Optimize pdm_continuous example

2022-08-21 12:40:51 -04:00 · 2022-08-21 12:40:51 -04:00 · 14eae9ca06
commit 14eae9ca06
parent 64154fec8c
1 changed files with 3 additions and 2 deletions
--- a/examples/nrf/src/bin/pdm_continuous.rs
+++ b/examples/nrf/src/bin/pdm_continuous.rs
@ -68,8 +68,9 @@ fn fft_peak_freq(input: &[i16; 1024]) -> (usize, u32) {

    result
        .iter()
-        .map(|c| ((c.norm_sqr()*32768.0) as u32).sqrt())
+        .map(|c| c.norm_sqr())
        .enumerate()
        .max_by(|(_, a), (_, b)| a.partial_cmp(b).unwrap_or(Ordering::Equal))
+        .map(|(i, v)| (i, ((v*32768.0) as u32).sqrt()))
        .unwrap()
 }