X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=helpers%2F__init__.py;h=2339b9ba7852318d043abf45373a3a38f089089c;hb=1b4b78f5b6df7182ac066fcc26a7b4f0e8586a47;hp=3b97f2fb435d5837c803895e479184b9c16b694d;hpb=71715c049145a074b0f2b8d90c8c8c47830323c3;p=perso%2FImmae%2FProjets%2FPython%2FMusicSampler.git

diff --git a/helpers/__init__.py b/helpers/__init__.py
index 3b97f2f..2339b9b 100644
--- a/helpers/__init__.py
+++ b/helpers/__init__.py
@@ -2,6 +2,7 @@
 import argparse
 import sys
 import os
+import math
 
 class Config:
     def __init__(self, **kwargs):
@@ -60,3 +61,10 @@ def duration_to_min_sec(duration):
         return "{:2}:{:0>2}".format(minutes, seconds)
     else:
         return "{}:{:0>2}".format(minutes, seconds)
+
+def gain(volume, old_volume = None):
+    if old_volume is None:
+        return 20 * math.log10(volume / 100)
+    else:
+        return [20 * math.log10(max(volume, 0.1) / max(old_volume, 0.1)), max(volume, 0)]
+