Task 2 (B) Digital Audio production
This is a written report demonstrating my understanding the different microphone types and characteristic a microphone is an instrument for covering sound waves to electrical energy variations which may then be amplified , transmitted , or recorded , that being said there are different types of microphones such as :
Handheld microphones ; Hand held microphones usually stand for microphones being held in the hand , to preferably pick up human speech , usually when people say microphone people usually picture hand - mic. Another type of microphone would be a boundary microphone :
A boundary microphone is a small on mi directional condenser mic capsule positioned near or flush with boundary (surface) , the microphone gives a half space pick up .
A noise - cancelling microphone is a microphone that is designed to filter ambient noise from the desired sound , which is especially useful in noisy environments .
A parabolic microphone is a microphone that uses parabolic reflector to collect and focus sound waves onto a transducer , in much the same way that a parabolic antenna .
Handheld microphones ; Hand held microphones usually stand for microphones being held in the hand , to preferably pick up human speech , usually when people say microphone people usually picture hand - mic. Another type of microphone would be a boundary microphone :
A boundary microphone is a small on mi directional condenser mic capsule positioned near or flush with boundary (surface) , the microphone gives a half space pick up .
A noise - cancelling microphone is a microphone that is designed to filter ambient noise from the desired sound , which is especially useful in noisy environments .
A parabolic microphone is a microphone that uses parabolic reflector to collect and focus sound waves onto a transducer , in much the same way that a parabolic antenna .
With microphones also comes construction such as dynamics: t he dynamic microphone is also simple in its design and as a result good microphones offer good value for money . The moving coil microphone or as it is more commonly called , the dynamic microphone is one of the most widely used forms of free standing microphones , it is widely used for vocals for musical performances as well as for many other applications , another construction would be Ribbon : Ribbon can be placed between the poles of a magnet to produce a voltage by a electromagnetic induction.
Also with microphones comes characteristics ; Onmi - Directional is where sounds are picked up from all directions equally ,so for example with a normal hand held microphone sounds are being transmitted in all directions whereas with uni directional picks up sound from one particular direction , also bi - directional is where microphones pick up sound well or with high intensity from the front and back but very poorly or with low intensity from side to side.
Design limitations - Proximity effect - The proximity effect in audio is an increase in bass or low frequency response when a sound source is close to a directional or cardioid microphone , there is also the inverse law the inverse square law states that , in a free field the intensity of sound drops by 6 Db for each doubling of distance from the source.
With microphones also comes with different mounts such as a tie - clip ; they are usually used to hold up a ting microphone connected to a person skirt , usually tie clips are made for performers when they tend to dance around the stage etc , also for TV interviews instead of having an handheld microphone . Another mount would be a boom is an extendable arm which a microphone can be mounted on boom mics are used to primarily in films purposes , where the microphones should be positioned close to the audio source without appearing in the frame of the shot.
Two different connectors would be mono jack and stereo jack , mono jack ; simply plugging a mono jack into a stereo you have already hear the sound being produced , it will allow you to hear. Stereo jack is usually used for computers , mono jack is for a microphone used at microphone level.
Also with microphones comes characteristics ; Onmi - Directional is where sounds are picked up from all directions equally ,so for example with a normal hand held microphone sounds are being transmitted in all directions whereas with uni directional picks up sound from one particular direction , also bi - directional is where microphones pick up sound well or with high intensity from the front and back but very poorly or with low intensity from side to side.
Design limitations - Proximity effect - The proximity effect in audio is an increase in bass or low frequency response when a sound source is close to a directional or cardioid microphone , there is also the inverse law the inverse square law states that , in a free field the intensity of sound drops by 6 Db for each doubling of distance from the source.
With microphones also comes with different mounts such as a tie - clip ; they are usually used to hold up a ting microphone connected to a person skirt , usually tie clips are made for performers when they tend to dance around the stage etc , also for TV interviews instead of having an handheld microphone . Another mount would be a boom is an extendable arm which a microphone can be mounted on boom mics are used to primarily in films purposes , where the microphones should be positioned close to the audio source without appearing in the frame of the shot.
Two different connectors would be mono jack and stereo jack , mono jack ; simply plugging a mono jack into a stereo you have already hear the sound being produced , it will allow you to hear. Stereo jack is usually used for computers , mono jack is for a microphone used at microphone level.
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