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Audio2bip39: Generate a BIP39 mnemonic phrase from an audio recording.
This tool makes it easier for users to generate compatible BIP39 seed words using audio.
Audio2bip39 is available at https://audio2bip39.groestlcoin.org/
Features
• open source
• supports only 24 word phrases
Source code: https://github.com/Groestlcoin/audio2bip39