envelope detector query

Status
Not open for further replies.

rsrinivas

Advanced Member level 1
Joined
Oct 10, 2006
Messages
411
Helped
50
Reputation
100
Reaction score
11
Trophy points
1,298
Location
bengalooru
Activity points
3,689
Hi

I have a wave file(44100 Fs) and i am feeding it to a BPF(say 1000 Fc,44100 Fs)
I get some output out of BPF which are energy samples.
Now i need to plot the envelope of these samples.
i am using sign magnitude form
inputs::: 16 bit inputs with 15 bits fractional
i.e. Q(16,15) range -1 to 1
outputs:::16 bit outputs with 11 bits fractional
i.e. Q(16,11) range -16 to 16
is it sufficient tat i check the MSB of the data and decide whether it's positive or
negative sample or something extra has to be done.
later i can pass it through an LPF to get the envelope right???

thanks in advance 4 ur valuable suggestions
 

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…