Monday 8 June 2015

Unit 38 Soundtrack Production for moving image

Sound task two


With sound you hear it all the time and it doesn’t just travel straight to your ears as direct sound it also radiates out and bounces back at you from surrounding objects which is reflected sound for instance one example is windows as an example of a object that has reflecting sound.


With sound there are different environments and areas you can be to receive noise level for instance if you was indoors it is a more controlled environment and generally noise free if you have the place to yourself and don’t have surrounding sound. For outdoors there is potential for loud noise for instance in a city where there is an airport this could be a factor also the public and other transport creating noise.


 In other locations for sound you could use a recording studio this is a perfect  environment for recording sound because you can get rid of any surrounding noise. But having these locations can cost and needs to be taken into account for instance for college students such as myself who has a recording studio it’s free to me but people in the real world wanting to record sound would have to pay a sum of money for studio hire. With outdoors and indoors environment it is free for everyone to use unless a filming permit is needed.


 Other than noise affecting the location environment; weather plays a part to for instance inside with rain or a stormy day the sound might get disorted because of standing near a window making sound reflection. With being outside you have to consider the wind and rain because it can distort the microphones which comes into place with meter readings. In a recording studio it is sealed off area for peoples use so you won’t have problems of weather conditions disrupting sound.


Connecting audio- with connecting audio checks it must be done to ensure connections are sound and strong. Headphones must be worn by the sound operator / recorder / technician if on location so that the sound being recorded is properly and accurately checked. This relates to the quality of the sound that is being recorded. It isn't just a case of looking at a peak meter and seeing that sound is there every Sound Technician must ensure that the sound being recorded is clear with a good quality  for editing/ broadcast purposes after.


When sound is in place with someone who is acting the sound for instance a acting dialogue it can be captured by microphones that are hidden for events such as live performances it will be hidden microphones which are fitted onto or inside a costume by this it has a wireless link to an external source this is a useful way for actors because you get direct sound but the only thing is a sound operator will have to monitor the microphone incase of rubbing on the actors clothing and the levels of clearness also is it the right place to capture the persons speech.


A main consideration is how is the actor / contributor sound being recorded or captured as said above hidden microphones these are fitted onto or inside a costume of the performer and can be recorded via a wireless link to an external source. These are useful in the sense you will get the direct sound from a performer but that the operator has to constantly monitor the microphone for the clarity of what's being recorded ie . is the mic rubbing the only thing with microphones is that one person has one mic so it costs money but for a sound operator they have to monitor separate monitors which is trickery unless you have more sound operators problem is that costs money to have more staff.


Another way of recording sound for a large group of actors in film and television would be boom mics. These would be visible to the performers but not seen on screen. The benefit of this is that you can record everyone's sound at once - however this is also a negative as isolating / enhancing one contributor's audio when recorded on a boom mic is impossible without affecting everything else you have recorded.


 


Monitor and control: sound operator must monitor the sound being recorded so that the levels are not too low or too high so it doesn't peak. And of course, as discussed above the "quality" of the sound is vital too.
The success of this depends on how carefully the Sound Technicians and crew record the sound on set. The are many ways of doing this but one being the clapper board. The clap of a clapper board is done in front of a camera whilst it is recording but just before a take and before the director shouts "Action!". The board will have the shot details written on it and often a digital time code that also relates to the video / picture being recorded. The editor can then use all this information - visual, audible and technical - to make sure the pictures and sounds are synched perfectly also with the clapper board the sound reverbs on one second compared to other methods. Also in terms of synchronization time code in a clapper board operates in hours, minutes, seconds and frames at (0.24).
Sound mixers- useful multiple channels, effects, utilities compression.





Documentation and storage:


Any production relies on the logging of all shots / takes by a logger / script supervisor. This will ensure a more successful and cost effective editing process later. With data have the date, time of day and small voice e.g. by paper, pen and pencil. Back up to the data in different areas for safety precautions that one is lost it’s good to have an alternate of an issue so back up immediately.


 


Sound Recorder is an app you can use to record audio for up to three hours per recording file. The recordings are stored within the Sound Recorder app this is one way of storage. http://windows.microsoft.com/en-gb/windows-8/sound-recorder-app-faq


Microphones- there are different categories to do with a mic for instance below have the various categories of the microphones; below is a list of microphones;


1. Large Diaphragm Condenser Mics


2. Small Diaphragm Condenser Mics


3. Dynamic “Utility” Mics 


4. Bass Mics


5. Ribbon Mics


6. Multi-Pattern Mics


7. USB Mics


8. Boundary Mics


9. Shotgun Mics


In terms of college equipment we use three microphones one dynamic, second ribbon and thirdly condenser mics.


Dynamic microphones are versatile and ideal for general-purpose use. They use a simple design with few moving parts. They are relatively sturdy and resilient to rough handling. They are also better suited to handling high volume levels, such as from certain musical instruments or amplifiers. They have no internal amplifier and do not require batteries or external power.


Ribbon microphone –is a type of microphone  that uses a thin aluminium of electrically which consists of conductive ribbon placed between the poles of a magnet to produce a voltage by electromagnetic induction. With   Ribbon microphones they are typically bidirectional which means that they can pick up sounds well from either side of the microphone. With ribbon microphones they are the only ones that are not dynamic or condenser. The reason for this is they get their own category as a headphone because they use a thin aluminium ribbon not a diaphragm other microphones use.
Health and safety is used in the area of sound for this they will have to make sure wires aren't in danger of people, safety checks will be put in place, checking wires couldn't cause a hazard like a fire or someone trapped. Risk assessment will help when sorting out sound In pre production to make sure it good to go ahead with the activity in hand with sound.








Below is what microphones receive threw pickup patterns that microphones get;


 Unidirectional Microphones
Unidirectional  pickup patterns are most sensitive to sound because it is produced on the front side of the microphones.


Bidirectional Microphones
Bidirectional or figure 8 pickup patterns are sensitive to signals from front and back and reject left and right.

Omnidirectional Microphones
Omnidirectional pickup patterns are sensitive to sound and this is from all directions.


Switchable Pickup Pattern Microphones
Switchable pickup pattern microphones and they can be switched from one pick up pattern to another for different environments.


                                                   https://microphones.audiolinks.com/microphones.shtml


Advantages of condenser, ribbon and dynamic microphones-


http://smhttp.41820.nexcesscdn.net/8016262/magento/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/a/p/ape-415_1.jpgCondenser microphones are good because they have high output level, excellent frequency response and quite common to have variable polar patterns. The bad thing about condenser microphones is that it is expensive, it requires external power source and not resistant to moisture but some new models are better in this case.


http://magazine.dv247.com/wp-content/uploads/2010/06/ribbon1.jpgRibbon microphones are different they are relatively flat frequency response, needs no external or internal power these are advantages and why people buy these microphones. The downside to ribbon microphones is that they are too are expensive, fragile and liable to lose quality from wind noise so it isn’t great to use this mic outside for meter readings unless there is no wind noise.


http://www.learnchurchsound.com/articles/images/dynamic-microphone.jpgThe third microphone is Dynamic microphones the advantages to this microphone is that it is relatively cheap, strong and durable and resistant to moisture the downside like many microphones have is that it generally has fixed polar patterns, lack of clarity and is reduced of high frequencies.