From: WANG <wang@wang-OptiPlex-780.(none)>
Date: Thu, 29 Aug 2013 16:19:18 +0000 (+0200)
Subject: Add fft, 2d_fft and sinwave to examples.
X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/commitdiff_plain/cc8ed2bd6bd5a60156d63040b2d352ad5b1a3095

Add fft, 2d_fft and sinwave to examples.
---

diff --git a/examples/2d_fft/fft2d.dsp b/examples/2d_fft/fft2d.dsp
new file mode 100644
index 0000000..c77a660
--- /dev/null
+++ b/examples/2d_fft/fft2d.dsp
@@ -0,0 +1,51 @@
+import ( "../../architecture/fft.lib" ) ;
+import ( "../../architecture/complex.lib" ) ;
+
+GREY_MAX = 256;
+
+//fft2d(x,y) = vectorize(x) : vectorize(y) <: picks(n) : real2complex(n) : fft(n) : stops(n/2), pcplx_moduls(n/2) : modules_vector(n/2);
+//fft2d(x,y) = vectorize(x) : vectorize(y) : fft(x) : fftc(y) : pcplx_moduls(y) : modules_vector(y);
+//fft2d(x,y) = vectorize(x) : fft(x) : fftc(y) : pcplx_moduls(y) : modules_vector(y);
+ 
+matricize(x, y) = vectorize(y) : vectorize(x);
+
+ffts(n, m) = par(i, n, (fft(m) : nconcat(m)));
+
+fftcs(n, m) = par(i, n, (fftc(m) : nconcat(m)));
+
+lines_fft(n, m) = _ <: picks(n) : ffts(n, m) : nconcat(n);
+
+lines_fftc(n, m) = _ <: picks(n) : fftcs(n, m) : nconcat(n);
+
+take_column(n, m) = par(i, n, [m]) : nconcat(n);
+
+matrix_transpose(n, m) = _ <: picks(n) <: par(i, m, take_column(n, i)) : nconcat(m);
+
+matrix_pcplx2modul(n, m) = _ <: picks(n) : par(i, n, ( _ <: picks(m) : pcplx_moduls(m) : nconcat(m))) : nconcat(n);
+
+matrix_real2pcplx(n, m) = _ <: picks(n) : par(i, n, ( _ <: picks(m) : real2pcplx(m) : nconcat(m))) : nconcat(n);
+
+//normalize(n) = _ , n : /;
+normalize(n, m) = _, (m : vectorize(n)) : /;
+
+unnormalize(n) = par(i, n, ( _ , GREY_MAX : *));
+
+norm_out(n, m) = _ <: picks(n) : par(i, n, ( _ <: picks(m) : unnormalize(m) : nconcat(m))) : nconcat(n) : serialize;
+
+output(n, m) = serialize;
+
+//fft2d(x, y) = matricize(x, y) : lines_fft(x, y) : matrix_transpose(x, y) : lines_fftc(y, x) : matrix_transpose(y, x)  : output(x, y);
+//fft2d(x, y) = normalize(GREY_MAX) : matricize(x, y) : lines_fft(x, y) : matrix_transpose(x, y) : lines_fftc(y, x) : matrix_transpose(y, x) : norm_out(x, y);
+//fft2d(x, y) = matricize(x, y) : matrix_real2pcplx(x, y) : matrix_pcplx2modul(x, y) : output(x, y);
+//fft2d(x, y) = matricize(x, y) : output(x, y);
+fft2d(x, y) = normalize(GREY_MAX) : matricize(x, y) : lines_fft(x, y) : matrix_transpose(x, y) : lines_fftc(y, x) : matrix_transpose(y, x) : norm_out(x, y);
+
+new_fft2d(x, y) = normalize(y, GREY_MAX) : vectorize(x) : lines_fft(x, y) : matrix_transpose(x, y) : lines_fftc(y, x) : matrix_transpose(y, x) : norm_out(x, y);
+
+//safer with x=y because tests and zero padding are still to implement
+//process = fft2d(32,32);
+
+process = new_fft2d(32,32);
+
+
+
diff --git a/examples/2d_fft/fft2d.sh b/examples/2d_fft/fft2d.sh
new file mode 100644
index 0000000..b77b205
--- /dev/null
+++ b/examples/2d_fft/fft2d.sh
@@ -0,0 +1,2 @@
+../../interpretor/faustine -d fft2d.dsp -i hcosine-32.csv --oformat csv
+
diff --git a/examples/2d_fft/hcosine-32.csv b/examples/2d_fft/hcosine-32.csv
new file mode 100644
index 0000000..14d3ba6
--- /dev/null
+++ b/examples/2d_fft/hcosine-32.csv
@@ -0,0 +1,32 @@
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+217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217
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+217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217
+217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217
