title: PCAP to AMR Conversion with DTX
body: <p>I am trying to convert a PCAP containing a RTP Payload with an octet-aligned AMR-WB payload to a playable AMR file.</p>
  <p>Regarding the AMR storage format described in <a href="https://www.rfc-editor.org/rfc/rfc4867#section-4" rel="nofollow noreferrer">https://www.rfc-editor.org/rfc/rfc4867#section-4</a> between SID frames NO_DATA (0x7C) frames need to be inserted.
  This is especially important when using DTX (discontinuous transmission) mode.</p>
  <p>The question in <a href="https://stackoverflow.com/questions/9225661/amr-raw-output-from-wireshark-not-playing-in-players/18086585#18086585">AMR Raw Output from Wireshark not playing in players</a> describes a way to convert a single PCAP UDP packet to AMR but does not consider a whole packet flow where packets need to be concatenated or NO_DATA frames need to be inserted after SID frames in DTX mode.</p>
  <p>I managed converting it parsing every packet with PCAP.net and now wonder whether my output is correct. I could not find any information on which audio player supports AMR-WB in DTX Mode, though.</p>
  <p>VLC Player plays it correctly with the speech pauses, but shows the wrong total time of the file and when converting it to *.wav (using VLC), there will be no speech pauses anymore.</p>
  <p>I would like to analyze my speech data using a tool as audacity which shows the spectrum of the sound. Unfortunately, audacity shows loud bangs in the speech pauses (see picture). Therefore, I do not know whether audacity just does not support DTX or my output is corrupt?</p>
  <p>It would be great if you can help.</p>
  <p><img src="https://i.stack.imgur.com/VOx9D.png" alt="Audacity Bangs in Speech Pauses (SID+NO_DATA Frames)" /></p>
  <p>Here the output Soundfile (just use a hex editor and call it *.amr):</p>
  <pre><code>00000000h: 23 21 41 4D 52 2D 57 42 0A 4C EB FF BD F3 C7 7C ; #!AMR-WB.Lëÿ½óÇ|
  00000010h: 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½ó×|||||||Lë
  00000020h: FF BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD E3 ; ÿ½³—|||||||Lëÿ½ã
  00000030h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C ; ×|||||||Lëÿ½³—||
  00000040h: 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C 7C ; |||||Lëÿ½³—|||||
  00000050h: 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½³×|||||||L
  00000060h: EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³×|||||||Lëÿ½
  00000070h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C ; ó×|||||||Lëÿ½³—|
  00000080h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C ; ||||||Lëÿ½³—||||
  00000090h: 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½ó×|||||||
  000000a0h: 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½ó×|||||||Lëÿ
  000000b0h: BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 ; ½³—|||||||Lëÿ½ó×
  000000c0h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C ; |||||||Lëÿ½ó×|||
  000000d0h: 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½³×||||||
  000000e0h: 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½ó—|||||||Lë
  000000f0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 ; ÿ½ó×|||||||Lëÿ½ó
  00000100h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C ; ×|||||||Lëÿ½ó×||
  00000110h: 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C 7C ; |||||Lëÿ½³—|||||
  00000120h: 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½³×|||||||L
  00000130h: EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³×|||||||Lëÿ½
  00000140h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C ; ó×|||||||Lëÿ½ó—|
  00000150h: 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C ; ||||||Lëÿ½ó×||||
  00000160h: 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½³×|||||||
  00000170h: 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³×|||||||Lëÿ
  00000180h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 ; ½ó×|||||||Lëÿ½ó—
  00000190h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C ; |||||||Lëÿ½ó×|||
  000001a0h: 7C 7C 7C 7C 4C EB FF BD F3 F7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó÷||||||
  000001b0h: 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½³×|||||||Lë
  000001c0h: FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD 63 ; ÿ½ó—|||||||Lëÿ½c
  000001d0h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C ; ×|||||||Lëÿ½³×||
  000001e0h: 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½³×|||||
  000001f0h: 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½ó—|||||||L
  00000200h: EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³×|||||||Lëÿ½
  00000210h: B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C ; ³×|||||||Lëÿ½³×|
  00000220h: 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C ; ||||||Lëÿ½ó×||||
  00000230h: 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½³×|||||||
  00000240h: 4C EB FF BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³—|||||||Lëÿ
  00000250h: BD F3 B7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 ; ½ó·|||||||Lëÿ½ó—
  00000260h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C ; |||||||Lëÿ½ó×|||
  00000270h: 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó×||||||
  00000280h: 7C 4C EB FF BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½³—|||||||Lë
  00000290h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 ; ÿ½ó×|||||||Lëÿ½ó
  000002a0h: 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C ; —|||||||Lëÿ½³×||
  000002b0h: 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½³×|||||
  000002c0h: 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½ó×|||||||L
  000002d0h: EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³×|||||||Lëÿ½
