diff --git a/context.go b/context.go
index b91ae5c..c6c9931 100644
--- a/context.go
+++ b/context.go
@@ -91,7 +91,7 @@ func NewContext(options *NewContextOptions) (*Context, chan struct{}, error) {
 
 	var bufferSizeInBytes int
 	if options.BufferSize != 0 {
-		// The underying driver always uses 32bit floats.
+		// The underlying driver always uses 32bit floats.
 		bytesPerSample := options.ChannelCount * 4
 		bytesPerSecond := options.SampleRate * bytesPerSample
 		bufferSizeInBytes = int(int64(options.BufferSize) * int64(bytesPerSecond) / int64(time.Second))
diff --git a/driver_nintendosdk.cpp b/driver_nintendosdk.cpp
index a087286..659a562 100644
--- a/driver_nintendosdk.cpp
+++ b/driver_nintendosdk.cpp
@@ -14,7 +14,7 @@
 
 //go:build nintendosdk
 
-// The actual implementaiton will be provided by github.com/hajimehoshi/uwagaki.
+// The actual implementation will be provided by github.com/hajimehoshi/uwagaki.
 
 #include <cstddef>
 
diff --git a/driver_playstation5.cpp b/driver_playstation5.cpp
index 54ca64d..f410b1a 100644
--- a/driver_playstation5.cpp
+++ b/driver_playstation5.cpp
@@ -14,7 +14,7 @@
 
 //go:build playstation5
 
-// The actual implementaiton will be provided by github.com/hajimehoshi/uwagaki.
+// The actual implementation will be provided by github.com/hajimehoshi/uwagaki.
 
 #include <cstddef>
 
diff --git a/driver_winmm_windows.go b/driver_winmm_windows.go
index 04f935e..b729060 100644
--- a/driver_winmm_windows.go
+++ b/driver_winmm_windows.go
@@ -124,7 +124,7 @@ func (c *winmmContext) start() error {
 		wBitsPerSample:  bitsPerSample,
 	}
 
-	// TOOD: What about using an event instead of a callback? PortAudio and other libraries do that.
+	// TODO: What about using an event instead of a callback? PortAudio and other libraries do that.
 	w, err := waveOutOpen(f, waveOutOpenCallback)
 	if errors.Is(err, windows.ERROR_NOT_FOUND) {
 		// This can happen when no device is found (#77).
@@ -195,7 +195,7 @@ func (c *winmmContext) isHeaderAvailable() bool {
 
 var waveOutOpenCallback = windows.NewCallback(func(hwo, uMsg, dwInstance, dwParam1, dwParam2 uintptr) uintptr {
 	// Queuing a header in this callback might not work especially when a headset is connected or disconnected.
-	// Just signal the condition vairable and don't do other things.
+	// Just signal the condition variable and don't do other things.
 	const womDone = 0x3bd
 	if uMsg != womDone {
 		return 0
diff --git a/internal/mux/mux.go b/internal/mux/mux.go
index c695e7d..9791d27 100644
--- a/internal/mux/mux.go
+++ b/internal/mux/mux.go
@@ -211,7 +211,7 @@ func (p *Player) Play() {
 }
 
 func (p *playerImpl) Play() {
-	// Goroutines don't work effiently on Windows. Avoid using them (hajimehoshi/ebiten#1768).
+	// Goroutines don't work efficiently on Windows. Avoid using them (hajimehoshi/ebiten#1768).
 	if runtime.GOOS == "windows" {
 		p.m.Lock()
 		defer p.m.Unlock()
diff --git a/internal/oboe/oboe_oboe_Definitions_android.h b/internal/oboe/oboe_oboe_Definitions_android.h
index aaf4d64..ec1a751 100644
--- a/internal/oboe/oboe_oboe_Definitions_android.h
+++ b/internal/oboe/oboe_oboe_Definitions_android.h
@@ -20,7 +20,7 @@
 #include <cstdint>
 #include <type_traits>
 
-// Oboe needs to be able to build on old NDKs so we use hard coded constants.
+// Oboe needs to be able to build on old ANDKs so we use hard coded constants.
 // The correctness of these constants is verified in "aaudio/AAudioLoader.cpp".
 
 namespace oboe {
@@ -336,7 +336,7 @@ namespace oboe {
 
         /**
          * Use this for notifying the user when a message has arrived or some
-         * other background event has occured.
+         * other background event has occurred.
          */
         Notification = 5, // AAUDIO_USAGE_NOTIFICATION
 
diff --git a/player.go b/player.go
index 3015f36..f99818e 100644
--- a/player.go
+++ b/player.go
@@ -40,7 +40,7 @@ func (p *Player) IsPlaying() bool {
 	return p.player.IsPlaying()
 }
 
-// Reset clears the underyling buffer and pauses its playing.
+// Reset clears the underlying buffer and pauses its playing.
 //
 // Deprecated: use Pause or Seek instead.
 func (p *Player) Reset() {