Page 1

Audio Routing for my PC

For my own benefit as much as anyone elses, I thought I’d document my PC audio setup. I have two soundcards and two sets of speakers, one surround soundcard and speaker set for gaming and watching surround sound movies, and one audio interface linked up to my studio monitor speakers for music production. I also have a Digi 002 mixer which I use to mix in the outputs from my synthesisers to my recording interface. When I want to record, I usually record one track at a time from a synthesier to the audio input of the audio interface, via the Digi 002 mixer:

Untitled Diagram

These are the audio cables needed for this setup, some of which I will need to order in shorter sizes than the 3m ones I already have, to reduce cable clutter:

single phono to phono
2x phono to 2x phono
single phono to phono
single 3.5mm jack to phono
single 3.5mm jack to phono
2x phono to 2x phono
2x phono to 2x phono
2x phono to 2x phono
2x phono to 2x phono
2x phono to 2x phono
2x phono to 2x phono

Fish Shell Scripting

A few months ago I switched across from Bash onto the Fish shell, on my main development machine. I can’t get enough of its fast autosuggestions and its sane scripting language. Compared to Bash it is very fun to use.

Today I wrote a script to automate the backup of my development workspace onto a private bitbucket account. Bitbucket is good because it allows unlimited private repositories, but it caps the size of these repos at 2GB max, with some features disabled after 1GB. This means that I want to find out the size of my repo before automatically backing it up. This script does this:

#!/usr/bin/env fish

set size (du -sm . | awk '{print $1}')
echo "Workspace is $size MB"
if math "$size > 1000"
  echo "Workspace too big to commit!"
  exit
else
  echo "Workspace is under 1GB, OK to commit"
end

git add .
git commit -m "Automated backup"
git push origin master

Each individual directory additionally usually has its own git config which is synced to the separate repos for the code I’m actually working on. But if my development machine is stolen or somehow destroyed, or I want to quickly replicate my environment on another machine with access to the original repos, then I can regenerate the associations between the different directories. It also makes me mindful of not committing images or other video assets.

ADAT with Digi 002 Consoles – Don’t throw them away just yet!

So I got given a Digi 002 console version, which looks like this:

Digi 002 Console

A fairly old style digital audio interface and mixer, which was all the rage back in 2002 when it first came out, but now is often found sitting in the skip. Why? Because it is a Pro-Tools inteface, and Avid stopped supporting it about 5 years ago, so it won’t actually work under Pro Tools and Windows 10 (believe me, I’ve tried!). It only works as a recording interface through Pro Tools, so you can’t just connect it via firewire to your PC and expect it to work.

It does have a stand-alone mode though, which allows you to use it as an analogue mixer, and that is pretty useful in itself if you want to drive monitors or record things from the master out. However after digging around on internet forums for a while, I figured out a way of actually using it as a recording interface! This is through use of the ADAT output, allowing you to plug it into a ADAT capable soundcard and record seperate channels over optical.

Caveats: it has to be 44.1khz sample rate, and you still have to use the Digi 002’s analogue to digital coverters in the chain, which are pretty old now!

If you’re willing to live with this, and I was considering what the console cost me, you get an extra 8 audio input channels in your soundcard! Well worth the effort I’d say.

To set it up with my Focusrite Sapphire 24 Pro, I followed the following advice from the Focusrite forum. This should work on most of the Sapphire range of soudcards.

A Basic Eurorack Technique

I thought it might be of some interest to describe how I use my Eurorack, at lot of the time, in making tracks. I have a 3 oscilator – 3 VCA – 3 filter Eurorack which I use primarily so that the oscilators initially work in unison mode with some slight detuning. I typically use a single loop, arpeggio or pattern that I repeat over the song. Then, partway through a track, I will transpose the octaves of the oscilators and vary the sustain of the envelopes, along with the filters and pulse-width modulation amount, to make a morphing yet harmonious sound texture progression.

