diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 919613b..a401995 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,7 +1,5 @@
-add_executable(test_env test_env.asm test_renderer.c test_env_expected.raw)
-add_custom_command(
-        TARGET test_env POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy
-                ${CMAKE_SOURCE_DIR}/tests/test_env_expected.raw
-                ${CMAKE_CURRENT_BINARY_DIR}/test_env_expected.raw)
-add_test(test_env test_env)
\ No newline at end of file
+add_executable(test_envelope test_envelope.asm test_renderer.c)
+add_test(test_envelope test_envelope)
+
+file(GLOB RAW_FILES "${CMAKE_SOURCE_DIR}/tests/*.raw")
+file(COPY ${RAW_FILES} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
\ No newline at end of file
diff --git a/tests/test_env_expected.raw b/tests/test_env_expected.raw
deleted file mode 100644
index 105929a..0000000
Binary files a/tests/test_env_expected.raw and /dev/null differ
diff --git a/tests/test_env.asm b/tests/test_envelope.asm
similarity index 99%
rename from tests/test_env.asm
rename to tests/test_envelope.asm
index 71ab3ba..9f6d794 100644
--- a/tests/test_env.asm
+++ b/tests/test_envelope.asm
@@ -597,7 +597,7 @@ section .data
 go4k_synth_instructions
 GO4K_BEGIN_CMDDEF(Instrument0)
 	db GO4K_ENV_ID	
-	db GO4K_PAN_ID	
+	db GO4K_ENV_ID	
 	db GO4K_OUT_ID
 GO4K_END_CMDDEF
 ;//	global commands
@@ -617,7 +617,7 @@ section .data
 go4k_synth_parameter_values
 GO4K_BEGIN_PARAMDEF(Instrument0)
 	GO4K_ENV	ATTAC(64),DECAY(64),SUSTAIN(64),RELEASE(80),GAIN(128)	
-	GO4K_PAN	PANNING(64)	
+	GO4K_ENV	ATTAC(95),DECAY(64),SUSTAIN(64),RELEASE(80),GAIN(128)	
 	GO4K_OUT	GAIN(128), AUXSEND(0)
 GO4K_END_PARAMDEF
 ;//	global parameters
@@ -643,10 +643,9 @@ _go4k_delay_times
 section .data
 
 global _test_name
-_test_name	db 'test_env', 0          ; null terminated string
+_test_name			db 'test_envelope', 0          ; null terminated string
 
 global _test_max_samples
-_test_max_samples
-	dd MAX_SAMPLES
+_test_max_samples	dd MAX_SAMPLES
 
 %include "../src/4klang.inc"
diff --git a/tests/test_envelope_expected.raw b/tests/test_envelope_expected.raw
new file mode 100644
index 0000000..59c0e67
Binary files /dev/null and b/tests/test_envelope_expected.raw differ