+217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217
+217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217,217,38,38,217
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diff --git a/examples/2d_fft/output1.csv b/examples/2d_fft/output1.csv
new file mode 100644
index 0000000..9112295
--- /dev/null
+++ b/examples/2d_fft/output1.csv
@@ -0,0 +1,32 @@
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\ No newline at end of file
diff --git a/examples/fft/fft.dsp b/examples/fft/fft.dsp
new file mode 100644
index 0000000..41ad1fe
--- /dev/null
+++ b/examples/fft/fft.dsp
@@ -0,0 +1,18 @@
+import ( "../../architecture/fft.lib" ) ;
+import ( "../../architecture/complex.lib" ) ;
+
+
+
+//fft_test(n,m) = _ : overlap(n,m) <: picks(n) : real2complex(n) : fft(n) : stops(n/2), pcplx_moduls(n/2) : modules_vector(n/2);
+//fft_test(n,m) = _ : overlap(n,m) : fft(n) : stops(n/2), pcplx_moduls(n/2) : nconcat(n/2);
+fft_test(n,m) = vectorize(n) : fft(n) : pcplx_moduls(n) : nconcat(n);
+
+//process = +, _ : + : fft_test(128,128);
+process = fft_test(128,128) : serialize;
+//process = (0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7) <: shuffle(8);
+
+
+
+
+
+
diff --git a/examples/fft/fft.sh b/examples/fft/fft.sh
new file mode 100644
index 0000000..03de52b
--- /dev/null
+++ b/examples/fft/fft.sh
@@ -0,0 +1 @@
+../../interpretor/faustine -d fft.dsp -i sin_22000Hz_0.005_ampli_128samples.wav
diff --git a/examples/fft/sin_1378Hz_0.005_ampli_128samples.wav b/examples/fft/sin_1378Hz_0.005_ampli_128samples.wav
new file mode 100644
index 0000000..7d4c896
Binary files /dev/null and b/examples/fft/sin_1378Hz_0.005_ampli_128samples.wav differ
diff --git a/examples/fft/sin_16536Hz_0.005_ampli_128samples.wav b/examples/fft/sin_16536Hz_0.005_ampli_128samples.wav
new file mode 100644
index 0000000..e48ffb6
Binary files /dev/null and b/examples/fft/sin_16536Hz_0.005_ampli_128samples.wav differ
diff --git a/examples/fft/sin_2067Hz_0.005_ampli_128samples.wav b/examples/fft/sin_2067Hz_0.005_ampli_128samples.wav
new file mode 100644
index 0000000..a8524b7
Binary files /dev/null and b/examples/fft/sin_2067Hz_0.005_ampli_128samples.wav differ
diff --git a/examples/fft/sin_22000Hz_0.005_ampli_128samples.wav b/examples/fft/sin_22000Hz_0.005_ampli_128samples.wav
new file mode 100644
index 0000000..93556f1
Binary files /dev/null and b/examples/fft/sin_22000Hz_0.005_ampli_128samples.wav differ
diff --git a/examples/sinwave/output1.wav b/examples/sinwave/output1.wav
new file mode 100644
index 0000000..5a728e2
Binary files /dev/null and b/examples/sinwave/output1.wav differ
diff --git a/examples/sinwave/sin.dsp b/examples/sinwave/sin.dsp
new file mode 100644
index 0000000..b1650f2
--- /dev/null
+++ b/examples/sinwave/sin.dsp
@@ -0,0 +1,19 @@
+//sin = ffunction(float sin(float), <math.h>, "");
+//floor = ffunction(float floor(float), <math.h>, "");
+PI = 3.141592653589;
+
+tablesize = 40000;
+samplingfreq = 44100.;
+
+time = (+(1)~_) - 1;
+sinwavform = time * (2 * PI)/tablesize : sin;
+
+decimal = _ <: -(floor);
+phase(freq) = freq / samplingfreq : mem : ( + : decimal) ~ _ : * (tablesize) : int;
+osc(freq) = phase(freq) : rdtable(tablesize, sinwavform);
+
+vol = 1;
+freq = 1000;
+
+process = osc(freq) * vol;
+//process = freq / samplingfreq : @(1): ( + : decimal) ~ _ : * (tablesize) : int ;
diff --git a/examples/sinwave/sin.sh b/examples/sinwave/sin.sh
new file mode 100644
index 0000000..3a4b202
--- /dev/null
+++ b/examples/sinwave/sin.sh
@@ -0,0 +1 @@
+../../interpretor/faustine -d sin.dsp