EDUCATIONAL TECHNOLOGY 1 CHAPTER 9 "AUDIO MEDIA"

1. CHAPTER 9
AUDIO MEDIA
Prepared by:
Exchaure, Mayella
Ragmac, Hannah Mae P.

2. ListeningHearing Technique
s
Audio Formats
Accessing Audio Creating Audio AAC HP

3. Hearing – ability to
perceive sound by
detecting vibrations
through an organ such
as the ear. Vibrations
are detected by the ear
and then converted into
nerve pulses and sent
to the brain.
Hearing – ability to
perceive sound by
detecting vibrations
through an organ such
as the ear. Vibrations
are detected by the ear
and then converted into
nerve pulses and sent
to the brain.

4. Listening is known
also as active
listening, where after
the brain receive the
nerve impulses, it
interprets it, then it
then sends feedback.

5. 6. Distinguishing between relevant and
irrelevant information
Techniques on how to
develop listening
skills:1. Directed Listening
2. Following
directions
3. Listening for main ideas
4. Using context in listening
5. Analyzing the structure of a presentation

6. AUDIO FORMATS
- is a file for storing sounds or music.
It can be digital or analog.

7. - Digital files are
kept on a
digital storage
such as a CD,
computer hard
drive, a flash
drive or a
digital recorder. It
referred to as “binary
system.”
Digital Audio
1.1
1.2
Audio File Types
Digital Storage Devices

8. wav (wave) – used mainly in Windows
PCs and considered as “first
generation” format.
mp3 (The MPEG Layer-3) – used for
compressing audio file
into a
very small file.
wma (Windows Media Audio) – used
also for compressing audio files.
A
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9. Digital
Storage
Devices
Optical Disc - a
storage medium from
which data is read
and to which it is
written by lasers.
T1
T2
T3ROM
WORM
WMRM

10. Read Only Memory (ROM) disc
– used for distribution of
standard
program and data files. It comes with
data already encoded onto them but
cannot be modified.
Type 1

11. Write-once read-many (WORM) disc
– the information stored on the
disk cannot be changed or erased.
Type 2

12. Re-writable, write-many read-many
(WMRM) disc – allow information to be
recorded and erased many times.
Type 3

13. Analog
Audio
– it is a representation of a
sound that is analogous to
the air pressure waves of
the sound.
 Analog Devices – read
the media by scanning the
physical data off the
media examples are audio
tape players, VCRs and
record players.

14. Guidelines on how to use
microphone:
1.
•1. Place the microphone on a floor or table
stand away from hard surfaces.
2.
•2. Place the microphone in a good spot.
3.
•3. Maintain a constant distance from the
microphone.
4.
•4. Speak over the top of the microphone,
not directly into it.

15. Accessing Audio
 Accessing audio files can be
done in a variety of ways
such as through streaming
audio, podcasting, internet
radio, and digital players.
Accessing Audio
Accessing audio files can be done in a variety
of ways such as through:
Streaming
Audio
Internet or
Wi-fi radio
Podcasting Digital Players

16. - It is a method of delivering
audio signal to the computer
using the internet.
- It lets you hear the sound as it
arrives to your computer. And as
the data arrives, it is buffered
for a few seconds and then
playback.
Streaming Audio

17. Popular and well-known websites
that offer audio streaming:
Spotify (www.spotify.com)
Pandora (www.pandora.com)
Last.fm (www.last.fm)
Rhapsody (www.rhapsody.com)
Grooveshark (www.grooveshark.com)

18. it refers to
recorded audio
files in MP3 format
that are distributed
over the internet.
it needs to be
completely
downloaded
before you can
listen to them.
Podcasting

19. TED talks
The Ultimate
Podcasts Collection
Podcasts.com
LearnOutLoud.com
This Week in
Technology
Websites
that
provides
podcasts:

20. Digital
Players
- a portable
electronic
gadgets used to
store and play
digital media
such as audio.

21. Internet Radio
or Wi-fi radio
– can access to thousands
of internet radio stations.
Offers variety of programs
that includes local and
international news, music,
science and sports.

22. Creating Audio
- via audio recording
technologies.

23. How to record sound?
Microphone
Start
All
programs
Start
recording
Sound
recorder
accessories
Stop
recording
File name
Save (audio
file)
PLAY