Sunday, 30 September 2012

Sound Design

Sound Design - Task

4 original voice patches and sequence them.

1 - Produce a fat bass, the voice patchess for subtractor zyp file format.

Rules only main wave forms.

ADSR - Duff duff duff - short attack, or dooooossssh longer release.

2 - Produce a Bright bell sound

Shape of the sound refelected in the wave you use. A bell would be a sharp sound, triangle can suit but need boosting. Piiiiiiing -  more release or more sustain. Ping - short release

3 - Produce a chromatic percussion- drum sound with a pitch, xylophone, wood blocks, percusive and chromatic.

4 - Produce a Piano/organ.

Create four subtractor synths, with a 16 bar loop with all the sounds. 


Subtactor-

Anologue synthesiser but its not really its digital.


Live Sound

Live Sound 

Live sound is a really challenging lesson. Sound and production skills is very technical and hands on with the hardware where as live sound is very hands on and focused more on application of our knowledge. 

Todays lesson we had the challenge of setting up a mixer, a mic, a foldback monitor, line level instrument with di box, and fx unit. 

We had to use prior knowledge in order to accomplish this task. 

 DI stands for direct injection it's used for line instruments that have a lower output then a mic instrument. 

Line is quieter and samplers, guitars, bass, keyboards and kaos pads are examples of line instruments. 

In the 60s/70s DI boxs where uused to boost line level signal to match that of the microphone so we can mix with mic and get a balanced mix. DI boosts the output. 

I has an earth switch used to cut out hums in the studio. 

Pad switch/+4+6 - if signal isn't boosted enough or is boosted too much then a pad can be used to reduce the signal or a +4/+6 boost can be used to increase. 

Most are mono but some are capable of stereo out. 

DI boxs have jack inputs, and xlr inputs and outputs.




Friday, 28 September 2012

sound production and studio skills

Sound Production and Studio Skills 
28th September 2012

Today we went round each of the three studios with the task of setting up a microphone and headphone amp in each, record a sound and play it back through the monitors and head phone amp.We had a limit of 45 minutes per studio. The analogue studio I'm getting quite familiar with. I felt most confident setting this studio up and troubleshooting any problems. In the digital studio it was quite easy to set up I'm slightly less confident in this studio as there seems to be a lot to set up and learn on the desk. The Command unit seems to be quite easy to set up the mixing surface is actually a control surface specifically designed for use with logic. The pre amp is on a rack next to the surface and is used to set gain and select channels (i think the input channel). I need more time in this studio as I have only been in it once.

As each studio has different hardware each one has it's own challenges. 

Command Unit                                

http://cdn.synthtopia.com/wp-content/uploads/2007/11/c-24.jpg

Has a control surface
not a mixer

Bus 7/8 - 
To send audio back to 
wall plate needs to be output
in logic on bus 7/8

If you restart the mac
you cannot log on
hold power button 
and keep pressed

the preamp is a rack 
on the side of
the desk

Mackie


The mackie desk has
two banks

1-24 which is to record
and 25 - 48 which
is for playback

9/10 aux phones

fat channel (additional side monitor) = 
check sound is 
routed to logic

select 'main' 'master l+r'

Analogue

Theres an on switch for each channel

Groups + Buses
each channel has a group to send
press 1-2 to send to bus 1-2 pan l+r
because it sends out and in to tape 
machine

'mix' button is for monitoring sound

mix output (main volume fader)
copied and seent to headphones

Class

We worked through each room setting up a mic, stand, headphone amp, logic, recording a track and playing back in each studio. I hadn't been in the command studio before so there where a few teething problems as I was unaware of the pre amp rack, hadn't used this type of control surface before, and hadn't had hands on experience setting up the buses. With Robs help got to understand it very quickly. The analogue studio I've had a good bit of experience with, and the digital mackie I've only had a brief amount of experience with.

I need to get some more experience in the digital studio as I'm a little unsure of the bank selects and sending sound out of logic through the desk.

We talked about upcoming tasks we will have to learn in mic technique

- Vocal and percussion

- electric and bass guitar with amp

- electric and bass guitar with DI box

- Keyborad - recording the audio while also recording the midi

Basic mix:

A band wiith a drumkit, mixing is core in unit 25.


Thursday, 13 September 2012

Reason - Getting Started with sound creation

We've started looking at how to use Reason. I think this is just because of it's ease of use and the ability to be able to look at the back end of the simulated hardware and change the routing by moving around the cables.

When you load Reason your give it's default screen. For our purposes we want to set up a blank starting point.

In the preferences we need to change the default song to empty rack.




