diff --git a/tensorflow_io/audio/kernels/audio_kernels.cc b/tensorflow_io/audio/kernels/audio_kernels.cc
index 022dc6f49..a46b79eb8 100644
--- a/tensorflow_io/audio/kernels/audio_kernels.cc
+++ b/tensorflow_io/audio/kernels/audio_kernels.cc
@@ -83,18 +83,36 @@ class WAVReadable : public IOReadableInterface {
 
     StringPiece result;
     TF_RETURN_IF_ERROR(file_->Read(0, sizeof(header_), &result, (char *)(&header_)));
+    header_length_ = sizeof(header_);
+    int64 fmt_position = 12;
+    while (memcmp(header_.fmt, "fmt ", 4) != 0) {
+      // Skip JUNK/bext/etc field.
+      if (memcmp(header_.fmt, "JUNK", 4) != 0 &&
+          memcmp(header_.fmt, "bext", 4) != 0 &&
+          memcmp(header_.fmt, "iXML", 4) != 0 &&
+          memcmp(header_.fmt, "qlty", 4) != 0 &&
+          memcmp(header_.fmt, "mext", 4) != 0 &&
+          memcmp(header_.fmt, "levl", 4) != 0 &&
+          memcmp(header_.fmt, "link", 4) != 0 &&
+          memcmp(header_.fmt, "axml", 4) != 0) {
+        return errors::InvalidArgument("unexpected field: ", header_.fmt);
+      }
+      int32 size_of_chunk = 4 + 4 + header_.fmt_size;
+      if (header_.fmt_size % 2 == 1) {
+        size_of_chunk += 1;
+      }
+      fmt_position += size_of_chunk;
+      // Re-read the header
+      TF_RETURN_IF_ERROR(file_->Read(fmt_position, sizeof(header_) - 12, &result, (char *)(&header_) + 12));
+      header_length_ = fmt_position + sizeof(header_) - 12;
+    }
 
     TF_RETURN_IF_ERROR(ValidateWAVHeader(&header_));
     if (header_.riff_size + 8 != file_size_) {
       // corrupted file?
     }
     int64 filesize = header_.riff_size + 8;
-
-    int64 position = result.size();
-
-    if (header_.fmt_size != 16) {
-      position += header_.fmt_size - 16;
-    }
+    int64 position = header_length_ + header_.fmt_size - 16;
 
     int64 nSamples = 0;
     do {
@@ -167,7 +185,7 @@ class WAVReadable : public IOReadableInterface {
       // corrupted file?
     }
     int64 filesize = header_.riff_size + 8;
-    int64 position = sizeof(header_) + header_.fmt_size - 16;
+    int64 position = header_length_ + header_.fmt_size - 16;
     do {
       StringPiece result;
       struct DataHeader head;
@@ -241,6 +259,7 @@ class WAVReadable : public IOReadableInterface {
   DataType dtype_;
   TensorShape shape_;
   struct WAVHeader header_;
+  int64 header_length_;
 };
 
 REGISTER_KERNEL_BUILDER(Name("IO>WAVReadableInit").Device(DEVICE_CPU),