Working from home, be Shure to use a MV5C microphone

Shure is known for its professional in-earphones, headphones, microphones and wireless systems and have been around for a long time (since 1925). The in-earphones can produce very high quality audio as they isolate the sound form the outside world and musicians have custom earpieces made so they fit completely into and on to the ear canal (this also allows the audio to play much more quietly which is better for the ear drums and reduces damage).

More recently conferencing systems have also become part of the portfolio very much aimed at businesses.

Now with everyone working from home, Shure has moved into the home office space and produced a microphone to suit video and voice calls, the MV5C microphone.

Shure MV5C box

There is some assembly required (screw the large sphere ended screw through the base into the microphone ball).

Parts from box

The microphone connects to the computer via micro-USB (why not USB-C in this day and age?). There's also a headphone socket at the back for connecting wired (jack) earphones or headphones so it's possible to monitor the raw input.

Back of microphone

The completed unit looks quite professional, though the ball of the microphone is made of plastic.

Microphone with Shure logo on front

The microphone should be placed as close to face of the user as possible (in front of the keyboard, the base can slide under some keyboards and still allow the keyboard to be used effectively). The voice quality is very good.

The main problem is it's very easy to pickup background noise, especially hum from hard disks (i.e. older computers with hard disks inside or backup external disks) and fans. Newer solid state disk (SSD) based systems will sound much better. It would also be possible to mount the microphone on some sound abosrbant material as the hum comes mainly via the base.

The following are 3 recordings made using the MV5C and Audacity (44KHz sampling with 32bit floats) and and images grabbed of the capture - the base line waveform amplitude shows the hum/background noise.

Desktop

The background hum can be heard, but still great quality.

Off desktop was recorded using some sound absorbing material. The hum is slightly lower.

The final version was recording while holding the microphone so isolated from the desktop (which the computer and backup disk is on) and a screen behind the microphone between it and the computer.

With each capture the background noise is reduced and placing the microphone where it won't pickup extraneous noise will make a huge difference to the audio quality - though if offline editing, then noise removal would help.

As a desktop microphone and set-up correctly (and near to the person using it), it is a very good quality mic and can make a big difference compared to poor quality mics in headphones or other devices when using video conferencing or telephony applications.

The MV5C also works with the ShurePlus MOTIV mobile recording software (free download for iOS or Android) though it will require the correct cable (i..e device to micro-USB). The software gives tools to chop audio into clips, fade in and out and save in various formats.

It retails for £115 direct from Shure though it can be found online considerably cheaper.

MIPS "open sources" CPU

Imagination Technologies who make graphics chips and bought the chip designs of MIPS have made the underlying MIPS processor design available to academic institutions for free.

The CPU has all the features (MMU, cache controllers, debug interfaces, etc.) that a modern operating system needs to run (such as Linux and Android). The actual RTL is included in the release.

This will allow the running of the CPU on an FPGA (field programmable gate array) and Imagination Technology hope that it will lead new new innovations in the Internet of Things, mobile and automative arenas.

This is the first time a complete commercial CPU has been released and is pretty innovative of Imagination. There is a site Opencores and someone did post an ARM compatible CPU, but it was pulled at the request of ARM.

Ofcom consults on mobile data strategy

Ofcom, the Super regulator, is holding a consultation on its mobile data strategy, potentially looking as far forward as 2030.

Ofcom has recently sold off spectrum in the 800MHz and 2.6GHz bands and is looking to award spectrum in the 2.3GHz and 3.4GHz in the near future as well as opening up the use of TV whitespace and even the 700MHz band (which is currently used for DTT) which would mean moving the DTT band to 600MHz (and using MPEG-4 and DVB-T2 technologies).

This can be summarised in a table: -

  

Relative priority for potential release	Bands for consideration
Current priorities	700 MHz, 2.3, 3.4 GHz, UHF white space
High	1452-1492 MHz, 1980-2010 / 2170-2200 MHz (2 GHz MSS), 3.6-3.8 GHz, 5350-5470 MHz, 5725-5925 MHz
Medium-High	2.7-2.9 GHz, 3.8-4.2 GHz
Medium	450-470 MHz4, 470-694 MHz, 1350-1518 MHz

Some of these bands are in use and therefore current users will have to migrate off them or shared use is being considered.

Newer WiFi technologies make more use of the 5GHz band (Ofcom have noted the 2.4GHz band is already congested in many areas), however the 5GHz band would have to be extended (currently the bands are either licensed or lightly licensed as some of it is used for things like military radar).

Other parts of the spectrum would be expected to be used to extend mobile usages for 4G and 5G services.

The full statement (PDF) can be found here (it's 113 pages long).

Stakeholders can respond on-line.

Spotify nows Plays on Android

Spotify has now released their app on to Google Play (formerly Android Marketplace). The app has been available from Spotify's site in beta for a while. The new features are

• Totally new app with full support for Android 4.0
• All-new slide-out navigation
• Crossfade/gapless playback settings
• Widget - control Spotify from the home screen
• Playlist folder support
• Even more social - check out friends’ profile pages and playlists on the go
• Artist imagery in high resolution
• Related artist view - available for the first time on mobile
• ‘Extreme’ sound quality setting for 320kbps listening
• Play queue
• Last.fm scrobbling
• Speed increases

In order to use the mobile version users need a Spotify Premium subscription. Spotify now gives access to over 18 million songs and is available in 15 countries including USA, UK, Sweden, Finland, Norway, Denmark, France, Switzerland, Germany, Austria, Belgium, The Netherlands, Spain, Australia and New Zealand. there are now over 10 million active users with over 3 million paying subscribers.

Moshi Monsters goes Mobile

Mind Candy, the parent company behind Moshi Monsters, has partnered with GREE to bring Moshi Monsters to the world of mobile phones. The partnership gives Moshi Monster's 60m registered users visibility and access to GREE mobile gaming platform, while GREE's 230m users are given access to Moshi Monsters. The mobile game is expected to be available by Q4 2012 and will be available in multiple languages including English, French, Italian, German, Spanish, Portuguese, Japanese, Korean, Mandarin and more. As well as having a range of best selling toys, the No1 selling children's magazine and the best selling Nintendo DS game, now Moshi Monsters is set to dominate the mobile gaming space too. Mind Candy is building an in-house team to continue mobile partnerships and development of mobile games. Moshi Monsters returned over $100m in 2011 and can only be expected to grow, they're on-track to be a £1bn company.

UK beats US in mobile internet use

It seems that the UK is beating the US for mobile access in terms of percentages of internet users.

In the UK 5.7 out of 30 million internet users access via some kind of mobile device. In the US it's only 30 out of 176 million.

The BBC seems to be the most accessed site.