Week 4 Audio Arts - Acoustic Guitar Recording

Jamie and I recorded acoustic guitar in several different ways in the dead room. In all cases the microphone(s) were fed into the mackie desk preamps and then to protools. Levels were matched as best as possible using preamp gain on the way in, and then more accurately in logic for a fair comparison.

The microphones used were:

• Rode NT5 - small diaphragm condenser
  
• Shure SM57 - small diaphragm dynamic

Samples:
NT5 at 2 inches

Nice solo hi-fi sound with plenty of treble and bass. Perhaps too much bass due to proximity effect.

SM57 at 2 inches

More punchy but less detailed on the transients compared to NT5. Less treble and bass. Perhaps a solid sound to sit in a mix nicely without too much extraneous treble and bass information. More preamp gain needed.

NT5 1 metre back

A more natural sound focussed in the upper mids with less treble and bass. More lo-fi vibe that might be very nice in some production styles.

NT5 1 metre back and positioned sideways

Seems quite scooped in mids compared to above sample. Mainly included to demonstrate the differences with above sample.

2 NT5s in coincident stereo, approx 90˚ angle between mics and 30cm back

Stereo image seems very unstable. Perhaps the mics were too close or at too great an angle. Unwanted string/finger/fret noises seem to be exaggerated.

Week 4 Forum - Student Presentations Part II

This week we heard work by the remaining 2nd and third year students.

The first presentation was about a granulator processor coded in max/msp. It was extremely cool. I think it could be a really interesting live performance tool because it makes cool electronic sounds in-realtime using audio that is also recorded on the fly - more interesting than triggering samples.

Another interesting presentation was about some dance music that someone created. A discussion about whether max/msp was useful for listenable/commercial music followed this. Some people expressed the views that this experimental program-it-yourself software is only useful for obscure music and that using more traditional tools is a more efficient workflow for creating commercial music.

A surround-sound installation was created in an art exhibition space (by some imaginative music tech student). I thought that the project was really cool and I'd love to do something like that one day.

Finally the last two presentations were about performance art and again using tools to manipulate audio in realtime for live performance. The ambient guitar piece achieved some really cool sounds and the maker of the less ambient piece demonstrated uber micro in a furious battle with various audio software.

Reference: Stephen Whittington. "Week 4 Music Technology Forum - 2nd and 3rd year presentations." Lecture presented at the Electronic Music Unit, 27 March 2008

This post was edited to conform to the word limit policy on 3/4/08

Week 3 Creative Computing - SPEARing the paper samples

Alien Jazz

• Start with paper rubbing sample
• Rectangles were transposed and shifted to form dense tones
• Tones were dragged around to create "melody"
• Overall pitch lowered
• Sculpted existing sound to cut treble

Alien Barn Dance

• Original sample was a piece of paper being flapped
  
• Selected each flap individually and changed it's pitch using the transpose tool so the pitch increases
• Selected a chunk of audio and used transpose to turn it into a dense rectangle. Copied and pasted square and moved it to create chirping melody.
• Created synthy pad by timestretching the last flap
• Copied and pasted entire document and transposed down then moved up
• Coped and pasted entire document again and selected and rhythmically displaced frequency bands
• Copied and pasted bass hits creatively

Alien Spew

• Began with short snippet and timestretched it
• Dragged parts up and down to change pitch

Alien Greeting

• I did similar stuff to alien spew
• More copying and pasting and pitch shifting to create blips

Alien Rainforest

• Transposed all the audio down
• Cut time gaps in it to make a stuttering effect
• Selected all the audio, copied and pasted it and timestretched it to be shorter/faster
• Dragged these copies into different frequency bands at different times over the original

Alien Desert Winds

• Cut down into the audio using lasso to make a filter sweep
• Dragged rectangles of audio around to make high pitched drones
• Boosted lower frequencies

Week 3 Forum - 2nd and 3rd year presentations

This week at forum we watched presentations by second and third year students of their projects from last year. They inspired me and I look forward to the open possibilities of the course in later years.

I like the way that the film project had sections which were created with a theme in mind even if this theme is not explicitly detailed in the film. The middle section was particularly musically interesting.

The projects that involved the use of max/msp seemed like they would be practically quite different to undertake with the process being quite removed from the music, and the music being as unpredictable as is required. It seems like much of the skill is in coming up with ideas to try and then exploring what sounds can be made with your program. I think it is quite interesting that the actual musical result is not necessarily obtained by having it in your imagination and aiming for it.