  000002e0h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C ; ó×|||||||Lëÿ½ó×|
  000002f0h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C ; ||||||Lëÿ½³—||||
  00000300h: 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½ó×|||||||
  00000310h: 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³×|||||||Lëÿ
  00000320h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 ; ½ó×|||||||Lëÿ½ó×
  00000330h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C ; |||||||Lëÿ½³×|||
  00000340h: 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó×||||||
  00000350h: 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½³×|||||||Lë
  00000360h: FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 ; ÿ½ó—|||||||Lëÿ½³
  00000370h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C ; ×|||||||Lëÿ½³×||
  00000380h: 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½ó×|||||
  00000390h: 7C 7C 4C EB FF BD A3 97 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½£—|||||||L
  000003a0h: EB FF BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½ã×|||||||Lëÿ½
  000003b0h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C ; ó×|||||||Lëÿ½ó—|
  000003c0h: 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C ; ||||||Lëÿ½ó—||||
  000003d0h: 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½ó×|||||||
  000003e0h: 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³×|||||||Lëÿ
  000003f0h: BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 ; ½³×|||||||Lëÿ½³×
  00000400h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C ; |||||||Lëÿ½ó—|||
  00000410h: 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó×||||||
  00000420h: 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½³×|||||||Lë
  00000430h: FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 ; ÿ½ó—|||||||Lëÿ½³
  00000440h: 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C ; —|||||||Lëÿ½³—||
  00000450h: 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½³×|||||
  00000460h: 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½ó—|||||||L
  00000470h: EB FF BD E3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½ã—|||||||Lëÿ½
  00000480h: B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C ; ³×|||||||Lëÿ½ó—|
  00000490h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C ; ||||||Lëÿ½³×||||
  000004a0h: 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½ó—|||||||
  000004b0h: 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³×|||||||Lëÿ
  000004c0h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 ; ½ó×|||||||Lëÿ½³×
  000004d0h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C ; |||||||Lëÿ½ó—|||
  000004e0h: 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½³×||||||
  000004f0h: 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½³×|||||||Lë
  00000500h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 ; ÿ½ó×|||||||Lëÿ½³
  00000510h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C ; ×|||||||Lëÿ½ó×||
  00000520h: 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C ; |||||Lëÿ½ó—|||||
  00000530h: 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½³—|||||||L
  00000540h: EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³×|||||||Lëÿ½
  00000550h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C ; ó×|||||||Lëÿ½ó×|
  00000560h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C ; ||||||Lëÿ½³×||||
  00000570h: 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½³—|||||||
  00000580h: 4C EB FF BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½ã×|||||||Lëÿ
  00000590h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD E3 D7 ; ½ó×|||||||Lëÿ½ã×
  000005a0h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C ; |||||||Lëÿ½³×|||
  000005b0h: 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó×||||||
  000005c0h: 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½ó×|||||||Lë
  000005d0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 ; ÿ½ó×|||||||Lëÿ½³
  000005e0h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C ; ×|||||||Lëÿ½ó×||
  000005f0h: 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½ó×|||||
  00000600h: 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½³×|||||||L
  00000610h: EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½ó—|||||||Lëÿ½
  00000620h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C ; ó×|||||||Lëÿ½ó×|
  00000630h: 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C ; ||||||Lëÿ½ó×||||
  00000640h: 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½ó×|||||||
  00000650h: 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½ó×|||||||Lëÿ
  00000660h: BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 ; ½³×|||||||Lëÿ½³×
  00000670h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C ; |||||||Lëÿ½³—|||
  00000680h: 7C 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó—||||||
  00000690h: 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½ó—|||||||Lë
  000006a0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD E3 ; ÿ½ó×|||||||Lëÿ½ã
  000006b0h: 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C ; —|||||||Lëÿ½³×||
  000006c0h: 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½³×|||||
  000006d0h: 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½³×|||||||L
  000006e0h: EB FF BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³—|||||||Lëÿ½
  000006f0h: B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C ; ³×|||||||Lëÿ½ó×|
  00000700h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C ; ||||||Lëÿ½³×||||
  00000710h: 7C 7C 7C 4C EB FF BD A3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½£×|||||||