We then open a new track.


First we create a 14:2 mixer, thats 14 mono channels and 2 stereo channels.



Next we create a Subtractor synth


We also need to set up out keyboard so we can play notes back. 

In order to do this we go into preferences again 



Where it says general we select keyboards.

]

To connect the keyboard firstly click add.


You can select Manufacture under the drop down it will give a few different brands, you can also click on <other> and find it automatically. 


Once you've found your keyboard controller and added it correctly press ok and exit back into the main Reason screen. You should be able to press a key down and it will play back a sound. If it's the default pre set on subtractor you should get a bass sound playing.

Subtractor has pre sets built in for different sounds, these are sounds some one else has created and designed. If we change the settings of these patches we are manipulating the sound, if we use the pre set we're using someone elses work. 

We want to learn to make sounds from scratch which will be entirely unique to for us to use. So we initialize the patch, ie reset everything. 


No we will have a completely fresh starting point. 

Sound Creation

Wave Forms:

We discused the four main wave forms Sine, Saw, Triangle and Square. 


Sine has little or no harmonic content.

Square has a lot of harmonic content often used for synthesis, bass.

Triangle has little harmonic content

Saw/Ramp has a lot of harmonic content and is also often used.

ADSR

We also talked about ADSR. It stands for Attack, Decay, Sustain and Release. The envelope changes the way sounds triggered.


When we activate a note, the attack determines how long it takes for the sound to start from when the note is pressed. A short attack would mean the note would sound instantly a long attack would mean it would take longer for it to reach the highest level set. Decay is the amount the sound drops after the initial hit. A high level decay and long decay the note would sustain at the highest volume. If you dropped the decays level below that of the maximum attack the sound would at first sound loud and drop down quieter while the note is pressed. The sustain is how long the note is held and the release is how quickly the sound attenuates to unity gain A long release would mean the sound would continue after being released where as a short release would mean it stop instantly. 

Other Factors

Pitch, tone and volume also play a part in sound design but we haven't started to look at that. Being able to adjust a sounds ADSR you can create many different sounds and effects using any simple waveform. 

We adjusted the ADSR to see there effects in the amp envelope of subtractor to hear the dfferences in sound.

Future Assignments:

We will have to make 4 seperate sound patchs for our first assignment. 

A simple bell sound, no effects, quick attack, a singular bell ring.

A sound that is of chromatic percuasion a sound that has no pitch to it/ Xylophone or wood blocks would be an example. 

A slow lazy bass.

And an Organ - which is more difficult ro make.

This willl in a 16 bar loop format. 4 track of each sound.










Tuesday, 11 September 2012

Sound Production and Music Recording Skills Part 2

Sound Production and Music Recording

Part 2 - Microphones


We spent the last part of the lesson looking at microphones, their specifications and their uses. There are many different specifications that effect how a microphone performs. If we know the specifications for how different mics work we can choose the best microphone for a job and later as we learn the sound of different mics be able to choose which ones we would like to use. 

Design Type:

Dynamics - More robust, durable, can take a beating, can handle loud sounds.

The SM58 is the "industry" standard dynamic mic good for live or studio
Can be bought for around £60


Capacitor/Condensor - easily broken, more sensitive more detailed sound. Require Phantom Power of 48v.

A Se se2200a condensor mic (a good first mic)
Can be bought for about £150


.Valve - A lot more expensive, very sensitive, create a smoother sound.

Se Gemini 2
Can be bought for about £845

Sensitivity - This is how easily the mic can pick up quiet sounds. Some aren't very sensitive as they are designed to capture very loud sounds such as a kick drum. 

AKG D112 Dyanmic mic. The "egg" designed for kick drums.

Frequency Response - This is how well a mic will pick up different frequencys , usually from 20Hz to 20,000Hz (range of human hearing). Some mics can operate beyond this range. Some cannot cover the whole range of human hearing. 


Polar Patterns - Defines how well a mic picks up sound from different directions. Some Mics have switchable polar patterns. 


Omni mics can capture multiple singers in one mic, or be used to capture reverb, Cardoid capture from the front of the mic only which reduces spill in a loud environment, Bi directional captures both sides and can be used for two vocalists and mid side techniuqe.

Buttons/Switchs - These can vary performance and include:

a) On/Off (cheap mics)

b) Polar Patter

c) PAD button - Makes the mic less sensitive to low frequencys and can create a boomy effect in vocal performance. (40/80 cut)

e) Presence Switch - Boosts response in higher frequency range (2-8KHZ) to add presence to what is being miked. 

