From 77e544ce4121810cb347d4d6ce2e5507cde3550c Mon Sep 17 00:00:00 2001
From: Chigozirim Igweamaka <cgzirim@gmail.com>
Date: Tue, 1 Apr 2025 17:57:25 +0100
Subject: [PATCH] Add ReformatWAV function for channel conversion

---
 utils/helpers.go | 4 ----
 wav/convert.go   | 2 ++
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/utils/helpers.go b/utils/helpers.go
index cd7ceb0..98c1e56 100644
--- a/utils/helpers.go
+++ b/utils/helpers.go
@@ -38,13 +38,11 @@ func FloatsToBytes(data []float64, bitsPerSample int) ([]byte, error) {
 	switch bitsPerSample {
 	case 8:
 		for _, sample := range data {
-			// Convert float to 8-bit unsigned integer
 			val := uint8((sample + 1.0) * 127.5)
 			byteData = append(byteData, byte(val))
 		}
 	case 16:
 		for _, sample := range data {
-			// Convert float to 16-bit signed integer
 			val := int16(sample * 32767.0)
 			buf := make([]byte, 2)
 			binary.LittleEndian.PutUint16(buf, uint16(val))
@@ -52,7 +50,6 @@ func FloatsToBytes(data []float64, bitsPerSample int) ([]byte, error) {
 		}
 	case 24:
 		for _, sample := range data {
-			// Convert float to 24-bit signed integer
 			val := int32(sample * 8388607.0)
 			buf := make([]byte, 4)
 			binary.LittleEndian.PutUint32(buf, uint32(val)<<8) // Shift by 8 bits to fit 24-bit
@@ -60,7 +57,6 @@ func FloatsToBytes(data []float64, bitsPerSample int) ([]byte, error) {
 		}
 	case 32:
 		for _, sample := range data {
-			// Convert float to 32-bit signed integer
 			val := int32(sample * 2147483647.0)
 			buf := make([]byte, 4)
 			binary.LittleEndian.PutUint32(buf, uint32(val))
diff --git a/wav/convert.go b/wav/convert.go
index aa5366b..1c815ba 100644
--- a/wav/convert.go
+++ b/wav/convert.go
@@ -51,6 +51,8 @@ func ConvertToWAV(inputFilePath string, channels int) (wavFilePath string, err e
 	return outputFile, nil
 }
 
+// ReformatWAV converts a given WAV file to the specified number of channels,
+// either mono (1 channel) or stereo (2 channels).
 func ReformatWAV(inputFilePath string, channels int) (reformatedFilePath string, errr error) {
 	if channels < 1 || channels > 2 {
 		channels = 1