Audio: play button to hear pronunciation of all headwords

[bdhrs]

This is frequently requested by dictionary users, a play button to hear the pronunciation of the Pāḷi headword.

The most obvious solution is to record audio with a Sri Lankan or Indian who has excellent pronunciation.

There are also a few technological solutions

1. Google TTS has good Kannada voices which can work.
2. ElevenLabs sound good but the pronounciation is characteristically Hindi, which comes with a number of problems for Pāḷi.
3. Amazon Polly isn't great
4. Resemble
5. Bhashini handles massive bulk TTS within India

UPDATE: https://www.bhashini.ai/ has kindly offered an API key, and their voices are excellent for Pāḷi and Sanskrit

Checklist

• Make Bhashini API interface
• Script to iterate through all unique lemma_clean
• Generate male and female voices
• Populate database with mp3 blobs
• Make an API endpoint in the webapp to serve audio
• Make a JS function to fetch and play audio
• HTML CSS JS for Webapp
• HTML CSS JS for GoldenDict
• Delete blank files before making database
• Trim excess silence before making database
• Change local server address to https://www.dpdict.net before release
• Test
• Integrate into monthly build process
• Update Docs