📖 The AI Tool Bible

Audio

Voice cloning, music generation, speech-to-text.

51 tools

Why it matters

AI audio has split cleanly into three lanes: speech synthesis (TTS + voice cloning), music generation, and speech-to-text — each with a clear leader.

What's in here

Covers voice cloning and TTS (ElevenLabs, Resemble.ai, Murf), AI music generation (Suno, Udio), and speech-to-text (AssemblyAI, Whisper).

How to pick

Pick ElevenLabs for voice quality. Pick Suno or Udio for AI music. Pick AssemblyAI when you need diarisation and timestamps; pick Whisper when you can self-host and want zero cost.

Voicebox

Audio · Multi-model (Chatterbox, Qwen TTS, Whisper, etc.)
7.4

Open-source desktop voice studio for local cloning, dictation, and giving MCP agents a voice.

Free· Free and open source; optional $VOICEBOX token donationsvoice-cloningtext-to-speech

Azure AI Speech (Neural TTS)

Audio · Azure Neural TTS (plus HD and Azure OpenAI voices)
7.3

Microsoft's enterprise-grade neural text-to-speech with 100+ languages, custom brand voices, and SSML control.

Freemium· Free tier (0.5M chars/mo neural); pay-as-you-go per character thereaftertext-to-speechvoice-cloning

Dia

Audio · Dia-1.6B
7.3

Open-weights 1.6B text-to-dialogue model that generates ultra-realistic multi-speaker conversations in one pass.

Free· Free, open weights (Apache 2.0); hosted larger version waitlisteddialogue-generationvoice-cloning

WellSaid Labs

Audio · Proprietary WellSaid TTS (closed model)
7.3

Enterprise AI text-to-speech studio built on licensed voice-actor recordings, with a director-style editor for pacing and pronunciation.

Paid· Subscription plans (Maker/Team/Enterprise); free trial availablee-learning narrationcorporate training

LOVO AI

Audio · Proprietary (LOVO Pro V2 voices)
7.2

Text-to-speech and voice cloning platform with 500+ voices, an integrated video editor, and a developer API.

Freemium· 14-day free Pro trial, no credit card; paid subscription tierstext-to-speechvoice-cloning

Veritone Voice

Audio · Proprietary (Veritone aiWARE)
7.2

Enterprise-grade voice cloning and synthesis platform built for broadcasters, studios, and large media operations.

Enterprise· Contact sales / demo onlyvoice-cloningtext-to-speech

Vibe

Audio · OpenAI Whisper (via whisper.cpp)
7.2

Offline desktop transcription app powered by Whisper, with diarization, batch processing, and an HTTP API.

Free· Free and open-source (MIT)transcriptionsubtitles

AI Song Maker

Audio · Multi-model (ACE-Step, MusicGen, DiffRhythm, Riffusion)
7.1

Browser-based song generator that wraps multiple open music models behind a single freemium UI.

Freemium· Free: 4 songs/day anon, 20 credits/day signed-in; paid tier for moretext-to-songlyrics-generation

Stable Audio

Audio · Stable Audio 3.0 (Large/Medium/Small/Small SFX)
7.1

Stability AI's generative audio model family for music and sound effects, with open weights for the smaller variants.

Freemium· Free web app tier; API metered; enterprise licensing for Large modelmusic-generationsound-effects

Beatoven.ai

Audio · Maestro (proprietary)
7.0

Text-to-music generator that spits out royalty-free background tracks with a clean licensing story.

Freemium· Pay-per-track or subscription for download minutesbackground-musicsound-effects

Loudly

Audio · Proprietary Loudly AI
7.0

AI music generator with royalty-free output, stem splitting, and distribution to Spotify and friends.

Freemium· Free tier; paid plans on /music/pricingtext-to-musicroyalty-free background music

MockingBird

Audio · GE2E + Tacotron + HiFi-GAN/WaveRNN/Fre-GAN
7.0

Open-source Mandarin-first voice cloning that mimics a speaker from a 5-second sample.

Free· Free, open source (MIT)voice-cloningtext-to-speech

Remusic

Audio · Remusic V4 Pro (proprietary)
7.0

All-in-one AI music studio that bundles song generation, voice cloning, stem splitting, and karaoke tools.

Freemium· Free daily credits; Starter $49/yr, Basic $94/yr, Pro $249/yrtext-to-musicvoice-cloning

ZenMic

Audio
7.0

Text-to-podcast generator with multi-speaker AI voices and RSS publishing.

Freemium· Free 10 min trial; $19/mo or $99/yr (100 min/mo)text-to-podcastcontent-repurposing

iSpeech

Audio
7.0

Veteran cloud TTS and speech recognition API with broad SDK and language coverage.

Freemium· Free mobile SDK for non-revenue apps; ~$0.0001-$0.05 per word/transactiontext-to-speechspeech-recognition

Murf AI

Audio · Murf Gen2 / Murf Falcon
6.9

Studio-grade text-to-speech and real-time voice agents with 200+ voices across 35+ languages.

Freemium· Free Studio (10 min/mo); paid plans + API at ~$0.01/min (Falcon)text-to-speechvoice-cloning

Transgate

Audio · Multi-model speech-to-text
6.9

Pay-as-you-go AI transcription and translation with summaries, highlights, and chat over your audio.

Freemium· Free 20-minute trial; pay-as-you-go credit packstranscriptiontranslation

WhisperAPI

Audio · OpenAI Whisper
6.9

Hosted OpenAI Whisper transcription with a pay-as-you-go API and drop-in web dashboard.

Paid· Pay-as-you-go credits; $5 for 20 credits, down to ~$0.10/credit in bulkaudio-transcriptionvideo-subtitles

AInterview

Audio
6.8

AI host that interviews you and turns the conversation into a finished podcast.

Freemium· Free 10 min/mo; Premium $19/mo (2 hrs); pay-as-you-go $0.13-$0.20/minai-podcast-hostsolo-podcasting

Audify AI

Audio · OpenAI TTS (tts-1, tts-1-hd, gpt-4o-mini-tts)
6.8

Pay-as-you-go web wrapper around OpenAI's text-to-speech voices.

Freemium· BYO OpenAI key (free); or top up from $2 pay-per-usetext-to-speechvoiceover

CustomPod

Audio
6.8

Turns your chosen news sources, RSS feeds, and inboxes into a personalized daily AI podcast.

Freemium· Free tier (manual generation); Pro $4.99/mopersonal podcastnews briefing

EKHOS AI

Audio · Proprietary local models
6.8

Offline Windows transcription app with speaker diarization, GPU acceleration, and 98-language support.

Freemium· Free tier; Premium $9/motranscriptionspeaker-diarization

Ecrett Music

Audio
6.8

AI background-music generator that spits out royalty-free instrumental tracks by scene, mood, and genre.

Freemium· Free preview tier; Individual $4.99/mo annual ($7.99 monthly); Business $14.99/mo annual ($24.99 monthly)background-musicyoutube-soundtracks

Harmonai

Audio · Dance Diffusion / Stable Audio family
6.8

Open-source generative audio lab from Stability AI building diffusion models for music production.

Free· Free open-source models and code; no hosted product on this sitemusic-generationsound-design