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Festival Speech Synthesis System vs iSpeech

iSpeech

8.5#1 in text-to-speech softwareFree plan
Free planAndroidiOSWebAPI
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What both publish

FactFestival Speech Synthesis SystemiSpeech
API accessYesAPI access requires an API key, with mobile development, mobile production, and web/general production key types.
Commercial useYesYes
Free planYesYes
HeadquartersEdinburgh, Scotland, United KingdomThe company lists Newark, New Jersey as headquarters and San Francisco as an additional office.
LanguagesThe site lists British and American English, Spanish, and Welsh text-to-speech, and says English is the most advanced.The homepage says the Speech API supports text-to-speech and speech recognition in more than 30 languages.
PlatformsThe download page requires a Unix-like environment and gives Linux, FreeBSD, OSX, and Cygwin under Windows as examples.web,ios,android,api

Festival Speech Synthesis System plans

  • Festival 2.4Free

iSpeech plans

  • Pay Per Use$50 a month
  • Pay Per Install$0.25 a month
  • HackerFree
  • BasicFree
  • Plus$2.95 a month
  • Premium$3.95 a month

Pick Festival Speech Synthesis System if…

You want what its maker publishes above — check its page for the details.

Pick iSpeech if…

iSpeech may suit people who need text-to-speech or transcription, as well as developers seeking API or SDK access. Its described education uses include mobile learning apps, spoken course materials, and pronunciation practice.

Charts they share