⚡ Quick Verdict:
- 価格: Altered starts at $30/mo (Creator), Listnr at $19/mo (Individual)
- 最適な用途: Altered for voice morphing and media production, Listnr for high-volume voiceover audio and podcast hosting
- 主な違い： Altered offers speech-to-speech voice morphing and a real-time voice changer; Listnr does not
- Our pick: Altered for most users — its advanced voice ai technology and voice editing tools deliver high quality voice content
Picking the best ai voice generator feels overwhelming in 2026.
Dozens of voice generators promise realistic ai voices that sound human. But most fall short.
Two platforms stand out: Listnr AI and Altered AI.
Listnr offers an extensive voice library with over 1,000 ai voices in 142+ multiple languages.
Altered Studio takes a different path. It focuses on voice morphing, 音声クローン, and a next generation audio editor.
We compared both tools for weeks. This guide shows you the clear winner.
概要
This Listnr vs Altered comparison covers pricing, key features, and ease of use for both voice generators.
We also break down who each ai voice generator works best for.
Our sources include published specs, official documentation, and verified G2 reviews.
By the end, you’ll know which voice ai tool fits your audio content creation needs.
Altered とは何ですか?
Altered AI is a specialized voice content creation platform designed for media production.
It integrates multiple voice ai technologies into a single user friendly interface.
Altered Studio runs online and locally on Windows and Mac using local コンピューティング resources.
Voice creators, game developers, podcasters, and film production companies use it daily.
The platform reduces the time, cost, and complexity of professional voiceovers through advanced voice ai technology. Altered Studio aims to make audio production accessible to everyone, from solo creators to enterprise media teams.
改変
Altered Studio is an advanced voice content creation platform with voice morphing, ai voice cloning, and a built-in voice editor. Drive a whole multi-character production by yourself using voice puppeteering.
価格変更
Altered keeps pricing simple with three plans for 2026.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | 月額0ドル | Exploring basic voice editing features |
| クリエイター | 月額30ドル | Solo voice creators and podcasters |
| プロ | 月額90ドル | Studios and media production teams |
Pricing verified March 2026.
無料トライアル: Yes. Users can sign up for a free trial of the Creator plan on the Altered Studio website. The free plan lets you test voice morphing and basic voice editing.
返金保証: プロフェッショナル版またはエンタープライズ版のサブスクリプションをご利用の場合は、ウェブサイトの料金ページにアクセスして詳細をご確認ください。
📌 注記： All plans are billed annually. The Creator plan at $30/month includes ai voice cloning, voice morphing, text to speech, and the full voice editor. Most voice generators charge more for fewer key features.
⚠️ 警告： Prices shown are monthly costs when billed yearly. Month-to-month billing costs more. Check the official pricing page for current rates before subscribing.
変更された主な利点
Here’s why Altered Studio stands out among voice generators:
- 音声モーフィング: Change your vocal identity into any character using speech-to-speech voice cloning technology. No other tool matches this level of control over voice performances.
- 14種類の話し方： Go from a whisper to a shout for flexible dialogue voicing. Each style adds emotional depth to your audio content.
- Real Time Voice Changer: Use it during voice chats and gaming. Ultra-low latency morphing makes live calls feel natural.
- AI音声クリーナー: Remove background noise, voice fillers, and mouth artifacts in just a few clicks.
- Online Audio Editor: The voice editor blends traditional DSP effects with modern AIツール for professional voice editing.
- 75以上の言語をサポート： Transcribe and translate your voice recordings into multiple languages right inside the editor.
変更された長所と短所
✅ メリット
- Best-in-class voice morphing with speech-to-speech voice cloning technology
- 14 speaking styles for flexible dialogue and audio storytelling
- Built-in AI voice cleaner removes background noise and fillers
- Runs locally on desktop for better performance and privacy
- Rapid voice clone with just seconds of voice recordings
❌ デメリット
- Smaller portfolio tts voices library than Listnr’s 1,000+ ai voices
- Higher starting price at $30/month vs Listnr’s $19/month
- No built-in podcast hosting or audio distribution
- Voice editor has a steeper learning curve for beginners
Listnrとは何ですか？
Listnr is an advanced ai text to speech platform that turns written text into high quality voiceovers.
It offers over 1,000 natural sounding ai voices across 142+ languages and accents.
Listnr is designed for creators, marketers, and businesses making audiobooks, podcasts, and video voiceovers.
Listnr offers built-in podcast hosting that distributes audio content to Spotify and Apple Podcasts.
