These lines were replaced within the game.dat151.rel file. Note that you will need the Codewalker's RPF Explorer to edit this file:

<Item type="PedVoiceGroup" ntOffset="325718">
   <Name>hash_0D7098EF</Name>
   <Unk00 value="0x70030100" />
   <Unk01 value="94" />
   <Unk02 value="57" />
   <Unk03 value="245" />
   <Full>
    <Item>
     <Name>chef</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
   </Full>
   <Mini />
   <UnkItems />
   <Unk07 value="0" />
  </Item>

~ I replaced the translator's voice with the name chef (Don't include this line in manual edits)

<Item type="PedVoiceGroup" ntOffset="325992">
   <Name>hash_F895D045</Name>
   <Unk00 value="0x70030100" />
   <Unk01 value="94" />
   <Unk02 value="57" />
   <Unk03 value="245" />
   <Full>
    <Item>
     <Name>a_m_m_golfer_01_white_full_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
   </Full>
   <Mini>
    <Item>
     <Name>a_m_m_genericmale_01_white_mini_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>a_m_m_genericmale_01_white_mini_02</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>a_m_m_genericmale_01_white_mini_03</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>a_m_m_genericmale_01_white_mini_04</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>g_m_y_armgoon_02_white_armenian_mini_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>g_m_y_armgoon_02_white_armenian_mini_02</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>a_m_m_golfer_01_white_mini_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>s_m_m_ciasec_01_white_mini_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>s_m_m_ciasec_01_white_mini_02</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>s_m_m_genericpostworker_01_white_mini_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>s_m_m_genericpostworker_01_white_mini_02</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>g_m_m_armlieut_01_white_armenian_mini_01</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
    <Item>
     <Name>g_m_m_armlieut_01_white_armenian_mini_02</Name>
     <Unk1 value="0" />
     <Unk2 value="0" />
    </Item>
   </Mini>
   <UnkItems />
   <Unk07 value="0" />
  </Item>

~ I replaced the businessman's voice to use these lines for my Italian Mafia Addon. I added them into this for compatibility purposes. Does not affect gameplay. (Don't include this line in the manual edits)