diff --git a/modules/ffprobe/src/lib.rs b/modules/ffprobe/src/lib.rs
index eea4cf6..f8a8a35 100644
--- a/modules/ffprobe/src/lib.rs
+++ b/modules/ffprobe/src/lib.rs
@@ -35,10 +35,12 @@ fn extract(
 		}));
 	}
 
+
 	let output = String::from_utf8(output.stdout).unwrap();
 	let ffprobe_out: serde_json::Result<ffprobe_output::FFProbeOutput> =
 		serde_json::from_str(output.as_str());
 
+
 	Ok(ffprobe_out.unwrap())
 }
 
diff --git a/src/commands/transcode.rs b/src/commands/transcode.rs
index 34914f1..58c7d72 100644
--- a/src/commands/transcode.rs
+++ b/src/commands/transcode.rs
@@ -30,24 +30,49 @@ pub fn transcode_command(
 	_args: CLIArgs,
 	transcode_args: &TranscodeCommandArgs,
 ) -> Result<(), Box<dyn std::error::Error>> {
-	if let Some(preset) = &transcode_args.preset {
-		if preset == "list" {
-			print_presets();
-			exit(0);
+	let input_file = AudioFile::from_path("".to_string(), PathBuf::from(&transcode_args.source));
+	let output_file = AudioFile::from_path("".to_string(), PathBuf::from(&transcode_args.dest));
+
+	let mut preset = transcode_args.preset.clone().unwrap_or("auto".to_string());
+
+	if preset == "list" {
+		print_presets();
+		exit(0);
+	}
+
+	if preset == "auto" && transcode_args.transcode_config.is_none() {
+		let extension = output_file
+			.extension()
+			.clone()
+			.expect("a extension is required for the output file");
+
+		preset = match extension.as_str() {
+			"mp3" => "mp3-v2",
+			"opus" => "opus-96k",
+			"flac" => "flac",
+			"ogg" => "vorbis-v6",
+			_ => {
+				println!(
+					"could not auto determine a suitable transcode preset for extension '{}'",
+					output_file.extension().unwrap()
+				);
+				exit(0);
+			}
 		}
+		.to_string();
 	}
 
 	let transcode_config = transcode_preset_or_config(
-		transcode_args.preset.as_ref(),
+		match transcode_args.transcode_config {
+			Some(_) => None,
+			None => Some(&preset),
+		},
 		transcode_args.transcode_config.as_ref(),
 	)
 	.expect("transcode config error");
 
 	println!("Transcoding");
 
-	let input_file = AudioFile::from_path("".to_string(), PathBuf::from(&transcode_args.source));
-	let output_file = AudioFile::from_path("".to_string(), PathBuf::from(&transcode_args.dest));
-
 	if !transcode_args.ignore_extension {
 		if let Some(ref file_extension) = transcode_config.file_extension {
 			if Some(file_extension) != output_file.extension().as_ref() {
@@ -58,7 +83,8 @@ pub fn transcode_command(
 						"please change it to {} ",
 						"or run with --ignore-extension"
 					),
-					output_file.extension().unwrap(), file_extension
+					output_file.extension().unwrap(),
+					file_extension
 				);
 			}
 		}