Dynamic Microphone Alex w

Dynamic Microphone

Sound waves cause a movable wire or coil to vibrate in a magnetic field and thus induce a current, to then be converted back to sound. It is used for vocals and amplifiers and all-purpose recordings.

Advantages to a dynamic microphones 

Rugged and able to handle high sound pressure levels, like those delivered by a kick drum

Provide good sound quality in all areas of microphone performance

They do not require a power source to run

They are relatively cheap.

Disadvantages to a dynamic microphone:

Heavy microphone diaphragm and wire coil limits the movement of the assembly, which in turn restricts the frequency and transient response of the microphone

Generally, not as suitable as condenser microphones for recording instruments with higher frequencies and harmonics, such as a violin.

Summary:

Dynamic microphones can be used for many applications, produce an excellent sound and are suitably rugged - great for travelling on the road. They are best avoided when recording high-frequency content on an important recording. For reliable, everyday tasks you will not find a more multifaceted, trustworthy device than a good quality dynamic microphone.

Blog:

We learned about 4 different microphones and what they're used for. The first one I looked at as a dynamic microphone this microphone is very popular for consumers that are in the industry like music, gigs and getting audio for a film/game design. They are also relatively cheap to buy.  

A shotgun microphone is a microphone that is more focused for talking directly into it this effect the audio significantly for the more crisp listing experience. These intern improvers the clarity of the voice.

the lavalier microphone is a small microphone used for television, theatre, and public speaking applications in order to allow for or can move about

A condenser microphone is found in studios they capture a larger frequency range this is a good thing. Also generally have a louder output but are much more sensitive to loud sounds there for you must speak softer.

These are the most important types of microphones to capture audio and create different sounds to give different effects.

In my horror short film, I will use the sound by having sound effects like dramatic music creaking of a door this will give the effect of suspense to uneased. Another folly effect ill add will scary and ire noises like laughs and loud bangs from doors.

Omnidirectional 

The microphone that picks up audio equally from all directions.

Subcardioid

Frequency towards the front but less to the sides.

Cardioid

Picks up sound from the front of the microphone but minimising the sound coming from behind it.

Supercardioid

The supercardioid pattern is slightly less directional than the hypercardioid towards the back. 

Hypercardioid

That the most sensitivity is in the front of the microphone.

bi-directional

Picks up sound equally from both the front and back blocking sound from the side of the mic.
Shotgun
This is a narrow Polar Pattern which is excellent for capturing voice.

What audio will you need to deal with or add in post-production?

In our silent horror film, I will need to add multiple sound effects. These are footsteps, door slammed wind, axe singing, cars and leaves rustling. For the first part of our film I will need footsteps and leaves rustling in the background as my character walks through an alleyway to the next scene. For the second scene I will need the same ambient effects as the first scene, but I will introduce car sounds in the far distance. The third scene is set in a car park where I will need to have a footstep, car sound and a slight echo. For the fourth scene, I will need to add the sound of a door slamming against the wall, and an axe swoosh sound effect.

Do you need to source sound effects?

I will need to source the sound effects for my shoot. As a group we haven’t discussed further information about sourcing our effects. But as group we will need to source music. The way our group will source some of the effects is by using Ben’s sounds, YouTube and sound libraries.

What Foley do you need to record? How will you record it?

In Foley we will create and record footsteps and the swinging of the axe. For the footsteps Remmey will replicate what he did on set by wearing the same shoes and in the studio, there is a concrete slab that he can recreate the sound of walking and running. Another Foley effect my group will replicate is the sound of the axe swooshing through the air. We will create this sound with a thin stick or source the correct prop.

What ambiences/atmospheres do you need?

To create the ambience for our short horror film, we will need to record the sounds of cars and the leaves rustling in the trees.

What do you need in terms of music/score?

For my score I will need to find deep, haunting music to unsettle the audience. I will find this music from a music library or YouTube royalty free.

Creating Foley sound effect.

My group were taken to the studio where we created the sound effect for our silent horror film. We set up the recorder to record the rustling of the main character's coat, along with the footsteps. For the rustling of the coat we used the coat that the character wore in the film. Remmey wore the coat and walked and rubbed his arms against the coat. For the footsteps we used Remmey's shoes by walking on a wooden board. This Foley recording went surprisingly well, because we thought we would have to make multiple recordings to get the correct effect. This was my first attempt at recording Foley sound effects, and I thought that when I went into the studio for the first time it would not be too my standards. As we did not have a lot of time to create the Foley effect, next time I would like to experiment with several different props to create the correct effect. The audio is perfect as it is not too loud and not too quiet. This creates the sound effect that I wanted. In the future, I will definitely use Foley in my future projects. This will help me to create better audio in the future, because I can create unique sounds that would be difficult to create on set, or location. I have learned how to create Foley effects in the studio and record them onto a computer.