As the vinyl comeback gains pace, the cost of going back in musical time can strike the wrong chord. JOEL KOPPING offers a vinyl primer for first-timers and returnees.
Lots of people will tell you that vinyl records are making a comeback, and they are almost right.
I say “almost”, as vinyl records never went away. They were simply overshadowed by the glut of digital forms of media that were supposed to offer “perfect” reproduction of music.
Vinyl fans like myself continued listening to music off these plastic discs, niche manufacturers continued developing record players and allied components and, while the major record labels stopped pressing records, smaller companies continued making records.
It is somewhat surprising that, as the world has moved away from CD-based music and people integrate more and more into digital life styles – which, at face value, should push people even further away from analogue audio – more people are discovering that vinyl records are alive and well.
Perhaps being digitally connected and and having everything we need to look at or listen to available almost instantly and on almost any device, has cleared the mist or mysticism that obscured vinyl records. The more digital we become, the more clearly we are able to see how much fun it is looking at and listening to music delivered by pure analogue devices.
Listening to vinyl offers a different – not better or worse – experience when compared to listening to digital downloads or streamed music. Part of this difference is the process of playing a record. This process includes carefully removing a record from its sleeve, placing it on the platter of a turntable, giving the record a quick clean with an anti static brush and, finally, carefully lowering the stylus on to the spinning record.
Now there are two main reasons why people play records.
The first is that many prefer the sound of vinyl, and the second is that people want to convert old music that is not available any more into a digital format they can carry with them.
Here we look at how you can enjoy vinyl music or copy your old favourites into a digital form.
Before getting to what hardware and software you need to start your vinyl journey, I’m going to describe briefly how records and turntables work.
If one were to have a look at the grooves of a record under a microscope, you would see what looks like a mountain valley. The left and right sides of this valley contains the left and right channel music information. The stylus -or needle- of a cartridge which is attached to a tone arm, is literally dragged through this vinyl valley. As the stylus journeys through the valley, the small left and right and slight up and down motion of the stylus is converted into electrical signal. This signal is amplified into the music we listen to.
This process sounds pretty simple, but there is a little more to it.
What we need to realise is that the stylus does not know the difference between vibrations caused by tracking through the record grooves and vibrations caused by a rough running motor glued or screwed to a turntable chassis, or those caused by platter bearing that isn’t running smoothly. These noises can sound like rumble and some older amplifiers were even equipped with a rumble filter.
Another issue that often rears its ugly head is that of speed stability. If the speed that the record plays at is too fast or too slow, the music will sound, naturally too fast or too slow. Even worse than this is when the speed of a turntable varies while playing music.
The next issue I want to talk about is, to me, the most important one.
This is called tracking force, and it is simply the weight that the diamond stylus exerts on the walls of the grooves of the record. By the way a good rule of thumb is that the downward force of the stylus should be around two grams. If the tracking force is set too high, or if the diamond tip of the stylus is damaged, instead of riding the ridges in a record groove the diamond simply sand papers the grooves away. A record can be taken from new to unlistenable in as little as two or three plays. Of course if you’re converting music from vinyl to digital and the above is happening, you wont be recording the musical detail that is being worn away.
To ensure record grooves are not too wide, before music is copied to a record low frequency sounds are reduced in level and high frequencies are increased in level. This change in levels follows what is known as the RIAA (Record Industry Association of America) curve. On playback and to ensure that we hear music as it was meant to be heard a device called a Phono Amplifier boosts low frequencies, reduces high frequencies and amplifies the extremely low level signals it receives from the cartridge. The better the Phono stage applies the correction, and the quieter its amplification stage is, the better the sound will be.
Some turntables have phono stages built in, some amplifiers have phono stages built in and there are lots of phono stages available at mild to wild prices.
No matter what your reason for wanting to get into vinyl again, what the above says is that pretty much every part of the vinyl replay chain is important. You can not expect to get good vinyl rips if the weight of the stylus is so high that it flattens the grooves it’s supposed to ride. You will not hear all the musical detail from a record if the motor vibrates the turntables chassis and these vibrations are picked up by the stylus.
Fortunately there are quite a number of inexpensive – this I admit is a relative term) and good sounding turntables on the market today.
I recommend, as a minimum starting point when looking at a prospective turntable, the following:
Can you set the tracking force (weight) of the stylus?
If you cant do this, you will never know if the down force is too high. We could assume that it’s correct, but do you want to test this on your records.
Can you replace the Stylus and/or the complete cartridge? If you can, are replacements available?
Styli are delicate and can easily be damaged, you don’t want to have to replace an entire turntable because your three year old wanted to play.
