multiple channel audio bug.

[taku-o]

• converting multiple channel wav audio file, empty role channel will be created.
• CeVIOで生成した音声が複数チャネルからなっているため、と予想される。

[taku-o]

• bad iXML metadata
  • empty role name will be created.
    • trackName-1
    • (empty)

<BWFXML>
    <IXML_VERSION>1.27</IXML_VERSION>
    <TRACK_LIST>
        <TRACK_COUNT>1</TRACK_COUNT>
        <TRACK>
            <CHANNEL_INDEX>1</CHANNEL_INDEX>
            <INTERLEAVE_INDEX>1</INTERLEAVE_INDEX>
            <NAME>${trackName}</NAME>
        </TRACK>
    </TRACK_LIST>
</BWFXML>

• bad iXML metadata
  • suffix will be appended.
    • trackName-1
    • trackName-2

<BWFXML>
    <IXML_VERSION>1.27</IXML_VERSION>
    <TRACK_LIST>
        <TRACK_COUNT>2</TRACK_COUNT>
        <TRACK>
            <CHANNEL_INDEX>1</CHANNEL_INDEX>
            <INTERLEAVE_INDEX>1</INTERLEAVE_INDEX>
            <NAME>${trackName}</NAME>
        </TRACK>
        <TRACK>
            <CHANNEL_INDEX>2</CHANNEL_INDEX>
            <INTERLEAVE_INDEX>2</INTERLEAVE_INDEX>
            <NAME>${trackName}</NAME>
        </TRACK>
    </TRACK_LIST>
</BWFXML>

[taku-o]

• https://www.apple.com/final-cut-pro/docs/Audio_Roles.pdf
• correct way ?

<BWFXML>
    <IXML_VERSION>1.27</IXML_VERSION>
    <TRACK_LIST>
        <TRACK_COUNT>2</TRACK_COUNT>
        <TRACK>
            <CHANNEL_INDEX>1</CHANNEL_INDEX>
            <INTERLEAVE_INDEX>1</INTERLEAVE_INDEX>
            <NAME>${trackName}</NAME>
        </TRACK>
        <TRACK>
            <CHANNEL_INDEX>2</CHANNEL_INDEX>
            <INTERLEAVE_INDEX>2</INTERLEAVE_INDEX>
            <NAME>${trackName}</NAME>
        </TRACK>
    </TRACK_LIST>
</BWFXML>