What OS? The problem might be the RT output that is not working well in 8 bits. Try to make
the output always 16 bits, as it should not depend on the input.
Victor
----- Original Message -----
From: Ben Zonneveld <whi...@gm...>
Date: Monday, February 14, 2011 11:25 pm
Subject: [Sndobj-devel] PVA / PVS and 8 bit audiofiles
To: snd...@li...
> When trying to do some PVA / PVS stuff on a 8 bit mono audio file the only ouput i get is lots of distortion.
> The program I am working on can't use 16 bit samples because the program is for editing sounds from an 8 bit midi sampler.
>
> At this moment I'm a bit stuck.
>
> I'm testing with the blurring example:
> #include <SndObj/AudioDefs.h>
> #include <stdio.h>
>
> int
> main(){
> int vecsize=DEF_VECSIZE;
> int fftsize=1024;
>
> int encoding=BYTESAM;
> SndWave input("C:/Ableton Songs/Blunt Rips/Fairlight/GrandA4.wav", READ,1,8,0,0,DEF_VECSIZE); // 8 bit mono sample
> // SndWave input("C:/Ableton Songs/Library/Legs 1.wav", READ,1,8,0,0,DEF_VECSIZE); // 16 bit stereo sample
> float sr=input.GetSr();
>
> if ( input.GetSize() == 8 )
> {
> encoding = BYTESAM;
> } else {
> encoding = SHORTSAM;
> }
>
> SndRTIO output(2, SND_OUTPUT,DEF_BSIZE,DEF_PERIOD,encoding,0,vecsize,sr);
>
> HammingTable window(fftsize, 0.54f);
>
> SndIn in(&input,1,vecsize,sr);
> PVA anal(&window, &in,1.0f,fftsize,vecsize,sr);
> // PVBlur blur(&anal, 0.05f,vecsize,fftsize,sr);
> PVS synth(&window, &anal,fftsize,vecsize,sr);
>
> output.SetOutput(1, &synth);
> output.SetOutput(2, &synth);
>
>
> while(!input.Eof()){
>
> input.Read();
> in.DoProcess();
> anal.DoProcess();
> // blur.DoProcess();
> synth.DoProcess();
> output.Write();
> }
>
> return 0;
>
> }
> -----------------------------------------------------------------
> -------------
> The ultimate all-in-one performance toolkit: Intel(R) Parallel
> Studio XE:
> Pinpoint memory and threading errors before they happen.
> Find and fix more than 250 security defects in the development cycle.
> Locate bottlenecks in serial and parallel code that limit performance.
> http://p.sf.net/sfu/intel-dev2devfeb> _______________________________________________
> Sndobj-devel mailing list
> Snd...@li...
> https://lists.sourceforge.net/lists/listinfo/sndobj-devel
Dr Victor Lazzarini, Senior Lecturer, Dept. of Music,
National University of Ireland, Maynooth
|
