initial importHEADmaster

currently everything is very tied to alsa and my system,
for the moment you'll need to manually change the device names
and maybe channels/period_size in src/main.rs, src/bin/smolguitar.rs
and src/bin/loopbacker.rs, i'll fix that and add runtime period
size/updater allocation soon, (and probably make a cpal backend as well
so it can work on other platforms), but doing this initial commit to play
around with stereo for now~

1 files changed, 20 insertions, 0 deletions

diff --git a/src/bin/testrfft.rs b/src/bin/testrfft.rs
new file mode 100644
index 0000000..ee8c72f
--- /dev/null
+++ b/src/bin/testrfft.rs
@@ -0,0 +1,20 @@
+use realfft::{RealFftPlanner, FftNum, RealToComplex};
+
+fn main() {
+    let mut planner: RealFftPlanner<f32> = RealFftPlanner::new();
+    //let rfft = planner.plan_fft_forward(4);
+    let rfft = planner.plan_fft_forward(40);
+    let mut scratch = rfft.make_scratch_vec();
+    let mut out_data = rfft.make_output_vec();
+    //let mut in_data = [1., 0.4, 0.3, -1.];
+    let mut in_data = [1.; 40];
+    //let mut in_data = [
+    rfft.process_with_scratch(&mut in_data, &mut out_data, &mut scratch).unwrap();
+    println!("{:?}", &out_data);
+    let scale = 1./40.;
+    for elem in out_data {
+        println!("{}", elem.norm_sqr().sqrt() * scale);
+        println!("{}", elem.l1_norm() * scale);
+        //println!("{}", elem * scale);
+    }
+}