The extensive notes compare expressions from Ibn al-Jazarī, al-Sakhāwī and other specialists on where nasal resonance is heard versus where the underlying nūn or mīm is articulated. Nasal contribution can become prominent in ikhfāʾ and idghām, but that does not imply that every audible feature is a new written consonant.
In some statements the point of ghunnah is the more precise expression than the basic point of the letter. Practical takeaway: do not replace nasal resonance with a purely oral sound, but also do not forget nūn's and mīm's ordinary articulatory bases.
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Scholarly discussion of nasalization
Makhārij al-Ḥurūf — The Fifteen Articulation Points
The extensive notes compare expressions from Ibn al-Jazarī, al-Sakhāwī and other specialists on where nasal resonance is heard versus where the underlying nūn or mīm is articulated. Nasal contribution can become prominent in ikhfāʾ and idghām, but that does not imply that every audible feature is a new written consonant.
In some statements the point of ghunnah is the more precise expression than the basic point of the letter. Practical takeaway: do not replace nasal resonance with a purely oral sound, but also do not forget nūn's and mīm's ordinary articulatory bases.