Quality - Mics range in quality and the components can effect the sound captured. Top end mics like Neumann can cost £1500 or more. 





Monday, 10 September 2012

Sound Production and Music Recording Skills Part 1

Sound Production and Music Recording Skills

Lesson 1 - Monday 10/9/2012

Part 1 - Headphone Amp and Monitoring Playback.

We started todays lesson by talking about headphone amps and reasons for their uses. A headphone amp is used to make the sound coming from the control room to the live room louder, boosting the signal so that it can be split between multiple headphones.

Every studio will have small or large differences in equipment, design and space. Being aware of this will enable one to be flexible and quickly adapt to new situations without having moments of panic and not knowing whats going wrong.

Following up from the diagram last week of signal path in order for the headphone amp to be connected the sound needs to be routed from the control room back into the live room via the wall plate.

We were show 2 set up diagrams for (i think) a digital and analogue control room, to show the signal flow from the control room to the wallplate (picture above)

102 Command -


106 Analogue

(spelling error should read analogue)

Practical Exercise

Today our practical exercise was to set up a microphone for recording and monitoring, with knowledge of the signal flow through the patch bay, mixer, into the mac/pc running logic, and the signal flow back into the room. We also started using the patching bay to change the signal flow into different channels. 

For referencing purposes I have made a diagram cutting down the equipment to the bare essentials for this task in order to make following whats going on a lot easier.

The "essentials" for this task.

A vocalist would sing into the microphone, the microphone converts the acoustic sound energy into electrical sound energy, which travels down the xlr balanced cable to the snake box. A balanced lead will enable hum and buzzes to be eliminated, we touched on the fact one of the L or R is inverted phase (which we will cover later) is the reason this is possible. The 3 pin xlr cable then goes into the snake boxes first input, which is connected to the wall box which, in turn, is connected to the patch bay. 


Snake box - Input 1 is broken/doesn't work and we had problems
with input 2, input 3 was what we found to a reliable input for us to rely on.


In a real studio situation some initial problems usually occur when trying to get a sound in the control room or mac/pc. For example the microphone might not work, cables by being twisted and wrapped up can be damaged as inside it is copper which can be broken. Some inputs might be broke, pins on xlrs can break a myriad of problems can occur in any sound situation and sometimes it can be even get to the point where recording sessions can get cancelled.

Now the patch bay in this studio is set up so that the top row of inputs is connected to bottom row of the inputs at the back, this is true for every plug in the patchbay except for the blue labelled ones.. The top row of inputs(which is yellow in this studio) are numbered 1-24 to match all the inputs on the snake box. The bottom output row (also yellow) are numbered 1 -24 and go to the input channels on the mixing desk into inputs 1 - 24.  

Patch bay with a cable redirecting the signal from input 3 to output
4 on the mixing desk. You can also see the blue sections which aren't connected top to bottom.

The mighty mixing desk.

Problems can occur at any point during the signals flow. Considering the patch bay has many many cables if you could have a manager in a studio who at the end of the night might unplug or change the patching in the bay which would lead to major problems with getting the signal flow to the mixing desk!

In this analogue studio the sound is not only patched into the input of the desk, but each channel then outputs to a reel to reel machine and comes back into the same channel to enable the use of this lovely piece of equipment to capture that tape sound and still use our fancy hardware and digital tools. 

Close up of channels on mixing desk.

This row of 5 buttons on each channel is very important. 

The MIX button at the top enables or disables the ability to monitor the sound through the amp and speakers in the control room. If theres no sound coming out the amp and speakers, in this studio, it's possible the mix button isn't pressed.

The next four numbers are the bus buttons. Pressing one of these will send the signal to the bus on the mixer, now for this mixer it's essential as I mentioned above there is a reel to reel machine in this mix. In order to send the signal to the mac/pc you must press a button down to send to the bus and raise the volume of the bus to get a signal to the software. If the sound isn't coming from the channel into the bus then it's possible you might have the wrong button pressed, it may be panned to the wrong channel or the gain might not be set high enough.

There is a pan control above these buttons, if it's set in the middle the signal will go to both Left and Right and the 1-2 button is pressed the signal will go to channels 1 and 2 on the bus. If it's panned right it will go to bus 2 and if panned left it will go bus 1. From the bus 1 output it will go to the input 1 of the AD/DA interface. Bus 2 output would go to bus 2 of the AD/DA interace and so on. If the 3-4 button was pressed the same principle applies, depending on panning will determine either bus 3 or 4 and the output would go to the corresponding AD/DA interface input. If theres no sound travelling from the bus to the computer it might be that the wrong input is selected on the daw which needs to match the AD/DA output, which if the sound is coming into bus 3 it would be going out into channel 3 on the AD/DA input.

