Showing posts with label Gadget. Show all posts
Showing posts with label Gadget. Show all posts

Wednesday, 22 November 2017

What Are Headphone Drivers and How They Effect Sound Quality

Headphone
For in-ear headphones, there is always talk of dynamic drivers and balanced armature drivers. Today we deal with the topic and show the differences. If the in-ear listener sits properly in the ear canal and thus "closes" well, the space between the eardrum and the membrane is closed and very small. The whole thing then works like a kind of spring system (or "push-pull mechanism") and the membrane can move the eardrum well with little deflection and little energy, ensuant in a very good bass upshot. As soon as there is a leak in this system, this is immediately noticeable by the fact that low frequencies are lost (as is the case with ear buttons). This is because the human ear is less sensitive to low frequencies (below about 150 Hz) than to higher frequencies.

So if we want to hear low frequencies better then a lot of energy has to be applied to amplify them. When using loudspeakers, low frequencies are still physically noticeable. This is not the case with headphones. Also, speaker diaphragms are larger and more stable (thicker material), which allows much more air to be set in motion than headphones. In order to be able to make the best possible use of the low energy that the headphone system develops, care must be taken to ensure that the headphones or in-ear headphones are optimally terminated.

Ok! Which driver was used certainly determines how well the in-ear headphones sound. In the development of the drivers most of the money usually flows in the production of in-ear headphones.
 

What are balanced armature drivers?

 
Balanced Armature Drivers (BA) are often used only in in-ear headphones in the higher price segment. Balanced armature drivers are made to sound particularly good in a certain frequency range, such as: As the heights, which is why in-ear headphones with Balanced Armature drivers often several drivers installed. For example, the Sony XBA 3 iP incorporates 3 Balanced Armature drivers, which ensure that the entire sound spectrum is covered.
 

Advantages of Balanced Armature Driver

 
  • You can make a frequency range sound great
  • The sound sounds more detailed
  • The sound plays faster
  • The treble sounds clearer than dynamic drivers
  • They are smaller than in-ear headphones with dynamic sound transducers and weigh less
  • They need less power than dynamic drivers
 

Disadvantages of Balanced Armature drivers

 
  • The bass is weaker than dynamic drivers
  • In-ear headphones with Balanced Armature drivers are more expensive
  • Often several drivers are necessary to cover all frequency ranges
 

What are dynamic drivers?

 
Dynamic drivers in in-ear headphones make it possible for in-ear headphones to be offered at a good price. Unlike Balanced Armature drivers, only one driver covers the entire sound spectrum. They work on the same principle as loudspeaker boxes.
Advantages of dynamic drivers
  • Cheaper than Balanced Armature sound transducer
  • Bass frequency is better
  • The sound signature is better coordinated
  • Often they are also more robust than Balanced-Armature drivers
 

Disadvantages of dynamic drivers

 
  • No detailed sound like Balanced Armature drivers
  • The heights are not that clear in comparison
  • They weigh more and are bigger too
 

Balanced Armature Drivers and Dynamic Drivers

 
In some in-ear headphones both types of drivers are worn, such. B. the Sony XBA H3. The advantage of having multiple types of drivers is that the bass and treble sound great, but the case is usually larger and they weigh more.

Moving Armature driver


Moving Armature drivers are new drivers that combine the benefits of Balanced Armature drivers and dynamic drivers. Moving Armature drivers work like Balanced Armature drivers but have the advantage that the entire frequency range is covered in contrast to Balanced Armature drivers where multiple drivers are needed, the Moving Armature driver in-ear headphones only need a driver. However, very few models use this type of driver so far and they are also quite expensive.

The classic and most commonly encountered headphone driver is - as with speakers - the electrodynamic principle assign.

However, in order to map the entire frequency spectrum as accurately as possible, partially modified drivers are used, such as the Variomotion technology from AGK (depending on the frequency position, a larger or smaller part of the diaphragm swings) or the ring driver of the Sennheiser HD800.

Saturday, 18 November 2017

Researchers Developed Flexible Photonic Devices

Flexible Photonic Devices
Photonics will have a direct impact on many areas of our daily life. Soon photonics will be fundamental, both for the improvement or replacement of existing processes and for the development of new solutions and new products.

On the other hand, society demands products with better and better features: new functionalities and improved properties, lightweight, flexible photonic devices, and capable of adapting to different materials and surfaces. Likewise, these developments must be competitive and not increase the price of the final product.

