diff --git a/internal/mixer/mixer_internal_test.go b/internal/mixer/mixer_internal_test.go
index 0e97ef7..8fc8469 100644
--- a/internal/mixer/mixer_internal_test.go
+++ b/internal/mixer/mixer_internal_test.go
@@ -142,171 +142,4 @@ func TestPlayDoesNotDeadlockWhenUninitialized(t *testing.T) {
 	}
 }
 
-func TestParseSinkLine(t *testing.T) {
-	tests := []struct {
-		name     string
-		input    string
-		wantOK   bool
-		wantID   int
-		wantName string
-		wantVol  float64
-		wantDef  bool
-	}{
-		{
-			name:     "default sink with volume",
-			input:    "*51. USB Audio   [vol: 1.00]",
-			wantOK:   true,
-			wantID:   51,
-			wantName: "USB Audio",
-			wantVol:  1.00,
-			wantDef:  true,
-		},
-		{
-			name:     "non-default sink with volume",
-			input:    "33. Built-in Audio Analog Stereo   [vol: 0.65]",
-			wantOK:   true,
-			wantID:   33,
-			wantName: "Built-in Audio Analog Stereo",
-			wantVol:  0.65,
-			wantDef:  false,
-		},
-		{
-			name:     "default sink with muted tag",
-			input:    "*51. USB Audio   [vol: 0.50 MUTED]",
-			wantOK:   true,
-			wantID:   51,
-			wantName: "USB Audio",
-			wantVol:  0.50,
-			wantDef:  true,
-		},
-		{
-			name:     "sink without volume field",
-			input:    "33. Built-in Audio Analog Stereo",
-			wantOK:   true,
-			wantID:   33,
-			wantName: "Built-in Audio Analog Stereo",
-			wantVol:  0.0,
-			wantDef:  false,
-		},
-		{
-			name:     "empty string",
-			input:    "",
-			wantOK:   false,
-		},
-		{
-			name:     "no dot separator",
-			input:    "no dot here",
-			wantOK:   false,
-		},
-		{
-			name:     "non-numeric ID",
-			input:    "abc. Some Device   [vol: 0.80]",
-			wantOK:   false,
-		},
-		{
-			name:     "zero volume",
-			input:    "1. Muted Device   [vol: 0.00]",
-			wantOK:   true,
-			wantID:   1,
-			wantName: "Muted Device",
-			wantVol:  0.0,
-			wantDef:  false,
-		},
-	}
 
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			sink, ok := parseSinkLine(tt.input)
-			if ok != tt.wantOK {
-				t.Fatalf("parseSinkLine(%q) ok = %v, want %v", tt.input, ok, tt.wantOK)
-			}
-			if !ok {
-				return
-			}
-			if sink.ID != tt.wantID {
-				t.Errorf("ID = %d, want %d", sink.ID, tt.wantID)
-			}
-			if sink.Name != tt.wantName {
-				t.Errorf("Name = %q, want %q", sink.Name, tt.wantName)
-			}
-			if sink.Volume != tt.wantVol {
-				t.Errorf("Volume = %f, want %f", sink.Volume, tt.wantVol)
-			}
-			if sink.IsDefault != tt.wantDef {
-				t.Errorf("IsDefault = %v, want %v", sink.IsDefault, tt.wantDef)
-			}
-		})
-	}
-}
-
-func TestParseSinks(t *testing.T) {
-	tests := []struct {
-		name      string
-		input     string
-		wantCount int
-		wantNames []string
-	}{
-		{
-			name: "two sinks",
-			input: `Audio
- Sinks:
-  *51. USB Audio   [vol: 1.00]
-   33. Built-in Audio Analog Stereo   [vol: 0.65]
- Sources:
-  52. Microphone   [vol: 0.80]`,
-			wantCount: 2,
-			wantNames: []string{"USB Audio", "Built-in Audio Analog Stereo"},
-		},
-		{
-			name: "no sinks section",
-			input: `Audio
- Sources:
-  52. Microphone   [vol: 0.80]`,
-			wantCount: 0,
-		},
-		{
-			name: "sinks with tree characters",
-			input: `Audio
- ├─Sinks:
- │ ├─*51. USB Audio   [vol: 1.00]
- │ └─33. Built-in Audio Analog Stereo   [vol: 0.65]
- └─Sources:
-    └─52. Microphone   [vol: 0.80]`,
-			wantCount: 2,
-			wantNames: []string{"USB Audio", "Built-in Audio Analog Stereo"},
-		},
-		{
-			name: "empty input",
-			input: ``,
-			wantCount: 0,
-		},
-		{
-			name: "video section ignored",
-			input: `Video
- Sinks:
-  100. HDMI Output   [vol: 1.00]
-Audio
- Sinks:
-  51. USB Audio   [vol: 1.00]`,
-			wantCount: 1,
-			wantNames: []string{"USB Audio"},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			sinks, err := parseSinks([]byte(tt.input))
-			if err != nil {
-				t.Fatalf("parseSinks returned error: %v", err)
-			}
-			if len(sinks) != tt.wantCount {
-				t.Fatalf("got %d sinks, want %d", len(sinks), tt.wantCount)
-			}
-			for i, name := range tt.wantNames {
-				if sinks[i].Name != name {
-					t.Errorf("sink[%d].Name = %q, want %q", i, sinks[i].Name, name)
-				}
-			}
-		})
-	}
-}