     { header riff-chunk-header }
     { body uchar[0] } ;
 
-ERROR: invalid-wav-file ;
+ERROR: invalid-audio-file ;
 
 : ensured-read ( count -- output/f )
     [ read ] keep over length = [ drop f ] unless ;
 : ensured-read* ( count -- output )
-    ensured-read [ invalid-wav-file ] unless* ;
+    ensured-read [ invalid-audio-file ] unless* ;
 
 : read-chunk ( -- byte-array/f )
     4 ensured-read [ 4 ensured-read* dup le> ensured-read* 3append ] [ f ] if* ;

        { [ dup FMT-MAGIC  wav-fmt-chunk  check-chunk ] [ wav-fmt-chunk  memory>struct fmt!  ] }
        { [ dup DATA-MAGIC wav-data-chunk check-chunk ] [ wav-data-chunk memory>struct data! ] }
    } cond ] while drop
    fmt data 2dup and [ invalid-wav-file ] unless ;

: verify-wav ( chunk -- )
    {
        [ RIFF-MAGIC id= ]
        [ riff-chunk memory>struct format>> 4 memory>byte-array WAVE-MAGIC id= ]
    } 1&&
    [ invalid-wav-file ] unless ;

: (read-wav) ( -- audio )
    read-wav-chunks

    ] [
        [ header>> size>> 4 memory>byte-array le> dup ]
        [ body>> >c-ptr ] bi swap memory>byte-array
    ] bi*
    <audio>
    convert-data-endian ;

: read-wav ( filename -- audio )
    binary [
