exchaure, m. ragmac, h. (chapter 9)
TRANSCRIPT
CHAPTER 9 AUDIO MEDIA
Prepared by:Exchaure, MayellaRagmac, Hannah Mae P.
Listening
Hearing
Techniques
Audio Formats
Accessing Audio
Creating Audio
AAC HP
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.
Listening is known also as active listening, where after the brain receive the nerve impulses, it interprets it, then it then sends feedback.
6. Distinguishing between relevant and irrelevant information
Techniques on how to develop listening skills:1. Directed
Listening2. Following directions3. Listening for main ideas
4. Using context in listening5. Analyzing the structure of a presentation
AUDIO FORMATS- is a file for storing sounds or
music.It can be digital or analog.
- Digital files arekept on adigital storagesuch as a CD, computer harddrive, a flashdrive or adigital recorder. It referred to as “binary system.”
Digital Audio
1.1
1.2
Audio File Types
Digital Storage Devices
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.
AUDIO
FILE
TYPE
DigitalStorageDevices
Optical Disc - a storage medium from which data is read and to which it is written by lasers.
T1
T2T3ROM
WORMWMRM
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
Write-once read-many (WORM) disc
– the information stored on the disk cannot be changed or erased.
Type 2
Re-writable, write-many read-many (WMRM) disc – allow information to be recorded and erased many times.
Type 3
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.
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.
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 orWi-fi radio
Podcasting Digital Players
- 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
Popular and well-known websitesthat offer audio streaming:
Spotify (www.spotify.com)Pandora (www.pandora.com)Last.fm (www.last.fm)Rhapsody (www.rhapsody.com)Grooveshark (
www.grooveshark.com)
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
TED talksThe Ultimate
Podcasts Collection
Podcasts.comLearnOutLoud.c
omThis Week in
Technology
Websitesthatprovides podcasts:
DigitalPlayers
- a portable electronic gadgets used to store and play digital media such as audio.
Internet Radio or Wi-fi radio
– can access to thousandsof internet radio stations. Offers variety of programs that includes local and international news, music, science and sports.
Creating Audio
- via audio recording technologies.
How to record sound?
Microphone
Start
All programs
Start recording
Sound recorder
accessories Stop recording
File name
Save (audio file)
PLAY