For practical musical enjoyment I really like the project with Iranian vocals. I thought that it was very impressive that the entire backing was performed in one hit with only a small pre-sequenced component to it.

Can’t wait to have a crack at a longer project myself.

Reference: Stephen Whittington. "Week 3 Music Technology - 2nd and 3rd Year Presentations." Lecture presented at the Electronic Music Unit, University of Adelaide, 20 March 2008

Edited on 4/4/08 to conform to the word limit policy

Week 3 Audio Arts - Headphone Monitoring

When I was practicing creating headphone mixes, the live room was in use so I checked the results by plugging my headphones directly into the amplifier in the control room. I successfully monitored my voice through a microphone. As demonstrated by David during the seminar, the headphone mix is easily accessed in the live room via studio 2 ports 3&4.

Thoughts on Headphone Monitoring

• If monitor mixes are to be created from analog input channels then record-armed tracks should be muted in protools to avoid monitoring through two separate paths.
• Two aux sends may be used per monitor mix to provide stereo.
  
• Aux sends should be set to prefader in order that the engineer can listen to things at will without affecting musician's mixes.
• As the inserts on the mackie desk are after the recording outputs, effects may be patched into the signal path (eg a compressor) for monitoring purposes while recording the dry sound.
• It is very important for the sound engineer to pay close attention to the musician's headphone mix so that they feel comfortable and can perform to their full ability.
• The aux sends (and therefore headphone mixes) can be monitored in the control room using the aux solo button for each aux send.

References: Lokan, David - Lecture given on 18/3/08 in the EMU Space, Adelaide University

Week 2 Creative Computing - Paper Samples

I ended up with 6 finished samples.

Glitchfest

• An amalgamation of a variety of mainly glitchy segments
  
• Fast clicking is paper rubbing against itself and catching momentarily
• The pan function was used on very short snippets of audio
• The ending was created by repeatedly pasting an audio snippet but cutting it slightly shorter each time

Metallic Beat

• Created by copying and pasting a limited number of samples
  
• Samples were cut and pitch shifted to provide different drum functions
• Cut to equal length
• Reverb selectively applied

Down and Up

• Two original samples
  
• The sample was divided into segments and the pitch of each segment changed so that the overall pitch gradually decreases.
• The second section is a short snippet of ripping that was continually pasted and increased in pitch each time

Backwards Delay

• A scrunching sample with much backwards delay and reverb
  

1. The sample was reversed
2. Silence was added to the end to contain the reverb/delay tail
3. Delay and reverb were applied and bounced
4. The sample was reversed again

Sawish Groove

• After pitch shifting a sample of paper waving I noticed that there was a mild ring to it
• I emphasized the ring with an eq
• I selected sections of the sample and pitch shifted and panned them to create a disorientating effect

Short Glitch

• I took a paper hit sample and reversed only one channel
• I took a small part of this swish and looped it for a period creating a stereo stuttering effect

Week 2 Audio Arts - Startup/Shutdown procedures for Studio 2

I booked a couple of sessions this week to practice the art of safely powering up and down all the equipment. By following the instructions on the EMU website I managed to turn on the necessary equipment and achieve signal flow from a microphone and a guitar into protools without any dangerous clicks through the monitors.

The startup order makes sense because it essentially works through the signal chain towards the monitors. A pop emitted by a piece of gear being turned on is only ever transmitted down the chain to a unit that is turned off and can't be damaged.

When I began trying to patch in outboard equipment I initially had issues when I accidentally mixed up the input and output jacks on the patch bay. This should become easy to avoid as output is always a top row and input the bottom row. I monitored through the Genelec speakers, however headphone monitoring should be easy to patch by feeding the headphone amp with the mixer outputs, or creating cue mixes using aux sends. One issue in live monitoring is that a signal may be fed to the monitors through it's mixer channel and protools simultaneously. In order to avoid hearing both signals mixed (they will probably sound phasey) then either protools or analog mixer monitoring should be disabled.

Here is my test recording

References: 

• Studio 2 Guide - EMU website - http accessed 15/3/08 - http://emu.adelaide.edu.au/resources/guides/spaces/pdfs/studio2.guide.pdf
  
• Lokan, David - Lecture given on 11/3/08