  00000720h: 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½ó×|||||||Lëÿ
  00000730h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 ; ½ó×|||||||Lëÿ½ó×
  00000740h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C ; |||||||Lëÿ½ó×|||
  00000750h: 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó×||||||
  00000760h: 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½ó×|||||||Lë
  00000770h: FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 ; ÿ½³×|||||||Lëÿ½³
  00000780h: 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C ; —|||||||Lëÿ½³×||
  00000790h: 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½ó×|||||
  000007a0h: 7C 7C 4C EB FF BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½ã×|||||||L
  000007b0h: EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½ó×|||||||Lëÿ½
  000007c0h: E3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C ; ã×|||||||Lëÿ½³×|
  000007d0h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 97 7C 7C 7C 7C ; ||||||Lëÿ½³—||||
  000007e0h: 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½³×|||||||
  000007f0h: 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½ó×|||||||Lëÿ
  00000800h: BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 ; ½³—|||||||Lëÿ½³×
  00000810h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD E3 D7 7C 7C 7C ; |||||||Lëÿ½ã×|||
  00000820h: 7C 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó—||||||
  00000830h: 7C 4C EB FF BD E3 97 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½ã—|||||||Lë
  00000840h: FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 ; ÿ½³×|||||||Lëÿ½ó
  00000850h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C ; ×|||||||Lëÿ½ó×||
  00000860h: 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½³×|||||
  00000870h: 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½ó—|||||||L
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  00000890h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 97 7C ; ó×|||||||Lëÿ½ó—|
  000008a0h: 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C ; ||||||Lëÿ½ó×||||
  000008b0h: 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½³×|||||||
  000008c0h: 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³×|||||||Lëÿ
  000008d0h: BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 ; ½³—|||||||Lëÿ½³×
  000008e0h: 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C ; |||||||Lëÿ½ó×|||
  000008f0h: 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lëÿ½ó×||||||
  00000900h: 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB ; |Lëÿ½³×|||||||Lë
  00000910h: FF BD F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 ; ÿ½ó—|||||||Lëÿ½ó
  00000920h: D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C 7C ; ×|||||||Lëÿ½ó×||
  00000930h: 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C 7C ; |||||Lëÿ½³×|||||
  00000940h: 7C 7C 4C EB FF BD 63 97 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lëÿ½c—|||||||L
  00000950h: EB FF BD B3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD ; ëÿ½³—|||||||Lëÿ½
  00000960h: F3 97 7C 7C 7C 7C 7C 7C 7C 4C EB FF BD F3 D7 7C ; ó—|||||||Lëÿ½ó×|
  00000970h: 7C 7C 7C 7C 7C 7C 4C EB FF BD B3 D7 7C 7C 7C 7C ; ||||||Lëÿ½³×||||
  00000980h: 7C 7C 7C 4C EB FF BD F3 97 7C 7C 7C 7C 7C 7C 7C ; |||Lëÿ½ó—|||||||
  00000990h: 4C EB FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C EB FF ; Lëÿ½³×|||||||Lëÿ
  000009a0h: BD F3 F7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ó÷|||||||Lÿÿ½ó×
  000009b0h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 F7 7C 7C 7C ; |||||||Lÿÿ½ó÷|||
  000009c0h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  000009d0h: 7C 4C FF FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½³×|||||||Lÿ
  000009e0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  000009f0h: F7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C ; ÷|||||||Lÿÿ½ó×||
  00000a00h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000a10h: 7C 7C 4C FF FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½³×|||||||L
  00000a20h: FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½ó×|||||||Lÿÿ½
  00000a30h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD E3 D7 7C ; ó×|||||||Lÿÿ½ã×|
  00000a40h: 7C 7C 7C 7C 7C 7C 4C FF FF BD B3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½³×||||
  00000a50h: 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½ó×|||||||
  00000a60h: 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ó×|||||||Lÿÿ
  00000a70h: BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½³×|||||||Lÿÿ½ó×
  00000a80h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000a90h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000aa0h: 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½ó×|||||||Lÿ
  00000ab0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000ac0h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C ; ×|||||||Lÿÿ½ó×||
  00000ad0h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000ae0h: 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½ó×|||||||L
  00000af0h: FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½ó×|||||||Lÿÿ½
  00000b00h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C ; ó×|||||||Lÿÿ½ó×|
  00000b10h: 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½ó×||||
  00000b20h: 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½ó×|||||||
  00000b30h: 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ó×|||||||Lÿÿ
  00000b40h: BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ã×|||||||Lÿÿ½ó×
  00000b50h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000b60h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000b70h: 7C 4C FF FF BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½ã×|||||||Lÿ
