

⚡ 簡単な評価:
- 価格: Play ht starts at $31.20/month after its free tier. Altered starts at $30/month.
- 最適な用途: Play ht suits written content turned into audio at scale. Altered suits media production and voice editing.
- 主な違い: Play ht is a text to speech platform with AI voice agents. Altered is a voice content creation platform built around morphing recorded human talent.
- 私たちのおすすめ: Play ht for most people, because its extensive library of AI voices covers more use cases out of the box.

Both of these tools make AI voices. That is where the similarity stops.
Play ht starts with words on a page.
Altered starts with a recording of someone talking.
That single difference decides which one fits your work.
Here is how the two platforms compare on price, features, and output quality.
概要
This Play HT vs Altered comparison covers pricing, core features, and output quality.
We read the documentation and pricing pages for both platforms.
弊社のライター陣は、各サービスを実際に時間をかけて利用しました。
それらのメモは、以下の「チームが気づいたこと」のセクションに記載されています。
By the end you will know which tool fits your audio projects.
Play htとは何ですか?
Play ht is an AI voice generator that turns written content into speech.
You type, paste, or import text into an online studio.
The platform then returns natural sounding AI voices in seconds.
Its library holds over 600 AI voices across many languages.
People use it for audiobooks, podcasts, training videos, and IVR systems.
Voice cloning lets you build a model of your own voice.

Here is a walkthrough of the studio and how each feature behaves.

🏆 Winner: Play ht
Over 600 AI voices in one text to speech studio. Exports high quality audio files as MP3 or WAV. Free plan available before you pay.
プレイht価格設定
Play ht runs on a freemium model with four tiers.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | 月額0ドル | 音声の帰属テスト |
| クリエイター | 月額31.20ドル | ソロポッドキャスターおよびクリエイター |
| 無制限 | 月額49ドル | 大音量オーディオ生成 |
| プレミアム | カスタム/月 | Teams and enterprise volume |
Pricing verified September 2026.

無料トライアル: The free plan works as the trial. It caps character volume and asks for attribution on published audio.
返金保証: No published refund window. Cancel inside the billing page before renewal.
📌 注記: The Premium tier is quoted per account. It covers team seats, API access, and volume beyond the Unlimited plan.
⚠️ Pricing conflict: Some sources list the free tier at roughly 5,000 characters and the Creator plan near $39/month. Our verified figure is $31.20/month, and that is the number used in every table here. Check the billing page before you subscribe.
⚠️ 警告: Trustpilot reviewers rate Play ht “Average” at 3 out of 5. Recurring complaints cover charges after cancellation, plan changes made without notice, and slow support replies. Cancel through the dashboard and keep the confirmation email.
Play htの主なメリット
Here is what makes Play ht worth a look:
- 豊富な蔵書: Over 600 AI generated voices sit in one picker. You can filter by gender, age, and different accents.
- 音声クローン: Upload a sample and the platform builds a model of the speaker’s voice. Cross language voice cloning carries that identity into other languages.
- Multi voice feature: Assign different voices to each line for dialogue and multi-speaker podcasts.
- Custom pronunciations: Save custom pronunciations for brand names and technical terms so specific words never drift.
- Publishing pipeline: It can generate an RSS feed from converted articles for Spotify or iTunes.
- 幅広い統合: WordPress plugin, browser extension, and API access connect it to an existing workflow.
- Voice agents: AI voice agents handle IVR systems and conversational assistants with scripted replies.

私たちのチームが気づいたこと
私たちの 作家 signed up for Play ht and spent several days inside the studio. Here is what stood out from that hands-on time:

Play ht の長所と短所
✅ メリット
- Over 600 AI voices covering many languages and accents
- Exports MP3 and WAV files for any editing program
- Batch processing suits high-volume audio content
- WordPress, browser extension, and API integrations
- 無料プランでは、料金を支払う前に試用できます。
❌ デメリット
- Billing complaints include charges after cancellation
- Support replies are slow according to Trustpilot reviewers
- Voice naturalness slips on complex technical terms
- Credit allowances have changed without notice
Altered とは何ですか?
Altered AIは、メディア制作向けに構築された音声コンテンツ作成プラットフォームです。
Altered Studioは、複数の音声AI技術を1つのアプリに統合しています。
You get a voice changer, premium text to speech, and voice cloning.
An AI voice cleaner strips background noise from voice recordings.
Podcasters, game publishers, and film companies are its core users.
The pitch is simple: keep the human performance, swap the vocal identity.

This walkthrough shows the editor and the voice morphing workflow.

