Tag Archives: user

Interview: Microphones at Deakin University, Australia

Ben Sleeman
Service Development Assistant
University of Greenwich

AETM Conference 2017 and university visits, Melbourne, Australia

Ben Sleeman was funded to attend this event as a 2017 UCISA bursary winner

Whilst attending the Audiovisual and Education Technology Management (AETM) Conference in Australia, courtesy of a UCISA bursary, I also visited five Melbourne universities: Deakin University, Monash University, RMIT, Swinburne University and the University of Melbourne.

At Deakin University, I discussed the use of microphones in teaching and learning spaces with Jeremy West, Senior Audio Visual Engineer and Tech Lead in the eSolution Team (interview below).

This use of microphones is another evolving technology at Deakin, where they have been integrating, amongst other technologies, Shure beam-forming microphones sending audio over the network back to the DSPs so it can be fed back into the lecture capture system and hearing impaired solutions.

Other areas I discussed with Jeremy included Deakin University’s new audio video technologies.

Interview: Deakin University’s support of hearing impaired users in teaching and learning spaces

Ben Sleeman
Service Development Assistant
University of Greenwich

 

 

AETM Conference 2017 and university visits, Melbourne, Australia

Ben Sleeman was funded to attend this event as a 2017 UCISA bursary winner

I attended the Audiovisual and Education Technology Management (AETM) Conference in Australia in November as part of the UCISA bursary scheme. During my trip I also visited a number of Melbourne universities including Deakin University.

At Deakin University, I met with Jeremy West, Senior Audio Visual Engineer and Tech Lead in the eSolution Team, and we discussed the university’s AV solutions for hearing impaired users.

Deakin are considering a range of new technologies and in collaboration with the digital futures team, they are looking at audio over IP solutions to give users access to audio streams via their mobile devices.

I have blogged about my conversations with Jeremy on a range of AV developments at Deakin University.

 

Interview: Deakin University’s AV solutions

Ben Sleeman
Service Development Assistant
University of Greenwich

 

 

AETM Conference 2017 and university visits, Melbourne, Australia

Ben Sleeman was funded to attend this event as a 2017 UCISA bursary winner

As part of the UCISA bursary scheme, in November I attended the Audiovisual and Education Technology Management (AETM) Conference held at the University of the Sunshine Coast, Australia. I also visited five universities in Melbourne including Deakin University.

While visiting Deakin University, I was able to interview Jeremy West, Senior Audio Visual Engineer and Tech Lead in the eSolution Team. He kindly answered questions about a range of topics including how new audio video technologies are coming to Deakin University and how these technologies converge with other IT solutions.

In the interview, Jeremy talks about how Deakin University is moving its traditional audio/video over HDBaseT to over IP solutions. He also talks about moving to cloud control for AV teaching space control and using analytics that come back from these systems to improve academic user experience. Collaboration has been key to this move to IP AV solutions, working with their network engineering and systems teams.


I will be blogging about my further conversations with Jeremy on other AV developments at Deakin.

 

Disruptive statistics, Linux containers, extreme web performance for mobile devices

Giuseppe Sollazzo

 

 

 

Giuseppe Sollazzo
Senior Systems Analyst
St George’s, University of London

 

 

 

 

Day one at the Velocity conference, Amsterdam

What a first day! O’Reilly Velocity, the conference I’m attending thanks to a UCISA bursary, is off to a great start with a first day oriented to practical activities and hands-on workshops. The general idea of these workshops is to build and maintain large-scale IT systems enhancing their performances. Let me provide you with a quick summary of the workshops I have attended.

Statistics for Engineers
A statistics workshop at 9.30am is something that most would find soul-destroying, but this was a great introduction on how to use statistics in an engineering context – in other words, how to apply statistics to reality in order to gather information with the goal of taking action.

Statistics is, indeed, very simple maths and its difficult yet powerful bits allow practitioners to understand situations and predict their outcomes.

This workshop illustrated how to apply statistical methods to datasets generated by user applications: support requests, server logs, website visits. Why is this important? Very simply because service levels need to be planned and agreed upon very carefully. The speaker showed some examples of this. In fact, the title of this workshop should have been “Statistics for engineers and managers”: usage statistics help allocate resources (do we need more? can we reuse some?) and, in turn, financial budgets.

The workshop illustrated how to generate descriptive statistics and also how to use several mathematical tools for forecasting the evolution of service levels. We have had some experience with data collection and evaluation at St George’s University of London, and this workshop has definitely helped refine the tools and reasoning we will be applying.

Makefile VPS
This talk presented itself as a super-geeky session about Linux containers. Containers are a popular way to manage web services that does not require a full-fledged physical or virtual server. They can be easily built, deployed, and managed. However, they are rarely properly understood.

The engineer who presented this workshop showed how in his company, SoundCloud,  they build their own containers to power a “virtual lab” in order to simulate failures and train their engineers to react. His technique, based on scripts that build and launch containers at the press of the “Enter” button, is an effective solution both for quick prototyping and production deployment whenever docker or other commercial/free solutions are not a viable option (due to funding or complexity).

As much as this was quite a hard core session, it was good to see how services can be run in a way that makes their performances very easy to manage. This is definitely something that I will be sharing with my IT colleagues.

Extreme web performance for mobile devices
A lightweight (so to say!) finale to the day, discussing how mobile websites present a diverse range of performance issues and what techniques can be used to test and improve. However, the major contribution from this session was to share some truly extraordinary statistics about mobile traffic and browsers.

For example, the fact that on mobile 75% of traffic is from browser and 25% from web views (i.e. from apps) – 40% of which is from Facebook. Of course, these stats change from country to country and this makes it hard to launch a website with a single audience in mind. For universities, this becomes incredibly important in terms of international students recruitment.

Similarly shocking, we have learnt that the combination of Safari and Chrome, the major mobile browsers reach 93% on WiFi networks but only 88% on 3G networks; this suggests that connections speeds still matter to people, who might opt for different, more traffic-efficient browsers in connectivity-challenged environments (for example, OperaMini goes up from 1% to 4%)

One good practical piece of advice is to adopt the RAIL Approach, promoted by Google, which is a user-centric performance model that takes into consideration four aspects of performance: response, animation, idle time and loading. The combination of these aspects, each of which has its own ‘maximum allowed time’ before the user gets frustrated or abandons the activity, requires a delicate balance.

There was also some good level of discussion around the very popular “responsive web design”, a technique that has become a goal in itself. The speaker suggested that this should be just a tool, rather than a goal: users don’t care about “responsive”, they care about “fast”. Never forget the users is a good motto for everyone working in IT.

Summary
Velocity’s first day has been a very hands on day. The overall take-home lesson is simple: managing performance requires some sound science, but with adequate tools and resources it’s not impossible to do it on a shoestring budget and in an effective way. As I’m an advocate of internal resource control and management with respect to outsourcing, today’s talks have surely provided me with some great insight on how to achieve this smartly.

Aside from this summary, I’ve also been taking some technical notes, which are available here and will also contain notes from the future sessions.