From what I gather, you seem to be asking if the last vowel is a diphthong. Ideally, it should not be, so the mouth retains one shape throughout the sound. The whole standard pronunciation of 'viingge' consists of the following phonetic segments:

- a voiced labiodental fricative
- a close front unrounded vowel, lengthened
- a voiced velar nasal, lengthened
- a close-mid central unrounded vowel, short. Note that the audio example is errouneously a diphthong.