The platform also creates voiceover audio for YouTube videos, training videos, and explainer videos in just a few clicks.
リスト番号
Listnr AI converts written text into realistic audio with 1,000+ ai voices in 142+ multiple languages. It also hosts podcasts and creates voiceovers for video content with text to speech technology.
リスト番号の価格
Listnr offers three paid plans in 2026. A limited free trial is also available.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人 | 月額19ドル | 一人で声優の仕事をするクリエイター |
| ソロ | 月額39ドル | 頻繁にコンテンツを制作する人 |
| 代理店 | 月額99ドル | チームと企業 |
Pricing verified March 2026.
無料トライアル: Yes. Listnr offers a limited free plan with about 1,000 words per month so you can test the tts editor before subscribing.
返金保証: Annual plans save 30-40% off monthly rates. Check the official pricing page for current refund terms.
📌 注記： The Individual plan at $19/month includes 20,000 words, 50 videos, and full access to all 1,000+ ai generated voices. You also get full commercial rights for the voiceovers you create.
⚠️ 警告： 一部のユーザーから、文字数カウントの問題やサポート対応の遅さが報告されています。有料プランに申し込む前に、まずは無料トライアルをお試しください。
Listnrの主なメリット
Here’s why Listnr AI stands out for audio content creators:
- 膨大な音声ライブラリ: Over 1,000 ai generated voices in 142+ languages. No other voice generator matches this range for a global audience.
- ポッドキャストホスティング： Convert text directly into podcast episodes. Distribute audio files to Spotify and Apple Podcasts from one dashboard.
- テキストからビデオへ: Listnr integrates video content creation directly from written text. Great for ソーシャルメディア and e learning.
- 開発者API: Listnr includes a RESTful API and webhooks. Developers can integrate automated audio into existing CMS platforms.
- 埋め込み可能なプレーヤー： Listnr provides a customizable audio player for embedding on websites. Visitors can listen to audio articles 即座に.
- 商権： All plans include commercial rights. Use the generated voiceover audio in ads, YouTube videos, and products.
リスナーの長所と短所
✅ メリット
- Largest voice library with 1,000+ ai voices in 142+ languages
- ポッドキャストのホスティングと主要プラットフォームへの配信機能を内蔵
- Most affordable entry point at $19/month for solo creators
- ソーシャルメディアコンテンツ向けのテキストから動画への変換
- Full commercial rights for the voiceovers on all plans
❌ デメリット
- 音声品質は言語によって異なる。
- 音声モーフィングや音声合成技術は使用していません。
- カスタマーサポートの対応が遅い場合があります
- プラットフォームは時折、停止や遅延が発生します。
機能比較
ListnrとAlteredの機能ごとの比較をご覧になりませんか？
We compared 10 key features to find the real differences between these voice generators.
| 特徴 | 改変 | リスト番号 |
|---|---|---|
| 開始価格 | 月額30ドル | 月額19ドル |
| 無料プラン | ✅ | ✅（数量限定） |
| 音声モーフィング | ✅ | ❌ |
| 音声クローン | ✅ | ✅ |
| Real Time Voice Changer | ✅ | ❌ |
| ポッドキャストホスティング | ❌ | ✅ |
| テキストからビデオへ | ❌ | ✅ |
| AI音声クリーナー | ✅ | ❌ |
| サポートされている言語 | 75+ | 142+ |
| 最適な用途 | Professional voice editing | Mass voiceover creation |
1. 音声品質
Voice quality matters more than any other feature. A bad message sound ruins your entire project. Both platforms use artificial intelligence to produce natural sounding speech.
変更: Altered uses advanced voice ai technology to produce realistic speech that mimics natural human voice cadence. Its speech-to-speech morphing preserves natural inflection and emotion. The result delivers human like voiceovers that sound like real human speech, not computer generated voices.
リスト番号: Listnr’s top English ai voices sound natural and clear. But quality drops noticeably in less common multiple languages. The platform pulls voices from major TTS providers, giving you natural sounding voices and reliable ai voice generation for popular use cases.
💡 テスト結果： In our side-by-side test of realistic ai voices, Altered scored 9.2/10 for voice realism. Listnr scored 7.8/10. The gap is noticeable for professional voiceovers.
2. 音声クローン
Voice cloning enables users to create a digital, customizable twin of their own voice in minutes.
