Audio Information and Media

1. Audio Information
and Media
By: Mark Jhon C.
Oxillo

2. What is an Audio?
• sound, especially when
recorded, transmitted,
or reproduced

3. AUDIO MEDIA
• media communication
that uses audio or
recordings to deliver and
transfer information
through the means of
sound

4. Types of Audio
Information

5. Types of Audio Information
1. Radio Broadcast - live
or recorded audio sent
through radio waves to
reach a wide audience

6. Types of Audio Information
2. Music - vocal or
instrumental sounds
combined in such a way as
to produce beauty of form,
harmony, and expression of
emotion

7. Types of Audio Information
3. Sound Recording -
recording of an interview,
meeting, or any sound
from the environment

8. Types of Audio Information
4. Sound Clips / Effects -
any sound artificially
reproduced to create an
effect in a dramatic
presentation (ex. sound
of a storm, or a door)

9. Types of Audio Information
5. Audio Podcast - a digital
audio or video file or
recording, usually part of a
themed series, that can be
downloaded from a website
to a media player or a
computer

10. Ways to Store
Audio Information

11. Ways to Store Audio
Information:
1. Tape - magnetic tape
on which sound can be
recorded

12. Ways to Store Audio
Information:
2. CD (Compact Disc) - a
plastic-fabricated, circular
medium for recording,
storing, and playing back
audio, video, and
computer data

13. Ways to Store Audio
Information:
3. USB Drive - an external
flash drive, small enough to
carry on a key ring, that can
be used with any computer
that has a USB Port

14. Ways to Store Audio
Information:
4. Memory Card (aka Flash
Memory Card or Storage Card) - is
a small storage medium used to
store data such as text, pictures,
audio, and video, for use on small,
portable, or remote computing
devices.

15. Ways to Store Audio
Information:
5. Computer Hard Drive -
secondary storage devices for
storing audio file

16. Ways to Store Audio
Information:
6. Internet / Cloud - websites
or file repositories for retrieving
audio files, and more precisely
the files are stored in some
datacenter full of servers that is
connected to the Internet

17. Audio File Formats

18. Audio File Formats
1. MP3 (MPEG Audio Layer 3)
- a common format for
consumer audio, as well as a
standard of digital audio
compression for the transfer
and playback of music on
most digital audio players.

19. Audio File Formats
2. M4A / AAC (MPEG4 Audio /
Advanced Audio Coding) - an
audio coding standard for lossy
digital audio compression. Designed
to be the successor of the MP3
format, AAC generally achieves
better sound quality than MP3 at
similar bit rate

20. Audio File Formats
3. WAV - is a Microsoft audio
file format standard for storing
an audio bitstream on PCs. It
has become a standard file
format for game sounds, among
others

21. Audio File Formats
4. WMA (Windows Media
Audio) - is an audio data
compression technology
developed by Microsoft and
used with Windows Media
Player

22. Units of Sound

23. Decibel
• or simply dB
• noise of sound
measurement

24. Hertz
• or simply Hz
• unit of sound frequency

25. Phon
• unit of subjective
loudness

26. Characteristics and
Purposes of Sound

27. Characteristics of a Sound:
1. Volume – intensity
of a sound

28. Characteristics of a Sound:
2. Tone – the audible
characteristic of a
sound

29. Characteristics of a Sound:
3. Pitch - is how high
or low a sound is

30. Characteristics of a Sound:
4. Loudness - refers
to the magnitude of
the sound heard

31. Purposes of a Sound:
• Give instruction or
information.
• Provide feedback.
• To personalize or
customize

32. Elements of Sound
Design

33. Elements of Sound Design:
1. Dialogue - speech,
conversation, voice-over

34. Elements of Sound Design:
2. Sound Effects – any
sound other than music
or dialogue

35. Elements of Sound Design:
3. Music – vocal or
instrumental sounds (or
both) combined in such a
way as to produce beauty
of form, harmony, and
expression of emotion

36. Principles of Sound
Design

37. Principles of Sound Design:
1. Mixing – the
combination, balance and
control of multiple sound
elements

38. Principles of Sound Design:
2. Pace – time control,
editing, order of events
(linear, non-linear or
multi-linear)

39. Principles of Sound Design:
3. Stereo Imaging – Using
left and right channel for
depth. This refers to the
aspect of sound recording
and reproduction.

40. Principles of Sound Design:
4. Transition – how you
get from one segment or
element to another

41. Types of Transitions

42. Types of Transitions:
1. Segue – one element
stops, the next begins
(“cut” in film)

43. Types of Transitions:
2. Cross-fade – one
element fades out, the
next fades in, and they
overlap on the way

44. Types of Transitions:
3. V-Fade – first element
fades to inaudible before
the second elements
begins

45. Types of Transitions:
4. Waterfall – As first
element fades out, the
second element begins at
full volume. Better for
voice transitions, than for
effects

46. Hearing vs. Listening

47. Hearing
• the act of perceiving
sound by the ear

48. Listening
• requires concentration so
that your brain processes
meaning from words and
sentences. Listening leads
to learning.

49. So are you
listening or
just hearing?

50. END