A team of MIT Associate professor Juejin Hu from the University of Central florida, China and France has developed a new method of making light based photonic devices. These special flexible photonic devices is made from a kind of glass called Chalcogenide. This specialized kind of glass material has a great flexible property which can be bend and strech to the very large extent without any damage. These flexible photonic devices can be used in field of biomedical sensors and flexible connectors in Electronics.

How about a device that can simultaneously detect blood oxygen level, heart rate and blood pressure? Yes, these flexible photonic devices of optical technology which are made from the strechy and bendable material can be mounted in skin to monitor the condition.

By using these kinds of new light based flexible photonic devices, we can stave off the condition for the conversion process. Because, if the original data is light based is having the advantages for a lot of applications.

The current photonic devices applied in the field are made up of rigid materials on rigid matters thus rises an intrinsic counterpart. The polymer based softmaterials is having a less refractive index tracks to not so good ability to circumscribe a light beam. To confront this issue, the team of MIT researchers have developed a stiff material that can stretch and bend which is almost like a Rubber. Its confuguration is like a spring made from a polymer matter has no noticeable abjection in its optical performance.

Other flexible photonic devices that are made by implanting nanorods of a rigid substrates in a polymer base need extra developmental steps. And hence they are not congruous with current systems. These flexible photonic devices can also be used for applications where the devices require to adapt to the rippled surfaces of some other material. But optics technology is extremely sensitive to strain, thus can observe deformations of lower than one hundredth of one percent.

This team recently has formulated a way of segregating layers of photonics, made of chalcogenide and graphene with customary semiconductor photonic electronic equipment. Current method of segregating such material need them to be made on a surface and then take off and tranfern to a semiconductor thin layer. This process is very difficult. But the new procedure permits the layers to be fancied directly on the surface of a semiconductor. This process no need a special temperature condition for the entire process and thus allows very simplified fabrication and more punctilious coalition.

This team of MIT researchers have confirmed very soon they develop this new technology of flexible photonic devices to reach commercially.

Thursday, 9 November 2017

A New Set of Eyes in Your Home: Cherry Home

There are a range of high security cameras out there, this one is a little different in monitoring your house. Cherry home made by Cherry labs, a startup company is the latest in AI technology. Besides this gadget being the eyes in your house it also senses your every movement and the layout of the room that it is in.

The cherry home cam can even identify you wherever you are in your home. The Cherry home sensors are able to detect your eye color, proportions of your body and even hair color. This gadget can do all this and more with its processor and sensors.

This gadget can also sense your laugh, scream and squeals and analyses them to see whether there is any danger. The info is then passed onto to an app that can be installed on any smartphone. The cherry home cam can also dial 911 in case of an emergency.

With the latest in AI technology, this gadget is able to triangulate the room it is in and give real time data to an app on your smartphone. So an individual can see all that is happening in the room that they are monitoring.

The gadget also notifies you in case there is an incident such as a person falling down. It is able to discern an individual’s laughter and scream when they are in danger.

Right now the Cherry home cam can do all these things but the startup company has also promised more in the future. According to the company, the Cherry cam will be able to sync in with your smart home and turn on lights when you need them. Another feature of cherry cam that is in the pipeline could be a breakthrough in what a security cam can do. The Cherry labs is reportedly in talks with pharmaceutical companies in trying to get the Cherry cam to identify when a person is in the process of getting a stroke and then to dial 911 or emergency services.

The gadget is packed with a binocular camera, infrared sensor for night time monitoring, an altimeter, a compass and an accelerometer. So how does this thing actually work? The cam sends data to a central processor with a high end PC to analyze all the data. It connects to other cameras in the house through a mesh WiFi network. It only connects to the cloud when it needs to transfer data to an app on your smartphone.

This Gadget also comes with a coin sized battery that is recharged by the processor cherry cam houses. There are also two batteries that are spares in the camera.

Now for the most important question at what price can a consumer get the incredible Cherry cam? The prices of the Cherry cam are not so conducive to buying them. A starter pack is available for 900$, a camera in this range would include 2 sensors and a processor while a pack of 4 sensors would cost you 1200$.