Here is my Doepfer Eurorack, which has 2 oscilators, the third is provided by a Doepfer Dark Energy MK1 semi-modular synthesiser that is wired into the Eurorack.

eurorack

Here is the patch I almost always use:

Eurorack Patch Diagram

Here are some examples of where this same basic technique has been used:

Goals of 2015 Summary

2015 goals written on a whiteboard

At the start of 2015, I wrote down some goals for 2015. Around half-way through the year, I revisited these goals with some thoughts on how well I’d done. Now 2015 is over, I want to reflect on what has been achieved and what hasn’t.

I also want to comment on the fact that I am discussing personal things here. A few years ago I was decided that I was going to keep this blog professional and pretty much dry of any thoughts or feelings on my personal life. I have moved away from that though, inspired by blogs such as Iain’s, where personal thoughts and feelings are mixed with technical observations. I would like to think that this isn’t a bad move; after all if potential employers come to look at this 5 years from now, and don’t like what I’ve done here, then I probably don’t want to work for them anyway. There is the argument that blogs should be ‘themed’ or targetted towards a particular subject to garner followers, and that too much sharing is possibly a bad thing. However, my current thoughts are that dry techncial info is boring, and I’d rather mix it with other things that are important to me.

Retrospective for 2015

With that said.. 2015 was an eventful year, some things were awesome, some not.

The “Not Awesome”

My mum started treatment for cancer, which is a non-curable kind, Myeloma. The treatment was a success and she is currently in remission for the time being, so that is a good thing, but how long she will stay in remission we do not know. Both my remaining grandparents also sadly passed away. I also split up with my girlfriend of 5 years, which was difficult and still haunts me to a certain degree.

The “Awesome”

The money that my parents were going to put towards the wedding of the ex-girlfriend, they gave to me so I could put a deposit down on a house. So in August I bought and moved into a house in Withington, which I am in the process of doing up. It is *incredibly* cheap to buy in Manchester compared to the south-east of England, where I’m originally from, where the dream of having my own 3 bed, semi-detached house would not be possible in any area with a reasonable number of IT jobs in short distance. I don’t drive, so the fact that the tram stop is 10 minutes walk away is great for getting to work.

I met my current girlfriend, Conny in May, and things seem to be going very well; she is even planning to move from Berlin to Manchester to live with me. This is obviously great, and I don’t know where I would be without her support.

Work

With all these things happening in my personal life, work took a secondary focus as I got things sorted. It also made me rethink what I wanted from my career. At the start of 2015 I had a new role, as Test Manager; the first level of technical management in my area at the BBC, and a big career move for me. Although I liked some aspects of the management role, I missed the technical challenges that had pretty much characterised the last 10 years of my career. There was not much direct coding, and I felt I was in danger of losing that aspect of my work. I took a 6 month attachment to R&D, which had me working in an extremely challenging technical role, on a HTML5 360 VR engine. In April when this attachment ends, I am looking to continue in a technical role of some description, and not return to pure management, at least for the meantime.

Goals of 2015 – How Did I Do?

Work Goals

  • Settle into my new role at the BBC as Test Manager – As I mentioned before I’ve taken a move towards another route in my career
  • Pushing for a place to be opened up in Platform Test to employ someone from the Extend Scheme – This was achieved, and Ben has joined the BBC on an Extend placement.

Creative Goals

Social Goals

Financial Goals

  • Saving more over the course of the year – Partly achieved. I have bought a house, so now I am in a quite a bit of debt, but the money I will be putting towards my mortgage will be money I am effectively ‘saving’ because it will be put into the value of the house.
  • Joining a pension scheme – Achieved.

Health Goals

  • Adopt a regular form of keeping fit – Partly achieved. I have now setup a return commute which involves walking past a gym that I’m a member of, so it is quite easy to go in there for 30 mins on the treadmill 2-3 times a week. I’ve just got to maintain the discipline.