![]() ![]() If you want to use the Knock Code, then go to Settings > Lock screen > Select screen lock > Knock Code and set your pattern. It divides the screen into four segments and you can create a pattern of between three and eight taps to unlock your LG G3. Pull down the notification shade and you’ll see a bunch of quick settings options along the top. If you want to change this list to suit your needs, scroll all the way along to the right and tap the Edit icon and then select which toggles you want and tap and drag to re-order them. When the screen is off, you can press and hold the Volume down key on the back and you’ll launch straight into the camera. You can also use the Volume down key to snap a shot. LG calls this feature QSlide and you can access it in your notification shade. Toggle it on and you’ll see a list of supported apps. Pick the one you want and it will pop up on top of whatever else you are doing as a wee floating window. How to share music, photos, or videos wirelessly You can minimize it, resize it, make it transparent, and drag it around to wherever you want it. ![]() If you have another DLNA device on your network, you can use SmartShare to stream content to it. Review Apple introduced hi-res lossless audio to its music service last month, but third-party hardware is required to enjoy it – if indeed the difference is audible. We took a look at the THX Onyx, a portable DAC and headphone amplifier that claims to be just the thing. There is a strange cocktail of ingredients that flavours the music and audio industry. There is a drive towards greater convenience, which means streaming music and true wireless, as popularised by Apple's Bluetooth-driven AirPods, first introduced in September 2016. Then there is a push towards higher quality, with vendors touting higher resolution such as 24-bit 192kHz digital, or exotic formats such as DSD (Direct Stream Digital), MQA (Master Quality Authenticated) – all of which are supported by the THX Onyx – and Dolby Atmos/Spatial audio, which is a new approach to surround sound. These two demands sometimes pull in opposite directions. Streaming audio has largely meant lossy compression, formats such as MP3 and AAC (Advanced Audio Coding), which reduce data size by omitting parts of the signal that are inaudible or hardly audible. Wireless has largely meant Bluetooth audio, for which none of the available codecs are lossless. The box warns of inadvertent high volume when setting up Lossy compression at levels like Apple's 256 Kbps AAC is excellent and not an issue for most people yet there remains the nagging annoyance that it is potentially compromising quality for the sake of convenience and efficiency. This is a USB-powered DAC designed for use on the go. What you get is a DAC and headphone amplifier in a slim metal case, about 60mm long, with a 3.5mm jack socket at one end, three LEDs, and a short cable at the other terminated by a USB-C connector. A magnet on the case keeps the cable tidy when not in use. In the box is a USB-C to USB-A adapter, while for iPhone a slim Lightning to USB Camera Adapter is needed – not the wide USB 3 one, which will not work because it does not supply enough power. Another annoyance is that headsets with mics will not work for calls on an iPhone, though conferencing apps like Zoom do work. ![]() On a desktop PC or Mac, or Android with USB, everything works fine, and a recent iPad with USB-C works fine too. Plugging THX Onyx into an iPad and using trusty Sennheiser HD600 headphones was quite a revelation, same with a Sony NW-A105 Walkman, even though the Sony has a high quality DAC of its own. Most of our testing was with Apple Music lossless or with a variety of lossless and high-res files on the Sony or on a PC including DSD and MQA. Notable versus the official Apple headphone adapter or most cheap adapters (the Apple one only costs pennies after all) is that the bass sounds deeper and richer, the sound opens out and small details are more apparent. The other big deal is that it goes loud – louder than anyone would want on normal music. The secret here is not so much the format flexibility as the built-in amplifier, called THX AAA-78, where AAA stands for Achromatic Audio Amplifier, and is specified for headphones with impedance from 22-1,000 ohms. ![]() The HD600 has an impedance of 300 ohms which is too high for most lightning or USB-C headphone adapters. ![]()
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