Clean: factor out a utils module and fix some tests

1 files changed, 10 insertions, 0 deletions

diff --git a/klangfarbrs/src/utils.rs b/klangfarbrs/src/utils.rs
new file mode 100644
index 0000000..9f99e23
--- /dev/null
+++ b/klangfarbrs/src/utils.rs
@@ -0,0 +1,10 @@
+use super::{ Amplitude, Millisecond, SamplesPerSecond };
+
+pub fn slope(start: Amplitude, end: Amplitude, duration: Millisecond) -> f32 {
+    return (end - start) / duration as f32 ;
+}
+
+pub fn ms_to_samples(ms: Millisecond, sample_rate: SamplesPerSecond) -> u32 {
+    let multiplier = sample_rate as u32 / 1000;
+    multiplier * ms
+}