Tuesday, 3 October 2017

Amazon Revamps Echo Smart Speaker Family

Amazon

Echo Smart Speaker – Improved Sound & Voice Recognition

 
New forms of its Echo smart speaker with the possibility of improved sound and voice recognition has been announced by Amazon. Moreover, the simple model also enables in changing its shell and provides it with different looks which is a feature offered already by the opponent Home gadget of Google. A bigger Echo Plus enhanced by a `home hub’ enables it in controlling smart light bulbs together with third party products minus a separate data-linking gadget.

 The Echo Spot tends to have a screen which makes the video calls as wells camera feed promising. Sales figures for the earlier Echo line-up had not been released by Amazon, however researchers have recommended it. Its smaller sibling, the Echo Dot has been the best-selling device.

The Echo family is said to account for around 75% of the US market with regards to internet-linked speakers together with built-in smart assistant functionality that has been estimated earlier this month by Consumer Intelligence Research Partners. Till date it has been suggested that around 15 million devices have been sold. The latest Echo smart speaker is said to be smaller than its predecessor and has the advantage from a keen bass tweeter.
 

Six Swappable Shells/Various Materials

 
The Echo smart speaker comes with the option of six swappable shells with various materials and gadget is priced at £90/$100/100 euros which it around 40% cheaper than the earlier version and challenging the £129 Google Home gadget. The Echo Plus compatible with the Zigbee smart home protocol is priced at £140/$150/150 euros while the Echo Spot having a screen size of 2.5-inch together with a built-in camera is priced at $130.

The same will be launched in December in the US though has not provided a release date elsewhere. Blake Kozak from the HIS Technology consultancy had commented that Amazon has been the first agent in this market and hence had the benefit over some of those who had entered the same space. He further added that it was incredibly important for them to do a refresh, wherein the original Echo came out in 2014 and the hardware had not been updated ever since, though the software as well as the back-end services had been enhanced incessantly.

Most of the latest systems tend to feature Alexa assistant of Amazon and would not be seen as a risk. Thereafter several more premium systems had been announced with higher quality speakers and hence Amazon needed to be seen to contest the competition. This brought in the Echo smart speaker in the market.
 

Competing Schemes

 
Earlier, Amazon had mentioned that it tends to sell its Echo smart speaker approximately for the price it cost in producing the gadget and since its final objective is to utilise Alexa as a means of driving sales of the other goods and services. However, earlier this month, at the Berlin’s Ifa tech show, many big name manufactures comprising of Sony JBL and Panasonic had launched systems powered by the rival Assistant of Google. Additional competing schemes that are anticipated before the end of the year comprise of-
  • Siri powered HomePod speaker system of Apple
  • Invoke of Harmon/Kardon that will utilise Cortana technology of Microsoft
  • Novel speaker from Sonos which would be supporting multiple smart assistants
  • The likelihood of a new version of the Google Home when search firm tends to host an event on 4 October.

 

Link to Landline – Speakers into Speakerphones

 
Besides the Echo smart speaker, Amazon has also made an announcement of the gadget, Echo Buttons – small Bluetooth based buzzers, at its Seattle event which could be utilised for playing games on its speakers, inclusive of an upcoming version of Trivial Pursuit. Moreover it has also publicized the Echo Connect which is a gadget that tends to link to a landline turning its speakers into speakerphones. It has also announced an arrangement of bringing Alexa to some of the BMW’S cars inclusive of its Mini brand.

Geoff Blaber from the tech consultancy CCS Insight had stated that Amazon tends to have the momentum in the smart speaker and voice assistant area. This announcement had been developed to deepen its role in daily lives and this tends to raise the bar considerably for Apple and Google.

Amazon seems to be functioning exceptionally hard in exploiting on the success of its smart assistant hardware and that he is concerned this new line-up seems to be complex and the most knowledgeable consumers would be perplexed as to what feature they would be expecting for their money. The option is said to be immense with Echo, Echo Plus, Dot, Look, Spot, Fire TV, Fire TV Stick together with the Dash Wand. With the Echo smart speaker, Amazon has the opportunity to do for home automation what Apple had done for smartphones.

It was essential for the company to announce a smartphone which would be an enhanced gadget than the upcoming iPhone X and now a home assistant set-up which is tougher than what had been portrayed by Amazon

Tuesday, 1 August 2017

Mono-Live Gadget Review: Sonnet Will Turn Your Phone Into Off-Grid Life Saver

Sonnet

Sonnet – Off-Grid Hexagon

Sonnet which is an off-grid hexagon tends to connect to your phone providing the potential of sending messages or even maps without the need of a cellular or satellite signals. It is the most advanced off-grid Mobile Mesh network and is like a walkie-talkie for your phone.

