AudioService may have GetLengthInSeconds method as it may be helpful for various use-cases.

Author: AddictedCS

src/SoundFingerprinting/Audio/IAudioService.cs

@@ -29,5 +29,12 @@ public interface IAudioService
         /// <param name="sampleRate">Target sample rate</param>
         /// <returns>Audio samples</returns>
         AudioSamples ReadMonoSamplesFromFile(string pathToSourceFile, int sampleRate);
+        
+        /// <summary>
+        ///  Returns a usually accurate estimate for the length of the file
+        /// </summary>
+        /// <param name="pathToSourceFile">Path to audio source to get it's length from</param>
+        /// <returns>Length in seconds</returns>
+        float GetLengthInSeconds(string pathToSourceFile);
     }
 }