| Form
| Strengths
| Limitations
| Cautions
|
| Audio: General Information
|
- Portable
- Non-confronting
- Tailor-made programs
- Controlled by listener
- Can supplement other media
- A versatile teaching medium
- Suitable for private listening
- Stimulates individual imaginatioin
- Overcomes literacy barriers
|
- Requires a player
- Audio only
- Equipment needs maintenance
- Fixed rate of information flow
- Sensitive to environmental conditions
|
- Requires training for quality, production, and equipment maintenance
|
| Audio: Cassettes
|
- Readily available
- Relatively inexpensive
- Simple to produce locally
- Convenient replay
- Can be reused
|
- Can be easily erased
- Older technology
- Sensitive to environmental conditions
- Requires external power
|
- Losing popularity in light of new technology
|
| Audio: Chip Players
|
- Sealed units
- Unlimited length of program
- Solar powered
- Individual listening
- Small and easily distributed
|
- Require sophisticated production equipment
- Cannot be easily reproduced
- Expensive in small quantities
- Cannot be produced locally
- Limited to individual or small group listening
|
|
| Audio: CDs
|
- Popular
- Inexpensive
- Can be locally produced
- Convenient replay
|
- Duplication equipment not readily available
- Production can be costly
- Need careful handling
- Requires external power
|
- Unit price related to quality and quantity produced
|
| Audio: Radio Broadcast General
|
- Popular - Available
- Crosses geographic barriers
- Give credibility to message
- Reaches large audiences
|
- Is audio only, no visuals
- It's one way communication
- It's one time communication
- Listener controls the receiver
- Airtime may need to be purchased and could be expensive
|
- Often government controlled in some countries
|
| Audio: AM Radio Broadcast
|
- Locally transmitted and can cover a large area
- You can have personal contact with audience
|
- Not as popular as FM
- Not many stations now
|
|
| Audio: FM Radio Broadcast
|
- Usually inexpensive when using local stations and in the local idiom
- A small station can cover a large audience
- Local programming can build relationships with listeners
- You can visit the listeners and involve them
- Good quality reception, no noise
|
- Signal restricted to line of sight transmission
|
|
| Audio: SW Radio Broadcast
|
- Transmits over long distances
|
- Not practical for local reception
- More power needed
- Higher cost for program time
|
|
| Audio: Audio For Video
|
- Popular
- Fosters local ownership
- Enhances understanding
- Can be locally produced
|
- Fixed text flow set to scene length
- May not be effective without video
- Requires production equipment
- Requires special training for dubbing
|
- Videos not always culturally appropriate
- Limited variety of religious videos
- Permission to dub
|
