rtbuf/rtbuf

diff --git a/test_synth_delay b/test_synth_delay
index 7a4c391..0e8819f 100644
--- a/test_synth_delay
+++ b/test_synth_delay
@@ -12,11 +12,11 @@ bind ADSR00 signal Synth00 envelope
 bind Osc00 signal Synth00 oscillator
 
 load signal/delay
-let Delay00 = new signal/delay
-bind Synth00 signal Delay00 signal
+let Fx00 = new signal/delay
+bind Synth00 signal Fx00 signal
 
 load portaudio/output
 let Output = new portaudio/output
 bind Synth00 signal Output left
-bind Delay00 signal Output right
+bind Fx00 signal Output right
 start
diff --git a/test_synth_flanger b/test_synth_flanger
index d5762a9..61a445f 100644
--- a/test_synth_flanger
+++ b/test_synth_flanger
@@ -12,11 +12,11 @@ bind ADSR00 signal Synth00 envelope
 bind Osc00 signal Synth00 oscillator
 
 load signal/flanger
-let Flanger00 = new signal/flanger
-bind Synth00 signal Flanger00 signal
+let Fx00 = new signal/flanger
+bind Synth00 signal Fx00 signal
 
 load portaudio/output
 let Output = new portaudio/output
 bind Synth00 signal Output left
-bind Flanger00 signal Output right
+bind Fx00 signal Output right
 start