  00000b80h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000b90h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD B3 D7 7C 7C ; ×|||||||Lÿÿ½³×||
  00000ba0h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000bb0h: 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½ó×|||||||L
  00000bc0h: FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½ó×|||||||Lÿÿ½
  00000bd0h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD B3 D7 7C ; ó×|||||||Lÿÿ½³×|
  00000be0h: 7C 7C 7C 7C 7C 7C 4C FF FF BD E3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½ã×||||
  00000bf0h: 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½ó×|||||||
  00000c00h: 4C FF FF BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ã×|||||||Lÿÿ
  00000c10h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ó×|||||||Lÿÿ½ó×
  00000c20h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000c30h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000c40h: 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½ó×|||||||Lÿ
  00000c50h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000c60h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C ; ×|||||||Lÿÿ½ó×||
  00000c70h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000c80h: 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½ó×|||||||L
  00000c90h: FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½ó×|||||||Lÿÿ½
  00000ca0h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C ; ó×|||||||Lÿÿ½ó×|
  00000cb0h: 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½ó×||||
  00000cc0h: 7C 7C 7C 4C FF FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½³×|||||||
  00000cd0h: 4C FF FF BD E3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ã×|||||||Lÿÿ
  00000ce0h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ó×|||||||Lÿÿ½ó×
  00000cf0h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000d00h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000d10h: 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½ó×|||||||Lÿ
  00000d20h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000d30h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C ; ×|||||||Lÿÿ½ó×||
  00000d40h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000d50h: 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½ó×|||||||L
  00000d60h: FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½ó×|||||||Lÿÿ½
  00000d70h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C ; ó×|||||||Lÿÿ½ó×|
  00000d80h: 7C 7C 7C 7C 7C 7C 4C FF FF BD B3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½³×||||
  00000d90h: 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½ó×|||||||
  00000da0h: 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ó×|||||||Lÿÿ
  00000db0h: BD E3 F7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ã÷|||||||Lÿÿ½ó×
  00000dc0h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000dd0h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000de0h: 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½ó×|||||||Lÿ
  00000df0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000e00h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C ; ×|||||||Lÿÿ½ó×||
  00000e10h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000e20h: 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½ó×|||||||L
  00000e30h: FF FF BD D3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½Ó×|||||||Lÿÿ½
  00000e40h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C ; ó×|||||||Lÿÿ½ó×|
  00000e50h: 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½ó×||||
  00000e60h: 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½ó×|||||||
  00000e70h: 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ó×|||||||Lÿÿ
  00000e80h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ó×|||||||Lÿÿ½ó×
  00000e90h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000ea0h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000eb0h: 7C 4C FF FF BD B3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½³×|||||||Lÿ
  00000ec0h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000ed0h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C ; ×|||||||Lÿÿ½ó×||
  00000ee0h: 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C ; |||||Lÿÿ½ó×|||||
  00000ef0h: 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C ; ||Lÿÿ½ó×|||||||L
  00000f00h: FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD ; ÿÿ½ó×|||||||Lÿÿ½
  00000f10h: F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C ; ó×|||||||Lÿÿ½ó×|
  00000f20h: 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C ; ||||||Lÿÿ½ó×||||
  00000f30h: 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C ; |||Lÿÿ½ó×|||||||
  00000f40h: 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF ; Lÿÿ½ó×|||||||Lÿÿ
  00000f50h: BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 ; ½ó×|||||||Lÿÿ½ó×
  00000f60h: 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C ; |||||||Lÿÿ½ó×|||
  00000f70h: 7C 7C 7C 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C ; ||||Lÿÿ½ó×||||||
  00000f80h: 7C 4C FF FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF ; |Lÿÿ½ó×|||||||Lÿ
  00000f90h: FF BD F3 D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD F3 ; ÿ½ó×|||||||Lÿÿ½ó
  00000fa0h: D7 7C 7C 7C 7C 7C 7C 7C 4C FF FF BD E3 D7 7C 7C ; ×|||||||Lÿÿ½ã×||
  00000fb0h: 7C 7C 7C                                        ; |||
  </code></pre>
  <p>So,</p>
  <ol>
  <li><p>Is it an Audacity problem because it does not interpret DTX frames? What player would be able to play it else correctly?</p>
  </li>
  <li><p>Is my AMR file wrong?</p>
  </li>
  </ol>
  <p>Regards</p>