diff --git a/common/utils.go b/common/utils.go
index 587de537..d9db67d0 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -249,13 +249,38 @@ func SaveTmpFile(filename string, data io.Reader) (string, error) {
 }
 
 // GetAudioDuration returns the duration of an audio file in seconds.
-func GetAudioDuration(ctx context.Context, filename string) (float64, error) {
+func GetAudioDuration(ctx context.Context, filename string, ext string) (float64, error) {
 	// ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 {{input}}
 	c := exec.CommandContext(ctx, "ffprobe", "-v", "error", "-show_entries", "format=duration", "-of", "default=noprint_wrappers=1:nokey=1", filename)
 	output, err := c.Output()
 	if err != nil {
 		return 0, errors.Wrap(err, "failed to get audio duration")
 	}
+  durationStr := string(bytes.TrimSpace(output))
+  if durationStr == "N/A" {
+    // Create a temporary output file name
+    tmpFp, err := os.CreateTemp("", "audio-*"+ext)
+    if err != nil {
+      return 0, errors.Wrap(err, "failed to create temporary file")
+    }
+    tmpName := tmpFp.Name()
+    // Close immediately so ffmpeg can open the file on Windows.
+    _ = tmpFp.Close()
+    defer os.Remove(tmpName)
 
-	return strconv.ParseFloat(string(bytes.TrimSpace(output)), 64)
+    // ffmpeg -y -i filename -vcodec copy -acodec copy <tmpName>
+    ffmpegCmd := exec.CommandContext(ctx, "ffmpeg", "-y", "-i", filename, "-vcodec", "copy", "-acodec", "copy", tmpName)
+    if err := ffmpegCmd.Run(); err != nil {
+      return 0, errors.Wrap(err, "failed to run ffmpeg")
+    }
+
+    // Recalculate the duration of the new file
+    c = exec.CommandContext(ctx, "ffprobe", "-v", "error", "-show_entries", "format=duration", "-of", "default=noprint_wrappers=1:nokey=1", tmpName)
+    output, err := c.Output()
+    if err != nil {
+      return 0, errors.Wrap(err, "failed to get audio duration after ffmpeg")
+    }
+    durationStr = string(bytes.TrimSpace(output))
+  }
+	return strconv.ParseFloat(durationStr, 64)
 }
diff --git a/relay/channel/openai/relay-openai.go b/relay/channel/openai/relay-openai.go
index 2e3d8df1..4dc0fc60 100644
--- a/relay/channel/openai/relay-openai.go
+++ b/relay/channel/openai/relay-openai.go
@@ -8,6 +8,7 @@ import (
 	"math"
 	"mime/multipart"
 	"net/http"
+	"path/filepath"
 	"one-api/common"
 	"one-api/constant"
 	"one-api/dto"
@@ -345,13 +346,14 @@ func countAudioTokens(c *gin.Context) (int, error) {
 	if err = c.ShouldBind(&reqBody); err != nil {
 		return 0, errors.WithStack(err)
 	}
-
+  ext := filepath.Ext(reqBody.File.Filename) // 获取文件扩展名
 	reqFp, err := reqBody.File.Open()
 	if err != nil {
 		return 0, errors.WithStack(err)
 	}
+  defer reqFp.Close()
 
-	tmpFp, err := os.CreateTemp("", "audio-*")
+	tmpFp, err := os.CreateTemp("", "audio-*"+ext)
 	if err != nil {
 		return 0, errors.WithStack(err)
 	}
@@ -365,7 +367,7 @@ func countAudioTokens(c *gin.Context) (int, error) {
 		return 0, errors.WithStack(err)
 	}
 
-	duration, err := common.GetAudioDuration(c.Request.Context(), tmpFp.Name())
+	duration, err := common.GetAudioDuration(c.Request.Context(), tmpFp.Name(), ext)
 	if err != nil {
 		return 0, errors.WithStack(err)
 	}