AAC | ADPCM | Convolution | DAFx | FFT | IIR | Mixer | MP3 | MPEG | MPEG-4

Hi all,
I am working on an Noise Adaptive Playback project to eliminate the noise from a microphone of
the USB HeadSet.
My project is working ok with floating point number, now i am converting it to fixed point
number to run
on an ARM7 processor.
Most of calculation in my source code is from -1 to 1,  but there are some value very big , the
biggest value is 
around 23000. I don't know which fixed point format should i use to cover the range of all
value in my source code.
Any body can help me on this.

Thanks in advanced !
Tung
------------------------------------

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 Based on your actual project, you  can choose some scale to convert float =
to fix.For example , when the value is between -1 and 1 ,you choose Q15,but=
 around 23000's value, you use 32bit format with Q15.
=20
=20
=20

=D4=DA2008-08-21 18:05:38=A3=A...@yahoo.com =D0=B4=B5=C0=A3=BA
Hi all,
I am working on an Noise Adaptive Playback project to eliminate the noise f=
rom a microphone of the USB HeadSet.
My project is working ok with floating point number, now i am converting it=
 to fixed point number to run
on an ARM7 processor.
Most of calculation in my source code is from -1 to 1, but there are some v=
alue very big , the biggest value is=20
around 23000. I don't know which fixed point format should i use to cover t=
he range of all value in my source code.
Any body can help me on this.

Thanks in advanced !
Tung

------------------------------------

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