Runner Up: Altered
An online audio editor for voice creators. Morph an existing take into a new professional voice. Free trial before you commit.
価格変更
Altered keeps its pricing to three tiers.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | 月額0ドル | Trying the voice changer |
| クリエイター | 月額30ドル | ソロの音声クリエイターとポッドキャスター |
| プロ | 月額90ドル | Studios and game production teams |
Pricing verified September 2026.

無料トライアル: Yes. You can sign up for a free trial of the Creator plan on the Altered Studio site.
返金保証: Not published. Enterprise buyers negotiate terms directly through the pricing page.
📌 注記: Professional and Enterprise buyers are pointed to the pricing page for a quote. Seat counts and render minutes drive the final figure.
⚠️ 警告: The $60 jump from Creator to Professional is steep for one person. Run the free trial against a real project first and check whether the Creator render limits actually block you.
変更された主な利点
Here is where Altered earns its keep:
- 音声モーフィング: Record once, then map that take onto a different character, age, or native accent. Your timing and voice inflections survive the swap.
- リアルタイム音声変換機能: Ultra-low latency morphing works during live voice chats and gaming sessions.
- 話し方: Emotive text to speech offers 14 speech styles, including whispering and shouting.
- AI音声クリーナー: Removes room tone and background noise from existing voiceovers.
- History editing: Track and revert to earlier versions of any audio project.
- Custom voice models: Build your own voice model, then transcribe and translate the same content into other languages.
- ユーザーフレンドリーなインターフェース: One app holds the changer, the editor, and the cloning tools without separate logins.

私たちのチームが気づいたこと
Our writer ran a set of voice recordings through Altered Studio over several sessions. Here is what stood out:

The clip below shows the same session in the editor.
変更された長所と短所
✅ メリット
- Keeps human timing and emotion in every morph
- Real time changer works during live calls and ゲーム
- 14 speaking styles cover whisper through shout
- Noise cleanup and editing sit in the same app
- Praised by game developers and podcast producers
❌ デメリット
- Morphing needs a recorded take to start from
- Smaller stock voice catalogue than Play ht
- Professional tier triples the Creator price
- No article-to-podcast RSS publishing
機能比較
Here is the side-by-side view across ten areas that matter to voice creators.
| 特徴 | プレイht | 改変 |
|---|---|---|
| 開始価格 | 月額31.20ドル | 月額30ドル |
| 無料プラン | ✅ | ✅ |
| ストックAI音声 | ✅ 600+ | ✅ Smaller catalogue |
| 音声クローン | ✅ | ✅ |
| リアルタイムボイスチェンジャー | ❌ | ✅ |
| AI音声クリーナー | ✅ | ✅ |
| IVR / Voice Agents | ✅ | ❌ |
| 話し方 | 限定 | ✅ 14 styles |
| RSS Podcast Publishing | ✅ | ❌ |
| 最適な用途 | Turning written content into audio | Reshaping recorded performances |
1. AI Voice Library & Realism
再生 ht: The catalogue runs past 600 AI voices. That breadth means you can audition ten different voices for one script in a minute. Realism holds well on everyday copy, though naturalness slips on dense technical terms.

変更: The stock portfolio TTS voices list is shorter. What you get instead is a set of voices capable of 14 speech styles, so one voice can whisper a line and shout the next.

2. Voice Cloning & Vocal Identity
再生 ht: Upload a clean sample and you get a reusable clone of your own voice. Cross language voice cloning then carries that identity into other languages without a second recording session.
変更: Its voice cloning technology is aimed at performance, not narration. A rapid voice clone captures a speaker’s voice, and the vocal identity is then driven by a real take rather than typed text.

3. Custom Voice Models & Training
再生 ht: Model creation is largely automatic. You feed audio, the service returns a voice, and tuning happens through pitch, speed, and custom pronunciation entries rather than retraining.
変更: Voice training is a first-class step. You can build custom voice models, transcribe the source audio, and translate that content for other markets from the same project.

4. Voice Changing & Morphing
再生 ht: The AI voice changer converts a recorded clip into another speaker. It runs as a file-based job, so you upload, wait, and download. There is no live mode.

変更: Voice morphing is the core product. The real time voice changer adds ultra-low latency output for live voice chats and gaming, with noise cancellation running alongside.

💡 プロのヒント: If you need live conversations altered mid-call, Play ht cannot do it. That single gap decides the choice for streamers and game studios.
5. Speech Generation & Editing
再生 ht: The speech generator is built for volume. Import text, split it by speaker with the multi voice feature, and generate audio for a whole script in one pass.