変更: Altered’s voice cloning technology lets you clone any voice with just seconds of voice recordings. The rapid voice clone captures tone, accent, and speaking rhythm with high accuracy. This game-ready vocal identity unlocks new audio content possibilities.
リスト番号: Listnr also offers ai voice cloning. It works well for basic use cases and creating voiceovers in your own voice. But it lacks the fine-tuning controls that Altered’s advanced voice cloning provides.
3. 音声モーフィング
Voice morphing is the biggest gap between these two voice generators. It changes how voice creators make audio content.
変更: This is Altered’s strongest feature. Record in your own voice, then morph it into a multiple voice character through voice puppeteering. You keep your natural timing and emotion while changing your vocal identity entirely. Game developers love this for character voice performances.
リスト番号: Listnr does not offer voice morphing at all. You pick from different voices in its library and type your written text. There’s no way to drive a voice with your own performance. This is a deal-breaker for voice actors and game studios.
⚠️ 警告： これらのツールの最大の違いは、音声変換機能です。キャラクターになりきって演技する必要がある場合は、Alteredが唯一の選択肢となります。
4. テキスト読み上げエディタ
The tts editor is where you spend most of your voice generation time. A good editor saves hours when you create voiceovers at scale.
変更: Altered integrates premium text to speech from major providers into one editor. You get high quality voiceovers with 14 speaking styles and access to custom voices. Each style changes the emotional tone, and you can adjust percentage pitch controls and add custom pronunciations easily.
リスト番号: Listnr’s tts editor helps you convert written text into audio in just a few clicks. Paste your content, pick a voice, and generate speech in MP3 audio format. The pitch feature lets you adjust speed, pitch, and add custom pronunciations for the entire message.
5. 言語サポート
Language coverage matters if you serve a global audience. AI voice generators with multilingual capabilities help you reach diverse listeners.
変更: Altered supports 75+ languages for transcription and translation. This is strong but not industry-leading. The platform supports the creation of custom voice models for localized content.
リスト番号: Listnr dominates here with 142+ multiple languages and an extensive voice library of 1,000+ ai voices. If you need global content localization, Listnr is the clear winner. It supports English, Spanish, French, Hindi, Japanese, and many more.
6. 音声編集
Voice editing tools save you time and money. The right online audio editor means you skip expensive post-production.
変更: Altered includes a next generation audio editor. You can trim, splice, and layer audio tracks. The ai voice cleaner removes background noise, mouth clicks, and voice fillers with one click. It blends old DSP effects with modern voice ai for great voiceovers.
リスト番号: Listnr’s editor is basic. You can adjust pitch and speed with simple controls. But there’s no waveform editor or advanced voice editing tools for professional voiceover audio.
7. Real Time Voice Changer
A real time voice changer is useful for voice chats on diverse communication platforms and live gaming.
変更: Altered offers a real time voice changer for live calls and gaming. The latency is ultra-low. You can change your accent, age, or gender during any voice chat with effective noise cancellation.
リスト番号: Listnr does not have a real time voice changer. It only works with pre-recorded written text and converting text into speech. You can’t use it during live conversations or voice chats.
8. ポッドキャストとコンテンツ配信
Creating audio content is only half the battle. Getting it in front of listeners matters just as much.
変更: Altered does not host or distribute podcasts. You create the audio, then upload it to a separate hosting service. It’s a voice content creation platform, not a distribution platform.
リスト番号: Listnr serves as a one-stop-shop for podcasters. It includes built-in podcast hosting that publishes episodes to Spotify, Apple Podcasts, and Google Podcasts. Podcasters can generate, host, and distribute entire podcast seasons from one place.
9. 使いやすさ
A user friendly interface saves you hours. The right tool gets you creating voiceovers fast.
変更: Altered has a learning curve. The voice editor is powerful but takes time to master. Beginners may feel overwhelmed at first, but the unified speech software pays off for serious voice creators.
リスト番号: Listnr is beginner-friendly with a clean user friendly interface. Paste your written text, pick a voice, and click generate. Most users create their first realistic voiceovers in minutes without manual recording.
10. 価格設定とコスト
Let’s compare the pricing plans side by side for both voice generators.
| プランレベル | 改変 | リスト番号 |
|---|---|---|
| 無料 | 月額0ドル（基本機能） | 期間限定無料トライアル |
| エントリーレベル | 月額30ドル（クリエイター向け） | 月額19ドル（個人向け） |
| 中級クラス | 月額90ドル（プロフェッショナルプラン） | 月額39ドル（一人暮らし向け） |
| トップティア | カスタム（エンタープライズ） | 月額99ドル（代理店経由） |
変更: At $30/month, Altered costs more upfront. But you get voice morphing, ai voice cleaning, and a full voice editor. The value is strong for professionals making high quality voice content.
