Thursday, 3 May 2018

risks of health and safety

in this post i will cover the basic considerations when it comes to a live event.



when managing health and safety you must take everything in to account, from minor things like falling over/drinks being spilled etc, to the extreme such as injuries/faulty equipment. you need to identify anything that may cause harm to people or or towards the venue. a risk assessments are in order to keep everything in check, they don have to be long essays but just so that it simply spots all the hazards out.


making sure everyone leaves the event happy and unharmed at an event sometimes won't be an easy job and not everyone will follow the rules and regulations. having counter procedures for there actions like if they were to go into certain areas that are off limits what would i do to prevent that happening and what would i do if someone manages to pass through?.

risk assessments are also placed for staff is have and emergency staff are also available just incase something bad happens or a staff member needs to leave.

how would you assess the workplace?

have each area searched?
start by having the venue is properly checked throughout so there are no hazards around, and be sure to check all facilities are working. depending on the size of the venue you have to consider if something bad was to happen, how would you ensure that everyone gets out calmly and safe. each venue has to have at least 1 escape route/exit per 60 people./ 2 exits for 600 people. size of the door is important you can't use just any old door,  a 750mm door width in a normal fire risk premises has a capacity of 100 people and a 1050mm door can take 200.
there have been rare cases of people being suffocated from falling down during an event, loud music and hundreds of people dancing around and not notice you on the floor struggling for breath
 artist profile; make sure that the artists performing are safe form from any dangours that they may face, making sure that there performance area is safe and and that no one can get in the way. 
alcoholic events can be a problem if not controlled properly, drunk people can cause a lot of harm towards the event such as fighting/smashing things/ and vomiting.

duration and timing of event; venue evaluation; thing of the timing the the event should be and the weather,

whether alcohol is on sa
whether the audience is standing, seated or a mixture of both;
the movement of the audience between the entertainment and/or facilities; artistic nature of the event, single stage, multiple-arena complex, etc.



Minor
moderate
Major
Frequent
People fighting
///
///
likely
Drunk being sick
Drugs/alcohol
Faulty equpiment


remote


hitting your toe
Spilling drinks

Building collapse

this table shows some of the faults that may happen within the live event. anything in the yellow or above i would take caution to and try figure a way out how to prevent it. people often get drunk when at events and that can lead to a number of things like fighting and other aggressive behaviour. security will be set to deal with those problems. having minor  problems like someone stubbing there toe won't really be assessed because it isn't a huge problem and whats the odds on a seriously problem happening from that? theres no frequent hazards that are major, if there was the event would be cancelled.   






























Wednesday, 2 May 2018

mono v stereo mixing

when mixing you should be mixing in mono due to the fact that is something have been strongly panned Left or Right, when hearing it live you won't be able to hear the sound panned right if your on the left side of the venue.

having a guitarist on stage with am amp can be difficult to work with during the mix, having their own guitar amp on stage mean he can adjust the volume themselves. some guitarists will have there amp really close on some sort of stand

critical distance

critical distance is from the sound source where the direct and reverberant sounds clash and become equal. the more reverberant is the closer the critical distance is to the main sound source.

the critical distance will be different at all frequencies and venue.











critical distance should be as far away from the source of sound as posse;e and reverberant to a minimal keeping it even at all frequencies.

an easy way to figure out the critical distance is to play pop music through one speaker, and walk back and forth the room, this will be surprisingly easy to spot.














the more reverberant the room is the closer the critical distance
the more absorbent the room the further the critical distance
near field or direct field is inside the critical distance
far field or reverberant field is outside he critical distance













http://education.lenardaudio.com/en/04_acoustics_2.html

PA power requirements


i was given the task to calculate the the level requirements of the PA set up. the formula used in the table below was how i was able to work out the power level of each piece of equipment from Ws to amps.  


F.O.H sub
300w x 1.4 = 420W
420W / 230 = 1.83Amps x 2 = 3.66 Amps
3.66
F.O.H main
300w x 1.4 = 420W
420W / 230 = 1.83Amps x 2 = 3.66Amps
3.66
Mixing desk
80w x 1.4 = 112W
112W / 230 = 0.49Amps
0.49
Mackie monitors
1050w x 1.4 = 1470W
1470W / 230 = 6.4Amps
6.4
Wedge monitor
300w x 1.4 = 420W
420W / 230 = 1.83Amps
1.83
Yamaha monitors(1xsmall/1x large)
320w + 300w = 620 x 1.4 =868W
868 / 230 = 3.78Amps
3.78
Guitar amp
300w x 1.4 = 420W
420W / 230 = 1.83Amps
1.83
Bass amp
73w x 1.4 =102w
102W / 230 = 0.45Amps
0.45
keyboard
8w x 1.4 = 12W
12W / 230 = 0.06Amps
0.06
Feedback destroyer
1A x 1.4 = 1.4A
1.4Amps
1.4
midiverb
0.78a + 0.85a = 1.63 x 1.4 = 2.3A
2.3Amps
2.3
Total(rounded) 
26Amps


this is the link i used to work out the results.










































monitor positioning

when using stage monitors its important that they are not towards the audience. these wedges are very directional and mainly placed next to the musican so that it is facing the ear of the musicians so they can hear the music with precise.its important on where the monitors will be because facing the audience can cause feedback to the performers mic. the best way for you to use there wedges would be to give each performer there own. but some artists might not stay in one spot so this mean they would have to use side fills but these should only be used when necessary.