diff --git a/examples/sokol/sounds/melody.v b/examples/sokol/sounds/melody.v
index 341ded9b4b..4bc645d95b 100644
--- a/examples/sokol/sounds/melody.v
+++ b/examples/sokol/sounds/melody.v
@@ -12,8 +12,7 @@ mut:
 	gg      &gg.Context = unsafe { nil } // used for drawing
 }
 
-fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int, mut acontext AppState) {
-	mut soundbuffer := unsafe { buffer }
+fn my_audio_stream_callback(mut soundbuffer &f32, num_frames int, num_channels int, mut acontext AppState) {
 	for frame := 0; frame < num_frames; frame++ {
 		t := int(f32(acontext.frame_0 + frame) * 0.245)
 		// "Techno" by Gabriel Miceli
@@ -21,11 +20,9 @@ fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int, mut a
 			(t * (((t / 640 | 0) ^ ((t / 640 | 0) - 2)) % 13) / 2 & 127)
 		for ch := 0; ch < num_channels; ch++ {
 			idx := frame * num_channels + ch
-			unsafe {
-				a := f32(u8(y) - 127) / 255.0
-				soundbuffer[idx] = a
-				acontext.frames[idx & 2047] = a
-			}
+			a := f32(u8(y) - 127) / 255.0
+			soundbuffer[idx] = a
+			acontext.frames[idx & 2047] = a
 		}
 	}
 	acontext.frame_0 += num_frames
diff --git a/examples/sokol/sounds/simple_sin_tones.v b/examples/sokol/sounds/simple_sin_tones.v
index edb3069d30..671cb05e4b 100644
--- a/examples/sokol/sounds/simple_sin_tones.v
+++ b/examples/sokol/sounds/simple_sin_tones.v
@@ -10,22 +10,19 @@ fn sintone(periods int, frame int, num_frames int) f32 {
 	return math.sinf(f32(periods) * (2 * math.pi) * f32(frame) / f32(num_frames))
 }
 
-fn my_audio_stream_callback(buffer &f32, num_frames int, num_channels int) {
+fn my_audio_stream_callback(mut soundbuffer &f32, num_frames int, num_channels int) {
 	ms := sw.elapsed().milliseconds() - sw_start_ms
-	unsafe {
-		mut soundbuffer := buffer
-		for frame := 0; frame < num_frames; frame++ {
-			for ch := 0; ch < num_channels; ch++ {
-				idx := frame * num_channels + ch
-				if ms < 250 {
-					soundbuffer[idx] = 0.5 * sintone(20, frame, num_frames)
-				} else if ms < 300 {
-					soundbuffer[idx] = 0.5 * sintone(25, frame, num_frames)
-				} else if ms < 1500 {
-					soundbuffer[idx] *= sintone(22, frame, num_frames)
-				} else {
-					soundbuffer[idx] = 0.5 * sintone(25, frame, num_frames)
-				}
+	for frame := 0; frame < num_frames; frame++ {
+		for ch := 0; ch < num_channels; ch++ {
+			idx := frame * num_channels + ch
+			if ms < 250 {
+				soundbuffer[idx] = 0.5 * sintone(20, frame, num_frames)
+			} else if ms < 300 {
+				soundbuffer[idx] = 0.5 * sintone(25, frame, num_frames)
+			} else if ms < 1500 {
+				soundbuffer[idx] *= sintone(22, frame, num_frames)
+			} else {
+				soundbuffer[idx] = 0.5 * sintone(25, frame, num_frames)
 			}
 		}
 	}
diff --git a/examples/sokol/sounds/wav_player.v b/examples/sokol/sounds/wav_player.v
index f8b35c16d3..6b8d4e42e5 100644
--- a/examples/sokol/sounds/wav_player.v
+++ b/examples/sokol/sounds/wav_player.v
@@ -37,7 +37,7 @@ fn play_sounds(files []string) ! {
 }
 
 //
-fn audio_player_callback(buffer &f32, num_frames int, num_channels int, mut p Player) {
+fn audio_player_callback(mut buffer &f32, num_frames int, num_channels int, mut p Player) {
 	if p.finished {
 		return
 	}