What is the sound of ء in quran

Transliteration of Arabic Words and Names. Pronounce it with quick sound/fast ء

    مسلسل اهل و حبايب ـ الحلقة 5
  1. g
  2. It does not have any exact matching sound in English
  3. Sign in Quran is ء
  4. Sign in Quran is ء b
  5. ق q, a deep guttural k sound