The above I’m afraid already precludes much of the turntables available in mass retailers.
There are, however, quite a few DJ type turntables that are built well, do offer the capability of setting tracking force and sometimes even pitch- Speed- control.
Moving a step up you get to turntables manufactured by specialised audio companies.
Two Brands I can recommend are Rega and Project. Models from these brands start at reasonable prices, particularly considering their audio and build quality. Both are available through retailers nation wide.
A third option is buying second hand. There are quite a few people who have travelled the same path you’re on, and who’ve ripped their whole collection and now want to sell their turntable. A good second hand model will certainly beat a bad new one.
Remember that a good phono stage will make a difference and both the Brands mentioned earlier have models that offer both analogue and USB outputs. USB means that you can rip records directly from the player/phono stage to your PC.
One last thing to remember is to keep your records clean and handle them carefully. Dust, dirt and greasy finger marks will all add noise and help damage those delicate record grooves.
* For more information on vinyl and turntables, please contact me on firstname.lastname@example.org
Which IoT horse should you back?
The emerging IoT is evolving at a rapid pace with more companies entering the market. The development of new product and communication systems is likely to continue to grow over the next few years, after which we could begin to see a few dominant players emerge, says DARREN OXLEE, CTOf of Utility Systems.
But in the interim, many companies face a dilemma because, in such a new industry, there are so many unknowns about its trajectory. With the variety of options available (particularly regarding the medium of communication), there’s the a question of which horse to back.
Many players also haven’t fully come to grips with the commercial models in IoT (specifically, how much it costs to run these systems).
Which communication protocol should you consider for your IoT application? Depends on what you’re looking for. Here’s a summary of the main low-power, wide area network (LPWAN) communications options that are currently available, along with their applicability:
SigFox has what is arguably the most traction in the LPWAN space, thanks to its successful marketing campaigns in Europe. It also has strong support from vendors including Texas Instruments, Silicon Labs, and Axom.
It’s a relatively simple technology, ultra-narrowband (100 Hz), and sends very small data (12 bytes) very slowly (300 bps). So it’s perfect for applications where systems need to send small, infrequent bursts of data. Its lack of downlink capabilities, however, could make it unsuitable for applications that require two-way communication.
LoRaWAN is a standard governed by the LoRa Alliance. It’s not open because the underlying chipset is only available through Semtech – though this should change in future.
Its functionality is like SigFox: it’s primarily intended for uplink-only applications with multiple nodes, although downlink messages are possible. But unlike SigFox, LoRa uses multiple frequency channels and data rates with coded messages. These are less likely to interfere with one another, increasing the concentrator capacity.
Ingenu Technology Solutions has developed a proprietary technology called Random Phase Multiple Access (RPMA) in the 2.4 GHz band. Due to its architecture, it’s said to have a superior uplink and downlink capacity compared to other models.
It also claims to have better doppler, scheduling, and interference characteristics, as well as a better link budget of 177 dB compared to LoRa’s 157 dB and SigFox’s 149 dB. Plus, it operates in the 2.4 GHz spectrum, which is globally available for Wi-Fi and Bluetooth, so there are no regional architecture changes needed – unlike SigFox and LoRa.
LTE-M (LTE Cat-M1) is a cellular technology that has gained traction in the United States and is specifically designed for IoT or machine‑to‑machine (M2M) communications.
It’s a low‑power wide‑area (LPWA) interface that connects IoT and M2M devices with medium data rate requirements (375 kb/s upload and download speeds in half duplex mode). It also enables longer battery lifecycles and greater in‑building range compared to standard cellular technologies like 2G, 3G, or LTE Cat 1.
Key features include:
· Voice functionality via VoLTE
· Full mobility and in‑vehicle hand‑over
· Low power consumption
· Extended in‑building range
Narrowband IoT (NB‑IoT or LTE Cat NB1) is part of the same 3GPP Release 13 standard3 that defined LTE Cat M1 – both are licensed as LPWAN technologies that work virtually anywhere. NB-IoT connects devices simply and efficiently on already established mobile networks and handles small amounts of infrequent two‑way data securely and reliably.
NB‑IoT is well suited for applications like gas and water meters through regular and small data transmissions, as network coverage is a key issue in smart metering rollouts. Meters also tend to be in difficult locations like cellars, deep underground, or in remote areas. NB‑IoT has excellent coverage and penetration to address this.