Bus/Sends - This is where the signal comes from the channel and 
into the AD/DA interface due to the analogue nature of this 
study.

On the computer side of things we have logic loaded up with an empty template. We press the plus button on the top left where the tracks are usually and this creates a new track. In order to record we need the enable record checked and we need to select the channel input to match up with the bus the sound is coming from.

You would set the channel fader volume to 0, the bus level to 0 and adjust the gain on the channel until at the performers loudest performance there was no peaking. Maybe at 12 o'clock maybe a little more. 

DA half rack unit turned on

The mix out from the mixer travels to the half rack sized DA input/output and goes to the wall plate in the live room. If this isn't turned on no signal will be sent to the wall plate and neither the headphone amp or the headphones will pick it up. 

wall plate with xlr to jack cable

The wallplate connects to the headphone amp with an xlr to jack cable. The headphone amp is essential for live monitoring as many people might need to be listening at the same time to the mix being played. If it was a band for example monitoring can be highly useful. A guitarist might want to be able to hear a clean and distorted tone, a vocalist might need to overdub the vocals after the musics recorded having closed headphones (to prevent sound leakage into the mic) would enable them to sing in time with the song. Instruments might need re recording and this would also enable them to re record in time with the song. 

The musicians might want to hear different mixes while playing together, a guitarist might want his guitar louder so he can hear what he's doing, a vocalist might not want to hear his vocals while singing (or he might want to). These are possible without effecting the final mix (we haven't touched on this in depth yet).

Headphone Amp on a Piano

The headphone amp was connected with a IEC power to the wall power socket. The headphones are plugged into the output. 

Now if all is set up correctly we should be able to sing in to the microphone, hear a sound throught the speakers in the control room, record in to logic, listen to whats being recorded/played through the headphones in the live room. 

Hypothetically let's talk this through. We have the mic plugged into the snake input 1, this is coming through the patch bay to the mixer. We have a drummer playing and can hear him over the monitors. We press the 1-2 button, pan the channel left and we have the signal coming through the bus into the AD/DA interface. We create a new track in Logic naming it drummer, selecting input 1 and record him playing. 

Using the same microphone in the same input we get ready to record a singer. We pan the mic to the right and we've changed the bus from 1 to 2. We create a new track in logic selecting input 2 (making sure enable record is always checked when we want to record) and name it vocals. The singer has the headphones on and sings along to the drum track while we record it in to it's own channel. 

Or instead of panning the track what we could do is using the mic in the same no 1 input on the snake is to connect a cable from patch bay input 1 from the wallbox to out put 2 to mixer channel 2 on the desk. We could then select 3-4 pan left on channel 2 and the signal would be sent to bus 3 and to the AD/DA interface 3. We would have to create a track with the input number 3 corresponding with the AD/DA interface. 















Wednesday, 5 September 2012

Week 1 - Diary

Week 1 Diary Entry

I've found my first week as a mature student studying Music Technology entralling. I have already picked up a lot of new information that I didn't know and have gained some hands on experience with various pieces of equipment. 

I'm excited at the prospect of learning a lot through out the course and have already learned things that I can apply to my own musical endevours. 

The class seems to be comprised of a variety of young people who have different tastes and interest which will be very beneficial to my learning.

I feel very prepared as previous to the course starting I had started reading various books on recording, mixing and sound engineering techniques and having guided learning is helping to "lock" this information together in my head. 

The tutors we have are excellent and seem to be working in conjuction to give us a good understanding of the subject without them repeating what the others have said. 

Malcom mentioned he hopes that we will leave the college praising the tutors which will attract other students, well in my case this has already happened. Many of the successful musicians I have met and worked with have been through this course and all speak highly of the tutors. 

I'm hoping to maintain a high level of discilpline through out the course and am aiming for distinction grades. 

Overall the college is immense imho. The facilities are top quality, the resources comprehensive and the staff seem to really care about us working hard and achieving out goals. 

I'm concerned about my ability to use Mac computers and will try and see if the lrc can give me a brush up on using one, and having only used ableton since the start of the year it's going to be a challenge to learn other daws such as logic, reason, pro tools and the like. Although these are all multitrack recorders in essence the way each one works is quite different so it's a challenge I'm looking forward to taking on. 

It's going to be great to get experience an qualifications in an area I really love and enjoy and the way all the tutors are focused towards working in the industry and making money is reassuring as I wish to persue a career in the music industry.