Reduction in channel bandwidth calculations

Discussion in 'Homework Help' started by c1rcu1ts, Oct 5, 2016.

  1. c1rcu1ts

    Thread Starter Member

    Oct 19, 2013
    62
    0
    Hello all,

    I am tasked with finding the reduction in channel bandwidth requirement for iLBC 20ms and 30ms blocks.

    I have calculated this to be 12Hz (find the frequency for both blocks and subtract), however i am unsure if this is the solution.

    Are they asking me for a reduction in channel bandwidth from input to output?

    Can someone point me in a direction or give me an idea of how to solve this?

    iLBC specifications can be found: https://en.wikipedia.org/wiki/Internet_Low_Bitrate_Codec

    Thanks.
     
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