Clear-Com VOICE2 - Manual (Page 53)

Vitec Group Communications
VoICE IP Interface User Manual 3 - 1 3
• Frequency Response: This range indicates the frequency
response of the codec. All the frequencies in this range are
linearly transported end-to-end. Frequencies outside this range
are filtered out.
HOW TO CHOOSE A CODEC
Three factors are important when you are trying to determine which
CODEC is better for you; bandwidth, delay and audio quality. The more
quality you want, the more bandwidth you will use. High quality codecs
also introduce more delay. The sampling rate is also an important
factor because a higher sampling rate can give you a better audio
quality but it will take more bandwidth. If you chose a high sampling
rate with a low bandwidth, the resulting audio quality will suffer.
Therefore, to choose your codec, you need first to determine how
much bandwidth you want to or are allowed to use. Then based on that