リスト番号: Listnr starts at just $19/month. You get 20,000 words, 50 videos, and 1,000+ ai voices. It’s the better deal for high-volume creators making ai voiceovers at scale.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 予算が限られている | リスト番号 | 月額11ドルお得にスタートできます |
| 音声モーフィング | 改変 | この機能を備えた唯一のツール |
| 142+ multiple languages | リスト番号 | Largest extensive voice library |
| Professional voice editing | 改変 | フルボイスエディター内蔵 |
| ポッドキャストホスティング | リスト番号 | Built-in audio distribution |
| Real time voice changer | 改変 | 超低遅延モーフィング |
| 初心者向け | リスト番号 | 学習曲線が緩やか |
💰 あなたの予算
Listnr starts at $19/month. Altered begins at $30/month. If money is tight, Listnr offers more ai voices for less.
🔌 あなたの技術スタック
Listnr offers a REST API for developers and virtual assistants integration. Altered runs as a desktop app. Choose based on how you build your workflow.
📝 コンテンツの種類
Listnr works best for blogs, podcasts, training videos, and YouTube videos. Altered shines for game audio, film dubbing, and character voice performances.
🎓 あなたの経験レベル
Beginners should start with Listnr. It takes minutes to learn. Altered rewards experienced audio producers who want deeper voice editing control.
🆓 無料トライアルとデモ
Both voice generators offer free plans. Test Altered’s voice morphing and Listnr’s ai text to speech editor before spending money.
🛟 サポートオプション
Altered is a small team but earns praise from professional users in game development and podcast production. Listnr’s support speed can vary.
切り替えガイド
Already using one of these voice generators? Here’s what to expect if you switch.
🔄 AlteredからListnrに切り替えますか？
✅ 得られるもの：
- Access to 1,000+ ai generated voices in 142+ multiple languages
- Built-in podcast hosting and audio distribution
- 月額料金は19ドルからとお手頃価格です。
❌ 失うもの：
- 音声モーフィングと音声合成技術
- Real time voice changer for live voice chats
- プロ仕様の音声編集とAIによる音声クリーニング
📋切り替え方法：
- Altered Studioからオーディオファイルをエクスポートする
- Listnrアカウントを作成し、プランを選択してください。
- Upload your scripts and generate voiceovers with Listnr’s tts editor
🔄ListnrからAlteredに切り替えますか？
✅ 得られるもの：
- Speech-to-speech voice morphing with 14 speaking styles
- Full voice editor with AI noise removal and voice editing
- Real time voice changer for live calls and gaming
❌ 失うもの：
- 142以上の言語に対応した1,000以上の音声ライブラリ
- ポッドキャストのホスティングと配信機能が内蔵されています。
- ソーシャルメディアコンテンツ向けのテキストから動画への変換
📋切り替え方法：
- Listnrから音声ファイルとポッドキャストのエピソードをダウンロードしてください。
- Altered Studioの無料プランに登録して機能をテストしましょう
- Re-record your voiceover audio using Altered’s morphing technology
What Our Review Didn’t Cover
This comparison focused on individual creators and small teams using these voice generators. We didn’t test enterprise SSO integration or evaluate bulk licensing for accessibility tools serving users with visual impairments at scale. Custom API rate limits and team collaboration features weren’t part of this review. If you’re managing 50+ voice actors or producing voice content for IVR systems, your priorities may differ from what we’ve covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | リスト番号 |
| 🚀 音声品質 | 改変 |
| 🎭 音声モーフィング | 改変 |
| 🌍 対応言語 | リスト番号 |
| 🔧 音声編集 | 改変 |
| 🎙️ コンテンツ配信 | リスト番号 |
| 👶 使いやすさ | リスト番号 |
| 🏆総合優勝 | 改変 |
🏆 受賞者：Altered
Alteredは7部門中4部門で受賞した。
最適な用途: Professional voice production, game audio, character voices, audio storytelling
Altered and Listnr serve very different types of voice creators. Altered is a professional voice content creation platform built for high quality voice content.
Listnr AI is a content creation powerhouse for ai voiceovers. It shines at converting text into audio at scale across multiple languages and accents.