 It tends to have global offline maps, together with a panic button to send an SOS signal as well as a 4000mAh battery to charge your phone when it is on low charge. Our phones are dependent on mobile network and are unable to keep the user connected when the mobile network is inaccessible or defective like on instance when one is

  • Travelling the backcountry and the network is not available or could have very light coverage 
  • Traveling abroad and the network tends to be unreliable or very expensive 
  • Attending crowded events where the network tends to be slow and congested having too many users around the place 
  • Encountering a natural disaster where the network service tends to get disrupted or totally damaged 

Walkie-talkies have a tendency of functioning anywhere though they could be:

  • Massive and burdensome and some may weigh tons while carrying them around the place 
  • Complex and unintuitive where plenty of tuning and setup may be needed before it could be utilised 
  • Very low-quality audio with no text, image. It tends to have bad audio which may at times lead to miscommunication
 

Sonnet Super Advanced Walkie-Talkie

 
Sonnet being an Off-the-Grid communication device enables the user to utilise their smartphone as a super advanced walkie-talkie which has the possibility of sending super advanced walkie-talkie that can send instant message, image data, voice recording as well as GPS Coordinates in the absence of cellular coverage’s and internet access.

Sonnet is said to bring about the long range wireless communication of the walkie-talkie to your smartphone and connect to the smartphone via Wi-Fi relaying any data sent from your phone to other sonnet devices through the long-range radio wave. This tends to remove totally the reliance of the smartphone on cellular grid and the other network infrastructure enabling it to be utilised when there is no cellular connectivity or internet access. It does not have any frequency to tune or channel to be set. The user could only connect and get started with chatting. One can utilise the Sonnet App just the way as any other instant messengers for:

  • One-on-one private messages 
  • Private group messages 
  • Public messages to any users of Sonnet within the range.
 

Sonnet Equipped with SMA Connector

 
Sonnet App tends to run directly in the browser of the smartphone and hence one need not download or install any app. Sonnet is entirely off-the-grid and functions independently of any network infrastructure which means that Sonnet enables the user to remain in touch with friends and colleagues irrespective of where they may be.

 The usual point-to-point range between two devices of Sonnet is 5 km, around 3 miles. This range could be up to 15 km in case of a line-of-sight such as when the sender and the receiver seem to be on top of two mountains. Besides this, Sonnet is equipped with a SMA connector wherein one can connect their own directional antenna for the purpose of increasing the point-to-point range much further.

The mesh network of Sonnet tends to intensively increase the effective range further than the point-to-point range by relaying the data via the other devices. The data can be relayed by Sonnet up to 16 times in achieving a maximum range of 80 km. To use Sonnet there is no need of a subscription fee and one can send as many messages as one desires.

 

In Emergency – Panic Button

 
If one device tends to have internet connection, the entire network can then have access to it. If Sonnet is placed in a car or base where there is availability of internet, then one can have access to the internet in the backcountry by being in possession of another Sonnet. The Sonnet App had an offline map wherein one can get directions and view points of interest without the internet connection. In an event of emergency, the app which has a panic button comes in handy.

You could long press the button for five seconds to activate the SOS mode, broadcast your prevailing GPS location and your distress message is conveyed to all Sonnet users within range. Being equipped with a 4000 mAh lithium polymer battery, it comes with a USB port and hence one can charge your smartphone with it.

Sonnet tends to charge fully most of the smartphones on the market. Sonnet is said to have a rugged design making it compatible for the purpose of out-door use and is rated IP66 meaning that it is dust and water resistant.

This enables the user to bring the Sonnet along no matter where one may intend to travel. Sonnet is secure and all communications done with Sonnet are said to be end-to-end encrypted with AES -256-bit. Moreover, Wi-Fi link between Sonnet and the smartphone are said to be secure with WPA/WPA2.

