Sonic Design
Chalani Tharanga Wanigasekara (0329562)
Sonic Design
All lectures
Lecture 1
The lecturer gave a brief introduction of module outline and sound and adobe audition software.
Sound- means vibrations that travel through the air molecules that stimulate our eardrums.
Human ear- Sound waves travel into the ear canal until they reach the eardrum. The eardrum passes the vibrations through the middle ear bones or ossicles into the inner ear. The inner ear is shaped like a snail and is also called the cochlea. Inside the cochlea, there are thousands of tiny hair cells. Hair cells change the vibrations into electrical signals that are sent to the brain through the hearing nerve. The brain tells you that you are hearing a sound and what that sound is.
Psychoacoustics- this is the study of the subjective human perception of sounds.
Wavelength- the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
Amplitude- the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
Frequency- In physics, the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz (Hz), corresponding to one crest per second. The frequency of a wave can be calculated by dividing the speed of the wave by the wavelength.
Properties of sounds
Pitch- the frequency sense is commonly referred to as the pitch of a sound. A high pitch sound corresponds to a high-frequency sound wave and low pitch sound corresponds to a low-frequency sound wave.
vibration per second= frequency hertz
Loudness- Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB). As decibel levels get higher, sound waves have greater intensity and sounds are louder.
Timbre- Describes those characteristics of sound which allow the ear to differentiate the sounds which have the same pitch and loudness.
Duration- It is perceived as how “long” or short” a sound is and relates to onset and offset signals created by nerve responses to sounds.
Lecture 2
These things need to use to make sounds.
Layering- this is taking two or more sounds and placed on top of each other and make a powerful or interesting sound.
Time stretching- it is the process of changing the speed or duration of an audio signal without affecting its pitch.
Pitch shifting- the process of changing the pitch without affecting the speed.
Reversing
Mouth it!
Useful features in adobe audition
Parametric equalizer- it allows specific part of the frequency range of a signal to be selected and altered in strength.
Filter and EQ> Parametric Equalizer
Hard limiter-
Copy the sound- select the whole sound> right click> copy to new
Reverse the sound- Effect> reverse
For timing the frames- Effect> time and pitch> stretch and pitch
Noise reduction- firstly select the part that you want to use noise reduction and capturing it (hold shift+P) after that press ctrl+shift+P to open the noise reduction finally, click ‘apply’.
To record - hold shift+ space
To add a new stereo audio track layer- Alt+ A or Multitrack> track> add stereo audio track
Chorus- it is a modulation effect used to create a richer, thicker sound and add subtle movement.
Effects> Modulation> chorus
Flangers- it is produced by 2 signals
Lecture 3
The lecturer gave a lecture of Microphones.
Transducer- it converts variations in sound pressure into an electrical signal. The most common transducer types are Dynamic and condenser.
Dynamic microphone-it is moving coil magnetic diaphragm to produce the audio signal and can handle high Sound Pressure Levels (SPL). In fact, it won’t damage if drop the mic. It is using for live shows, karaoke.
SHURE SM58 is the commonly used and preferred dynamic microphone.
Condenser microphone- this is so sensitive and capturing small noise also. It is using a conductive diaphragm which vibrates with sound pressure and uses capacitance to create the audio signal, it is very susceptible to distorting at higher levels. Condenser microphones using a lot in studios.
Cross section of condenser microphones
Cross section of dynamic microphones
Mic patterns
Omnidirectional Cardioid
Figure of eight Hypercardioid
Connectors
stereo
If have two black rings in the connector, it means it is a stereo.
Sonic Design
All lectures
Lecture 1
The lecturer gave a brief introduction of module outline and sound and adobe audition software.
Sound- means vibrations that travel through the air molecules that stimulate our eardrums.
Human ear- Sound waves travel into the ear canal until they reach the eardrum. The eardrum passes the vibrations through the middle ear bones or ossicles into the inner ear. The inner ear is shaped like a snail and is also called the cochlea. Inside the cochlea, there are thousands of tiny hair cells. Hair cells change the vibrations into electrical signals that are sent to the brain through the hearing nerve. The brain tells you that you are hearing a sound and what that sound is.
Psychoacoustics- this is the study of the subjective human perception of sounds.
Wavelength- the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
Amplitude- the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
Frequency- In physics, the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz (Hz), corresponding to one crest per second. The frequency of a wave can be calculated by dividing the speed of the wave by the wavelength.
Pitch- the frequency sense is commonly referred to as the pitch of a sound. A high pitch sound corresponds to a high-frequency sound wave and low pitch sound corresponds to a low-frequency sound wave.
vibration per second= frequency hertz
Loudness- Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB). As decibel levels get higher, sound waves have greater intensity and sounds are louder.
Timbre- Describes those characteristics of sound which allow the ear to differentiate the sounds which have the same pitch and loudness.
Duration- It is perceived as how “long” or short” a sound is and relates to onset and offset signals created by nerve responses to sounds.
Lecture 2
These things need to use to make sounds.
Layering- this is taking two or more sounds and placed on top of each other and make a powerful or interesting sound.
Time stretching- it is the process of changing the speed or duration of an audio signal without affecting its pitch.
Pitch shifting- the process of changing the pitch without affecting the speed.
Reversing
Mouth it!
Useful features in adobe audition
Parametric equalizer- it allows specific part of the frequency range of a signal to be selected and altered in strength.
Filter and EQ> Parametric Equalizer
Hard limiter-
Copy the sound- select the whole sound> right click> copy to new
Reverse the sound- Effect> reverse
For timing the frames- Effect> time and pitch> stretch and pitch
Noise reduction- firstly select the part that you want to use noise reduction and capturing it (hold shift+P) after that press ctrl+shift+P to open the noise reduction finally, click ‘apply’.
To record - hold shift+ space
To add a new stereo audio track layer- Alt+ A or Multitrack> track> add stereo audio track
Chorus- it is a modulation effect used to create a richer, thicker sound and add subtle movement.
Effects> Modulation> chorus
Flangers- it is produced by 2 signals
The lecturer gave a lecture of Microphones.
Transducer- it converts variations in sound pressure into an electrical signal. The most common transducer types are Dynamic and condenser.
Dynamic microphone-it is moving coil magnetic diaphragm to produce the audio signal and can handle high Sound Pressure Levels (SPL). In fact, it won’t damage if drop the mic. It is using for live shows, karaoke.
SHURE SM58 is the commonly used and preferred dynamic microphone.
Condenser microphone- this is so sensitive and capturing small noise also. It is using a conductive diaphragm which vibrates with sound pressure and uses capacitance to create the audio signal, it is very susceptible to distorting at higher levels. Condenser microphones using a lot in studios.
Cross section of condenser microphones
Cross section of dynamic microphones
Mic patterns
Omnidirectional Cardioid
Figure of eight Hypercardioid
Connectors
stereo
If have two black rings in the connector, it means it is a stereo.
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