Initial consonant voicing

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Historical sound change
General
Metathesis
Dissimilation
Fortition
Lenition (weakening)
Sonorization (voicing)
Spirantization (assibilation)
Rhotacism (change of [z] to [r])
L-vocalization (change of [l] to [w])
Debuccalization (loss of place)
Elision (loss)
Apheresis (initial)
Syncope (medial)
Apocope (final)
Haplology (similar syllables)
Fusion
Cluster reduction
Compensatory lengthening
Epenthesis (addition)
Anaptyxis (vowel)
Excrescence (consonant)
Prosthesis (initial)
Paragoge (final)
Unpacking
Vowel breaking
Assimilation
Coarticulation
Palatalization (before front vowels)
Velarization (before back vowels)
Labialization (before rounded vowels)
Initial voicing (before a vowel)
Final devoicing (before silence)
Vowel harmony
Consonant harmony
Cheshirisation (trace remains)
Nasalization
Tonogenesis
Floating tone
Sandhi (boundary change)
Crasis (contraction)
Liaison, linking R
Consonant mutation
Tone sandhi
Hiatus

Initial consonant voicing refers to a process of historical sound change where voiceless consonants become voiced before a vowel.

For example, in modern German sagen is pronounced [za:gnĚŠ], but the spelling reflects older pronunciation with a voiceless fricative.

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