Aleatorika
Voice generationAI practice companion that turns practice sessions into visible progress
Audio & Voice
2 toolsAudio and voice AI tools turn speech into text and text into spoken narration, and some also clean up podcast recordings. The category has two subcategories: speech to text and voice generation. Check supported languages and accents, speaker labeling, and whether the output can be used commercially.
Tools
What these tools do
Speech-to-text tools convert recordings into searchable text, often labeling speakers and supporting upload or live recording. Voice generation tools read a script aloud with adjustable pace and emphasis, sometimes through an API so other software can call them. Some products also clean up recordings by removing noise and filler words. The two directions solve opposite problems, so decide whether you start from audio or from text.
How to choose
Test with your own material. For transcription, use a recording with the accents, background noise and terminology you normally face, then count the corrections needed. For voices, listen to a longer passage, not just a short demo, and check pronunciation of names and terms. Confirm which languages and dialects are supported, what file formats and lengths are accepted, and whether you need mobile, desktop or API access.
What to check before committing
Recordings often contain personal or confidential speech, so check how audio is stored, who can access it and whether it can be deleted. Make sure everyone recorded has agreed to it. For generated voices, read the terms on commercial use and any rules about imitating real people. Look at plan limits measured in minutes or characters, and at export formats for transcripts and audio files.
Frequently asked questions
How accurate is AI transcription?
Accuracy varies with audio quality, accents, overlapping speakers and specialist vocabulary. Test with a representative recording and plan to proofread any transcript that will be published or used as a record.
Can I use AI voices in commercial projects?
Often, but terms differ by provider and plan. Read the licence for commercial use, attribution and restrictions on imitating real voices, and keep the terms that applied when you generated the audio.
Do I need consent to transcribe a recording?
Usually you need agreement from people recorded, and rules differ by country. Tell participants, obtain consent where required and handle the resulting files as you would any personal data.