use updated Data API

Author: fulldecent

Formant Analyzer/Formant Analyzer/SpeechAnalyzer.swift

@@ -94,9 +94,9 @@ class SpeechAnalyzer {
 
     /// Creates an analyzer with given 16-bit PCM samples
     init(int16Samples data: Data, withFrequency rate: Int) {
-        let bytesPointer = (data as NSData).bytes.bindMemory(to: Int16.self, capacity: data.count)
-        let bufferPointer = UnsafeBufferPointer(start: bytesPointer, count: data.count / MemoryLayout<Int16>.size)
-        samples = [Int16](bufferPointer)
+        samples = data.withUnsafeBytes {
+            Array(UnsafeBufferPointer<Int16>(start: $0, count: data.count / MemoryLayout<Int16>.size))
+        }
         sampleRate = rate
     }
 

Formant Analyzer/Formant AnalyzerTests/SpeechAnalyzerTests.swift

@@ -120,11 +120,8 @@ class SpeechAnalyzerTests: XCTestCase {
 
     /// Make sure nothing crashes when input data is empty
     func testZeroData() {
-        
+        let speechData = Data()
+        let analyzer = SpeechAnalyzer(int16Samples: speechData as Data, withFrequency: 44100)
+        let result = analyzer.estimatedLpcCoefficients
     }
-    
-    
-    
-    
-    
 }