Correct docstring for seek

include/SFML/Audio/InputSoundFile.hpp

@@ -159,8 +159,9 @@ public:
     /// other overload.
     ///
     /// The sample offset takes the channels into account.
-    /// Offsets can be calculated like this:
-    /// `sampleNumber * sampleRate * channelCount`
+    /// If you have a time offset instead, you can easily find
+    /// the corresponding sample offset with the following formula:
+    /// `timeInSeconds * sampleRate * channelCount`
     /// If the given offset exceeds to total number of samples,
     /// this function jumps to the end of the sound file.
     ///

include/SFML/Audio/SoundFileReader.hpp

@@ -80,8 +80,9 @@ public:
     /// \brief Change the current read position to the given sample offset
     ///
     /// The sample offset takes the channels into account.
-    /// Offsets can be calculated like this:
-    /// `sampleNumber * sampleRate * channelCount`
+    /// If you have a time offset instead, you can easily find
+    /// the corresponding sample offset with the following formula:
+    /// `timeInSeconds * sampleRate * channelCount`
     /// If the given offset exceeds to total number of samples,
     /// this function must jump to the end of the file.
     ///

src/SFML/Audio/SoundFileReaderFlac.hpp

@@ -83,8 +83,9 @@ public:
     /// \brief Change the current read position to the given sample offset
     ///
     /// The sample offset takes the channels into account.
-    /// Offsets can be calculated like this:
-    /// `sampleNumber * sampleRate * channelCount`
+    /// If you have a time offset instead, you can easily find
+    /// the corresponding sample offset with the following formula:
+    /// `timeInSeconds * sampleRate * channelCount`
     /// If the given offset exceeds to total number of samples,
     /// this function must jump to the end of the file.
     ///

src/SFML/Audio/SoundFileReaderOgg.hpp

@@ -83,8 +83,9 @@ public:
     /// \brief Change the current read position to the given sample offset
     ///
     /// The sample offset takes the channels into account.
-    /// Offsets can be calculated like this:
-    /// `sampleNumber * sampleRate * channelCount`
+    /// If you have a time offset instead, you can easily find
+    /// the corresponding sample offset with the following formula:
+    /// `timeInSeconds * sampleRate * channelCount`
     /// If the given offset exceeds to total number of samples,
     /// this function must jump to the end of the file.
     ///

src/SFML/Audio/SoundFileReaderWav.hpp

@@ -75,8 +75,9 @@ public:
     /// \brief Change the current read position to the given sample offset
     ///
     /// The sample offset takes the channels into account.
-    /// Offsets can be calculated like this:
-    /// `sampleNumber * sampleRate * channelCount`
+    /// If you have a time offset instead, you can easily find
+    /// the corresponding sample offset with the following formula:
+    /// `timeInSeconds * sampleRate * channelCount`
     /// If the given offset exceeds to total number of samples,
     /// this function must jump to the end of the file.
     ///