These setups have answered issues associated with the IP-based packet-driven small network that can affect proper in-sync in-phase multichannel sound delivery such as latency affecting one or more channels. Here, it’s been about using a single audio device, typically one the receives the stereo or multichannel audio stream from the source, working as the “reference sync device” for the multichannel audio setup and making sure all speakers refer to that device for the time sync information.

The DTS Play-Fi network-based multiroom audio platform has been supported by a significant number of “names of respect” within the hi-fi world. But lately a few TV manufacturers have come on board to extend this platform towards TV and video use cases including wireless network-based surround sound.

Initially this use case, driven by Philips, applied towards “extending” TV audio towards other logical rooms within a DTS Play-Fi setup. But it is now extended towards DTS Play-Fi surround-sound setups which use this technology and your home network as a backbone between the TV and the speakers that are part of a multichannel surround-sound setup.

This is based around a TV working as a “master device” or “anchor device” with the sound delivered to DTS Play-Fi speakers that serve the front left and right, surround or bass channels of the surround-sound setup. The TV’s own speakers would serve as the centre dialogue speakers and this cluster of speakers is set up as a logical room when it comes to streaming audio around your home network.

DTS Play-Fi Home Theater surround sound setup – this time the soundbar is the main audio device

This concept is now extended towards a soundbar serving as a “master device” for these setups, due to the desire to have it work with all TVs rather than those equipped for DTS Play-Fi. In a lot of cases, the soundbar is used as a cost-effective and visually-attractive step towards improving one’s TV sound, with these devices appealing to households that maintain the “TV in the corner” arrangement or prefer a separate stereo system for music.

It is in addition to the “home theatre” application being extended to Dolby Atmos / DTS X setups that implement “height” audio channels. Here, a DTS Play-Fi setup with suitable equipment can be set up to encompass upward-firing speakers or speakers installed up high to create that “sound-above-you” effect but using wireless speakers and your home network.

Again this offers the advantage of wireless surround speakers where you only need power outlets near these speakers to have them work. This still comes in to its own with the open-plan living area with the lounge furniture serving as the room divider – there is very little in the way of cabling to deal with and the surround speakers can be relocated at a moment’s notice.

Similarly, the “sound bar” application could come in to its own with AV receivers where the goal is to move towards a full surround setup but without the ugliness associated with speaker cables run to the back of the room. This is something that some of DTS Play-Fi’s member companies like Onkyo and Pioneer who manufacture AV receivers, could aspire towards especially if they are trying to target some of their products towards the “value” market segment.

Here, some users may use a comprehensive AV receiver for their music playback and home-theatre needs, whether with a stereo amplifier and speakers optimised for music playback handling the front speakers or not. As well, a manufacturer could be offering value-priced AV receivers  that have up to four power amplifiers but support surround sound with DTS Play-Fi speakers.

Lets not forget that Philips could be a brand that pushes DTS Play-Fi towards the territory of affordable equipment and speakers being available from many household names. This could lead to speakers that are priced in a manner similar to IKEA’s SYMFONISK did for the Sonos ecosystem. That is to allow you to build out a network-based multiroom audio system or start a surround-sound setup based on the DTS Play-Fi platform for a reasonable price. It also includes creating one of these setups from scratch using affordable speakers then aspiring to use higher-quality premium speakers in the main living areas of the home while the affordable speakers end up in secondary areas like the bedroom.

The DTS Play-Fi approach to network-based surround sound is demonistrating the use of your home network for full surround sound distribution. As well, this is facilitating the use of a heterogenous setup with speakers from different manufacturers this allowing for the existence of innovative hardware that excels or is affordable for most people.

Articles

Sony INZONE monitor and headsets

Sony announces INZONE line of monitors and headsets for PC and PS5 gaming | ZDNet

Sony’s new hardware brand will launch with gaming headsets and PS5-optimized monitors | Engadget

From the horse’s mouth

Sony

INZONE Product Page (USA)

INZONE Press Release

My Comments

Sony is creating the INZONE sub-brand that is pitched towards young gamers. This will be primarily used to market monitors, headsets and other peripherals that are optimised for video gaming on consoles or regular computers.

