diff --git a/shell/bash/avt/README.md b/shell/bash/avt/README.md
index 6beb37a..5d6a849 100644
--- a/shell/bash/avt/README.md
+++ b/shell/bash/avt/README.md
@@ -16,12 +16,14 @@
     rec_out: set output file (default: $HOME/Desktop/$(date +%F_%H-%M-%S).mkv)
     rec_fps: set framerate (default: 60)
     rec_res: set resolution (default: 1920x1080)
-    rec_display: choose the display to record (default: $DISPLAY)
-    rec_crf: set crf, use 0 for lossless (default: 6)
-    rec_adev: set pulseaudio source devices (default: default and first running monitor) [array]
+    rec_preset: set preset (default: ultrafast)
+    rec_vrate: replace -crf options
+    rec_crf: set crf, use 0 for lossless (default: 10)
+    rec_adev: space separated pulseaudio source devices (default: default and first running monitor)
     rec_ar: set audio samplerate (default: 96000)
     rec_normalize: immediately start nvid after recording ends [set to enable]
 
+
     ./avt nvid / normalize
     Normalize and compress video & audio
     Usage: ./avt nvid <file> [outfile]
@@ -32,7 +34,7 @@
     nvid_rgb: use libx264rgb [set to enable]
     nvid_pixfmt: set pixel format (default: yuv420p)
     nvid_profile: set profile (default: high)
-    nvid_ac: set audio codec (default: aac)
+    nvid_ac: set audio codec (default: libopus)
     nvid_ba: set audio bitrate (default: 160k)
     nvid_ar: set audio samplerate (default: 48000)
 
diff --git a/shell/bash/avt/avt b/shell/bash/avt/avt
index 2cee628..8c2b347 100755
--- a/shell/bash/avt/avt
+++ b/shell/bash/avt/avt
@@ -21,7 +21,6 @@ Enviroment variables:
 rec_out: set output file (default: $HOME/Desktop/$(date +%F_%H-%M-%S).mkv)
 rec_fps: set framerate (default: 60)
 rec_res: set resolution (default: 1920x1080)
-rec_out: set output file (default: $HOME/Desktop/$(date +%F_%H-%M-%S).mkv)
 rec_preset: set preset (default: ultrafast)
 rec_vrate: replace -crf options
 rec_crf: set crf, use 0 for lossless (default: 10)
@@ -83,7 +82,7 @@ foreach (@sinks) {
 		$pulse_inputs \
 		-filter_complex "$audio_filter" \
 		-c:a pcm_s16le -ar "${rec_ar:-96000}" \
-		-c:v libx264rgb ${avt_cl+-x264opts opencl} -profile:v high444 -preset "${rec_preset:-ultrafast}" ${rec_vrate:--crf "${rec_crf:-10}"} -tune zerolatency -r 60 \
+		-c:v libx264rgb ${avt_cl+-x264opts opencl} -profile:v high444 -preset "${rec_preset:-ultrafast}" ${rec_vrate:--crf "${rec_crf:-10}"} -tune zerolatency -r ${rec_fps:-60} \
 		-map 0:v $audio_maps -map '[merged]:a' \
 		"$OUTPUTFILE"