Series Shifters

Some phonemes have two orthographic consonants such as: /k/ for ក and គ, /kʰ/
for ខ and ឃ, /c/ for ច and ជ, /cʰ/ for ឆ and ឈ and so on; but some others do not
have a series counterpart. That is when series shifters are needed. Series shifters are
orthographic diacritics which change the series of the consonant they are attached
to. They could change the series of consonants from the first series to the second or
vice versa. MUUSIKATOAN (៉), a diacritic which changes the series of 6 consonants
(យ, រ, វ, ង, ញ, ម) from the second series to the first series; and TRIISAP (៊), and
conversely changes the series of four consonants (ស, ហ, ប, អ) from the first series
to the second series. Tables below show 44 consonants in both first and second
series including the orthographic consonants which are modified by the series
shifters. The phoneme equivalent to each consonant symbol is given. 

Consonants in Their Respective Series (a)

Consonants in Their Respective Series (b)