can i add text to rawtobytedata ?

[rlebeau]

in receiving part can i delete the Audio1 Text and keep the actual byets ?

You could, by simply using System.Delete() (XE7+ only) or Indy's RemoveBytes(). Or, you could Copy()/CopyTIdBytes() the wanted bytes to another array.

But really, there is usually no need to do any of this. If the 1st 6 bytes are 'Audio1', just ignore those bytes and use/save the remaining bytes as needed. What is so hard about that?