diff --git a/cnam/travaux/probatoire/images/speech.png b/cnam/travaux/probatoire/images/speech.png
index 9706988..ac64229 100644
Binary files a/cnam/travaux/probatoire/images/speech.png and b/cnam/travaux/probatoire/images/speech.png differ
diff --git a/cnam/travaux/probatoire/présentation/principles.tex b/cnam/travaux/probatoire/présentation/principles.tex
index 21321c9..8af3a94 100644
--- a/cnam/travaux/probatoire/présentation/principles.tex
+++ b/cnam/travaux/probatoire/présentation/principles.tex
@@ -1,6 +1,6 @@
 \section{Principes}
 %⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
-\begin{frame}{\bititle\\Principes}
+\begin{frame}{\bititle\\Principes / Utilisations}
 \begin{columns}\begin{column}{.5\textwidth}
 
 \begin{itemize}
@@ -18,16 +18,16 @@
 
 \end{column}\begin{column}{.5\textwidth}
 
-\only<1>{\imgh{0}{16}{email}}
-\only<2>{\imgh{0}{13}{muffins}}
+\only<1>{\imgh{2}{16}{email}}
+\only<2>{\imgh{3.5}{13}{muffins}}
 \only<3>{\imgh{0}{20}{steganography}}
-\only<4>{\imgh{0}{19}{textures}}
-\only<5>{\imgh{0}{7}{ocr}}
-\only<6>{\imgh{0}{14}{faceid}}
-\only<7>{\imgh{0}{12}{speech}}
-\only<8>{\imgh{0}{14}{protein}}
-\only<9>{\imgh{0}{15}{diagnosis}}
-\only<10>{\imgh{0}{10}{texts}}
+\only<4>{\imgh{0.5}{19}{textures}}
+\only<5>{\imgh{6.5}{7}{ocr}}
+\only<6>{\imgh{3}{14}{faceid}}
+\only<7>{\imgh{4}{12}{speech}}
+\only<8>{\imgh{3}{14}{protein}}
+\only<9>{\imgh{2.5}{15}{diagnosis}}
+\only<10>{\imgh{5.62}{10}{texts}}
 
 \end{column}\end{columns}
 \end{frame}