The LPWAN technology stack is fluid, so I foresee it evolving more over the coming years. During this time, I suspect that we’ll see:
1. Different markets adopting different technologies based on factors like dominant technology players and local regulations
2. The technologies diverging for a period and then converging with a few key players, which I think will be SigFox, LoRa, and the two LTE-based technologies
3. A significant technological shift in 3-5 years, which will disrupt this space again
So, which horse should you back?
I don’t believe it’s prudent to pick a single technology now; lock-in could cause serious restrictions in the long-term. A modular, agile approach to implementing the correct communications mechanism for your requirements carries less risk.
The commercial model is also hugely important. The cellular and telecommunications companies will understandably want to maximise their returns and you’ll want to position yourself to share an equitable part of the revenue.
So: do your homework. And good luck!
Ms Office hack attacks up 4X
Exploits, software that takes advantage of a bug or vulnerability, for Microsoft Office in-the-wild hit the list of cyber headaches in Q1 2018. Overall, the number of users attacked with malicious Office documents rose more than four times compared with Q1 2017. In just three months, its share of exploits used in attacks grew to almost 50% – this is double the average share of exploits for Microsoft Office across 2017. These are the main findings from Kaspersky Lab’s Q1 IT threat evolution report.
Attacks based on exploits are considered to be very powerful, as they do not require any additional interactions with the user and can deliver their dangerous code discreetly. They are therefore widely used; both by cybercriminals looking for profit and by more sophisticated nation-backed state actors for their malicious purposes.
The first quarter of 2018 experienced a massive inflow of these exploits, targeting popular Microsoft Office software. According to Kaspersky Lab experts, this is likely to be the peak of a longer trend, as at least ten in-the-wild exploits for Microsoft Office software were identified in 2017-2018 – compared to two zero-day exploits for Adobe Flash player used in-the-wild during the same time period.
The share of the latter in the distribution of exploits used in attacks is decreasing as expected (accounting for slightly less than 3% in the first quarter) – Adobe and Microsoft have put a lot of effort into making it difficult to exploit Flash Player.
After cybercriminals find out about a vulnerability, they prepare a ready-to-go exploit. They then frequently use spear-phishing as the infection vector, compromising users and companies through emails with malicious attachments. Worse still, such spear-phishing attack vectors are usually discreet and very actively used in sophisticated targeted attacks – there were many examples of this in the last six months alone.
For instance, in late 2017, Kaspersky Lab’s advanced exploit prevention systems identified a new Adobe Flash zero-day exploit used in-the-wild against our customers. The exploit was delivered through a Microsoft Office document and the final payload was the latest version of FinSpy malware. Analysis of the payload enabled researchers to confidently link this attack to a sophisticated actor known as ‘BlackOasis’. The same month, Kaspersky Lab’s experts published a detailed analysis of СVE-2017-11826, a critical zero-day vulnerability used to launch targeted attacks in all versions of Microsoft Office. The exploit for this vulnerability is an RTF document containing a DOCX document that exploits СVE-2017-11826 in the Office Open XML parser. Finally, just a couple of days ago, information on Internet Explorer zero day CVE-2018-8174 was published. This vulnerability was also used in targeted attacks.
“The threat landscape in the first quarter again shows us that a lack of attention to patch management is one of the most significant cyber-dangers. While vendors usually issue patches for the vulnerabilities, users often can’t update their products in time, which results in waves of discreet and highly effective attacks once the vulnerabilities have been exposed to the broad cybercriminal community,” notes Alexander Liskin, security expert at Kaspersky Lab.
Other online threat statistics from the Q1, 2018 report include:
- Kaspersky Lab solutions detected and repelled 796,806,112 malicious attacks from online resources located in 194 countries around the world.
- 282,807,433 unique URLs were recognised as malicious by web antivirus components.
- Attempted infections by malware that aims to steal money via online access to bank accounts were registered on 204,448 user computers.
- Kaspersky Lab’s file antivirus detected a total of 187,597,494 unique malicious and potentially unwanted objects.
- Kaspersky Lab mobile security products also detected:
- 1,322,578 malicious installation packages.
- 18,912 mobile banking Trojans (installation packages).
To reduce the risk of infection, users are advised to:
- Keep the software installed on your PC up to date, and enable the auto-update feature if it is available.
- Wherever possible, choose a software vendor that demonstrates a responsible approach to a vulnerability problem. Check if the software vendor has its own bug bounty program.
· Regularly run a system scan to check for possible infections and make sure you keep all software up to date.
- Businesses should use a security solution that provides vulnerability, patch management and exploit prevention components, such as Kaspersky Endpoint Security for Business. The patch management feature automatically eliminates vulnerabilities and proactively patches them. The exploit prevention component monitors suspicious actions of applications and blocks malicious files executions.