• Extra Voices for NVDA
• Commercial synthesizers
• Acapela TTS Voices for NVDA
• CereProc Voices
• Eloquence and Vocalizer Expressive Add-on for NVDA by Code Factory
• Eloquence and Vocalizer voices Add-on for NVDA for South Asia from Saksham
• Harpo Software voices
• Infovox4 from Acapela Group (Commercial)
• Vocalizer by Nuance
• Free synthesizers
• Hear 2 Read
• Microsoft Speech Platform
• Mongolian Female TTS
• NV Speech Player
• RHVoice
• Legacy voices
• Festival (Free)(Last known compatible version: NVDA 2019.2.1)
• Newfon (Free)(Last known compatible version: NVDA 2019.2.1)
• Svox Pico (Free)(Last known compatible version: NVDA 2019.2.1)