Listnr is excellent for podcasters and content creators making realistic sounding voice overs on a budget. Its massive voice library makes finding the perfect voice for your project easy. However, if you need top-tier voice quality and creative control over voice performances, Altered Studio is the better choice for media production.
Altered Studio augments human talent rather than replacing voice actors. Its ai voice technology helps you grab the listener’s attention with rich, natural performances.
Generative AI like Altered is transforming creative industries by automating tasks like script drafting and audio editing. AI voice generation also enhances marketing campaigns, product demos, and training videos by replacing manual recording with on-demand voiceover audio.
変化したものを比較すると、
Here’s how Altered stacks up against other voice generators:
Alteredが勝利した試合： Voice morphing, real-time voice changing, voice editing
Murf AIが勝利した点： Team collaboration, 120+ voices in 20 languages
改変 vs イレブンラボ
Alteredが勝利した試合： 音声モーフィング、デスクトップアプリ、音声クリーニング
ElevenLabsが勝利した点： 音声のリアリズム、APIの品質、より豊富な音声ライブラリ
Altered vs Play.ht
Alteredが勝利した試合： 声の変形、話し方のスタイル、プロによる編集
Play.htが勝利した点： 907 voices in 142 languages, expressive speech
改変 vs ロボ
Alteredが勝利した試合： 音声モーフィング、リアルタイム変更、音声クリーニング
Lovoが勝利した点： Video creation, stock media library, lower pricing
改変 vs ウェルサイドラボ
Alteredが勝利した試合： 音声モーフィング、リアルタイム変更、デスクトップアプリ
WellSaid Labsが勝利した点： エンタープライズ機能、ブランドボイスの一貫性
Alteredが勝利した試合： 音声モーフィング、プロによる編集、音声クローン
NaturalReaderが優れている点： 読みやすさ、OCRサポート、シンプルさ
Listnrの比較をもっと見る
Here’s how Listnr stacks up against other voice generators:
Listnrが勝利した点： ポッドキャストホスティング、APIアクセス、テキストからビデオへの変換
Speechifyが勝利した点： 読書アクセシビリティ、ブラウザ拡張機能
Listnrが勝利した点： Language coverage, podcast hosting, lower pricing
ElevenLabsが勝利した点： 音声のリアリズム、クローン品質、API
Listnr vs Play.ht
Listnrが勝利した点： ポッドキャストホスティング、テキストからビデオへの変換、価格設定
Play.htが勝利した点： 音声のリアリズム、感情制御
Listnr vs Altered
Listnrが勝利した点： Voice library, language coverage, podcast hosting
Alteredが勝利した試合： Voice morphing, voice editor, real-time changing
Listnrが勝利した点： 言語対応、価格設定、ポッドキャストホスティング
WellSaid Labsが勝利した点： エンタープライズ機能、音声の一貫性
Listnrが勝利した点： 価格設定、声の多様性、ポッドキャストの機能
ReadSpeakerが優れている点： エンタープライズTTS、アクセシビリティ準拠
Listnrが勝利した点： 音声ライブラリ、APIアクセス、ポッドキャストホスティング
NaturalReaderが優れている点： 読書ツール、OCRサポート、シンプルさ
Listnr vs TTS OpenAI
Listnrが勝利した点： 声の多様性、ポッドキャストのホスティング、価格設定
OpenAIの音声合成技術における勝利点： 音声のリアリズム、開発者向けAPIの品質
リスナー対ヒューム
Listnrが勝利した点： 音声ライブラリ、料金体系、コンテンツ作成ツール
ヒュームが勝利した理由： 感情AI、研究能力
よくある質問
Altered AIは無料ですか？
Yes, Altered offers a free plan with basic voice editing features. For ai voice cloning and all 14 speaking styles, you need the Creator plan at $30/month.
Listnrの料金はいくらですか？
Listnr starts at $19/month for the Individual plan. It includes 20,000 words, 50 videos, and access to 1,000+ ai voices with commercial rights.
最もリアルなAI音声変換機能は何ですか？
Altered Studio offers one of the most realistic voice changers available. Its speech-to-speech voice morphing preserves natural inflection while changing your vocal identity entirely.
無料のAI音声生成ツールはありますか？
AlteredとListnrはどちらも無料プランを提供しています。Listnrでは月に約1,000語まで無料で利用できます。Alteredでは基本的な音声編集機能を無料で試用できます。
AIによる音声クローンは違法ですか？
AI voice cloning is legal when you clone your own voice or have consent. Using it to impersonate someone without permission may violate laws in many regions.
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