Make sure it supports both the USB port and drive itself.
(If it doesn't, the transfers will happen at the lower port speed.
USB 3.0 transmits data at 100 MB/s while USB 2.0 transmits at 15 MB/s.
Flash memory and controller
Use drives that are like solid-state drives (SSD):
-good at transferring and storing data
-transmit >200 MB/s.
Check if your Android phone supports USB OTG (On-The-Go),
It will be able to read external flash drives.
Rugged drive protects from physical damage.
Data and password-protection.
USB drives with physical keypads for entering a password.
Avoid system latency delays by using a fast computer with the large memory.
Fastest broadband internet connection (speed affects quality).
Dial-up connections for presenters need a minimum download speed of 2MBps and upload speed of 1Mbps.
USB microphone that plugs into your computer’s USB port.
Wireless Presenter Device
- easy to use
- timers and stopwatch
- low battery indicator
- consider range requirement
- good grip and design for holding
- bright. sharp and focused laser for range needed
- check compatibility with Apple and Windows.
The external mic
- directionality; omnidirectional, cardioid,
hyper cardioid, bidirectional and variable
- flat response (equally sensitive to all frequencies)
- impedance: low Impedance (less than 600Ω)
- frequency response range of around 80 Hz to
- align your mouth approximately two hand widths
from the microphone
- keep your hands behind the microphone if walking
around the stage
- place the mic behind the main speakers and in
front of the main monitors
- do not point the mic at the monitors.
The wired and wireless
A peak of a few decibels at 10–15 kHz. is sufficient.
Position the microphone about six inches below your chin.
Ensure that the microphone has a clear path to the mouth.
Equilise voice sounds with a microphone:
-1KHz to 5KHz range (improves intelligibility and clarity
-3KHz to 6KHz range to add brightness (improves intonations for second language speakers).
Improving your sound
-Enhance audience understanding with joy and indignation pitches at beginning and end of a sentence.
Use intonations with:
-fall patterns in statements and commands
-rise patterns in open questions and closed questions.
Stress fewer words in sentences to promote fluency and clarity.
For an international audience speak at a maximum of 100 words per minute.
Speak louder to enhance formality, interest and happiness.
Use a softer voice to sound apologetic, relaxed or saddened.
Think truthful and positive thoughts prior to presenting.
Remember, truthful thoughts reduce fear and anxiety.