Thursday, 22 December 2016

Mono-Live Gadget Review: Powerbeats3 Wireless Headphones


Powerbeats3
The consumer electronics manufacturers as well as tech firms are working aggressively to build such device which better capabilities and fewer cables when it comes to putting music in the ear. So we got a slew of wireless or Bluetooth headphones coming up each week from variety of labels in amazing range of colors, size and dynamics. All of them share some characteristic feature which includes better sound quality, compact design and smaller batteries which can last longer. But it is Beats which takes all the competition head on with its most authentic and enhanced Powerbeats3 Wireless earphones.

Designed to impress

Powerbeats3 comes with a unique giant adjustable hooks present at both sides which effectively wraps over the ear. This helps in giving a table and comfortable feel to the users. In short users can wear Powerbeats3 wireless headphone for a longer period of time without feeling pain or heaviness on the ears. Secondly Beats has worked efficiently non the inline remote and microphones present in both the buds which are able to pick up calls and can communicate with smartphone’s AI with ease and grace.

Most of the users find it difficult to pair their wireless headphones with Apple devices. In order to overcome this issue Beats has include the W1 chip which allows users to pair with Apple devices in an instant without much hassle. It has a huge battery backup of 12 hours which means users will have to charge just once or twice a week. Beats products are known for bigs and lows and so is true for Powerbeats3 and it doesn’t mean that the sound output is awful rather it has the Beats touch in it.

Ease of use and simple design coupled with amazing sound quality

The best thing about Powerbeats3 is that it can be paired fairly easily than any other available wireless device. Users are simply required to press the button on earphone and keep it closer to the device they wish to pair it with. Powerbeats3 was paired with a huge a number of devices where it acted like an instinct and connected within a relatively short time without any hassles. The play/ pause button works amazingly fine with this wireless earphone as it is able to pick up input without fail.

Sound quality output is the best part of the Powerbeat3 as it offers a refreshingly awesome and sublime experience. It brings the one-of a kind true sound isolation feature which drown all the sound you in a remarkable fashion. The only downside found in this Powerbeats3 wireless gadget is that it charges with MicroUSB when whole the world has moved onto USB-C and Lightning ports.

Powerbeats3 comes at a huge price tag of $199 which is the case with all the offerings from Beats. If you are willing to shell such an amount then you will be greeted with amazingly sound quality, sublime design or else you can go with other offerings available in the market.

Thursday, 1 December 2016

Gadget:OnePlus 3T Review


OnePlus 3T
The Oneplus 3T is the new name of the Smartphone released by the Company Oneplus. This new product has currently been launched and currently been put for sales in US, UK and Europe. This Chinese smartphone manufacturer has been famous to give an killer specs in an flagship mobiles especially in an affordable price. This company’s previous product was the Oneplus 3 which made the people go crazy for its specs.

DESIGN 

The new Oneplus 3T features the same design of its previous sibling the Oneplus 3T. The Oneplus 3T is fully made up of full metal but yet it weighs light in hand. This has an slightly curved back and nice curved round edges and very thin which makes is nice to hold in hands easy to carry.

The new flagship phone now features a new color variant that is the new Gun metal color replacing the old silver color and the phone also comes in Gold variant as well. The Gun metal color comes in 64gb and 128gb storage options whereas the gold comes in 64gb storage.

The design of the phone may be the same but we can guess that there might be an improvement in the hardware and software processing and acceleration.

DISPLAY

The Oneplus 3T features the same 5.5 inch AMOLED display with a 1080p resolution as on the previous Oneplus 3. This device features a dual polarizing layer which makes us to view and use the phone in the brightest Daylight.

When you buy an good and a premium Smartphone there must be certain safety measures take to protect your device. One of them is the screen protector in this case the Oneplus 3T ships with an pre installed gorilla glass 4 screen protector which is an very welcomed addition.

PERFORMANCE

The new Oneplus 3T has an updated snapdragon 821 processor clocked up to 2.35GHZ which boosts the phone for a faster proceeding speeds and greater efficiency compared to old Oneplus 3 and compared to the Oneplus 3 the new 3Ts battery consumption is so efficient.

The new phone consists of an 6GB LPDDR4 ram which helps the device to perform faster.

BATTERY

The Oneplus 3T has been updated with an 3400 mAh battery compared to the Oneplus 3 which features an 3000 mAh battery. The battery has been increased by 13% without an increase in weight in the device.

The phone is shipped with Dash Charger which helps to get the phones battery back to full charge in less time. The Dash charger contains the extra heat from charging your device and this prevents its way to the device. This makes it easy to use the Device when its still connected to the charger.