At the moment, there are two 27” monitors that are optimised for gaming on computers or video games consoles like the PlayStation 5 or the XBox X. These are designed on a “horses for courses” basis to suit the kind of video games a particular gamer wants to play. The INZONE M9, which has 4K UHD resolution and 144Hz screen refresh will come in to its own with “massive multiplayer online” and strategy games that excel on visuals but are slow-paced. Then the INZONE M3, which has Full HD resolution and 240Hz screen refresh is optimised for fast-paced games like first-person shooters where it is critical that you can detect the enemies in the game. These screens automatically adapt themselves towards gaming-focused behaviour or movie-focused behaviour depending on what is played through them, allowing them to become entertainment screens for that bedroom or dorm room.

There are two wireless headsets along with a wired headset in the INZONE gaming product range. The H9 and H7 wireless headsets can work with Bluetooth or a dedicated 2.4GHz low-latency wireless link to the host. The H9 is based on Sony’s successful WH1000XM active-noise-cancelling headset platform which allowed Sony to answer Bose with high-quality value-for-money noise-cancelling headsets and kick off the “Headset Wars”. The H3 wired headset connects to the host device via a USB connection or an analogue 3.5mm audio connection. But they all support Tempest 3D AudioTech virtual surround as implemented in the PS5 console thus allowing for spatial sound.

I see the INZONE effort as being very similar to Sony’s XPLOD car-stereo branding. This is the creation of a sub-brand of products that are pitched towards today’s teenagers and young adults who don’t have children and put their money towards leisure pursuits. In the XPLOD case, this was about high-performance car stereo equipment that is installed in those cars that they like to trick out. INZONE would be about marketing a range of gaming-optimised peripheral devices so those young people out there who want to get the most out of video games.

But could I see this as Sony offering more INZONE-branded computer-peripheral hardware pitched towards gamers? An obvious case could be something like speakers or soundbars that have sound qualities that go well for video games. Or I would see something like a range of TVs with screen sizes of between 32” to 40” that have screen refresh rates and image responsiveness desired for “core” video gaming.

Article

Starlink to allow semi-portable use of their satellite terminal

Starlink Internet Will Now Let You Take Your Dishy on the Go (gizmodo.com.au)

My Comments

Starlink is offering the ability to use your Starlink dish terminal and Internet service in a transportable manner around the same continent.

Here, this will be offered as an extra-cost feature to your subscription with costing USD$25 per month. You can enable and disable this feature as required which can come in to its own with those of us who use Starlink when camping or caravanning during the holiday seasons, or when running a temporary remote worksite.

The requirements for Starlink’s portability feature include:

• The device to be used within the same continent as the registered address of service and to be within Starlink’s coverage footprint
• To change the registered address of service if you are away from your current service address for more than two months
• To use the Starlink terminal in a stationary location rather than in a vehicle or craft that is in motion

.. to come in to its own with caravans and boats and similar scenarios

You will expect best-case performance at the location you are temporarily using Starlink at because this low-earth-orbit satellite system is currently engineered to prioritise uses who have registered their Starlink service at that location.

The fact that the Starlink setup is not fully mobile and requires you to have equipment stationary while in use would come in to its own with certain use cases. For example, a recreational-vehicle or boat user who moves around would set up their Starlink setup when they have set up camp or moored their boat and only while they are at that location. Similarly a temporary mobile office would set up their Starlink terminal when they have arrived at where they want to work at.

There doesn’t seem to be any information about permanently installing a Starlink dish terminal in a vehicle, transportable building or boat. This approach may satisfy those of us who regularly take that vehicle, building or vessel to a particular location but want to reduce the number of tasks required to set oneself up at that location.

Another question that will come up regarding the “same continent” rule is whether islands that are located close to the continent but are politically separate from that continent are considered thus, even though they have Starlink service. This may be of concern where the island or islands are separated from the content by a day or overnight trip in a car ferry or, in the case of UK and France, a short train trip through a tunnel.

There is still the intent to offer a fully-portable service where the Starlink satellite Internet service can be used in a moving vehicle or vessel. This may have to be initially offered as an inland / coastal service relative to a continent which may satisfy most use cases like trains and coaches moving across a country or boats that are “under way” in inland or coastal waters.

I suspect that this will come about when Starlink is offered in more areas as an Internet backbone for general public-transport situations like air travel, cruise ships and long-distance trains.