変更: Its online audio editor handles voice editing line by line. History editing lets you revert any take, which matters when a director changes their mind on a single word.

6. Audio Cleanup & Background Noise
再生 ht: The AI audio cleaner tidies uploaded recordings before conversion. It is a useful extra rather than the reason to buy, since most of your output starts as text anyway.

変更: The AI voice cleaner sits at the front of the workflow. Because the platform assumes you recorded in a spare room, removing background noise is treated as a normal first step.
7. Languages, Accents & Pronunciation
再生 ht: Multi-lingual speech covers a wide language spread with different accents inside each one. You can save custom pronunciations so brand names and specific words stay correct across every render.

変更: Translation runs off your transcript, which keeps the original pacing. Accent work leans on morphing, so a single actor can voice several characters with a convincing native accent.
8. Voice Agents & IVR Systems
再生 ht: AI voice agents automate phone menus and scripted replies. For a 仕事 running IVR systems, voice assistants, or conversational assistants, this is the clearest win in the whole comparison.

変更: No agent layer exists here. Altered Studio is aimed at media production, not at answering customer calls, so telephony teams should look elsewhere.
9. Integrations, Exports & Workflow
再生 ht: WordPress, a browser extension, and API access connect it to a publishing site. It also builds RSS feeds from converted articles and exports high quality audio files as WAV or MP3.
変更: The workflow ends at export into your own edit suite. That fits creative videos and audio storytelling, but there is no publishing pipeline attached.
10. 価格設定とコスト
The entry price is nearly identical. The ceiling is not.
| プラン | プレイht | 改変 |
|---|---|---|
| 無料 | 月額0ドル | 月額0ドル |
| クリエイター | 月額31.20ドル | 月額30ドル |
| 無制限 | 月額49ドル | — |
| プロ | — | 月額90ドル |
| プレミアム | カスタム/月 | — |
再生 ht: The $49 Unlimited tier is the sweet spot for anyone publishing weekly. It sits between the Creator plan and custom Premium quotes, so you can scale audio generation without a sales call.
変更: Creator at $30/month is the cheapest paid entry in this comparison. The gap to $90/month is wide though, and there is no middle tier to soften it.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| Articles turned into podcasts | プレイht | RSS feed publishing built in |
| ライブ音声変換 | 改変 | Only one with a real-time mode |
| The widest voice choice | プレイht | Over 600 stock voices |
| Emotional range in delivery | 改変 | 14種類の話し方 |
| Phone menus and voice agents | プレイht | Agent layer included |
| 最も安い有料入場券 | 改変 | $30/month vs $31.20/month |
💰 あなたの予算
The $1.20 gap at entry level is noise. What matters is the second step, where Play ht asks $49 and Altered asks $90.
🔌 あなたの技術スタック
Play ht plugs into WordPress and offers API access for developers. Altered expects you to export a file into an editor you already own.
🎬あなたのソース素材
Start with a script and Play ht is faster. Start with voice recordings and Altered keeps the performance you already captured.
🎓 あなたの経験レベル
Play ht is easier on day one because the workflow is paste and click. Altered rewards people who already think like audio 編集者.
🆓 無料トライアルとデモ
Both let you test before paying. Run the same 300 words through each and compare the sound with headphones on.
🛟 サポートオプション
Support is the weak spot for Play ht, with Trustpilot reviewers 報告 long waits. Altered has drawn better marks from professional users in game and podcast production.
🔒 データ and Consent
Cloning someone else’s voice without written permission is a legal risk in most markets. Keep a signed release on file for every voice you train.
切り替えガイド
Already paying for one of them? Here is what changes if you move.
🔄 Switching from Play ht to Altered?
✅ 得られるもの:
- Live morphing during calls, streams, and games
- 14 speaking styles for emotional range
- Version history on every audio project
❌ 失うもの:
- The 600-voice catalogue
- IVRシステム向けAI音声エージェント
- WordPress publishing and RSS feeds
📋切り替え方法:
- Download every finished MP3 and WAV from Play ht
- Start the free Creator trial on Altered Studio
- Record a fresh sample and train your voice model
🔄 Switching from Altered to Play ht?
✅ 得られるもの:
- An extensive voice library you can use without recording
- Article-to-podcast publishing with RSS
- API access and a WordPress plugin
❌ 失うもの:
- リアルタイムの音声変更
- Whisper-to-shout speaking styles
- History editing and revert points
📋切り替え方法:
- Export your finished takes out of Altered Studio
- Open a free Play ht account and test the voices
- Rebuild your scripts as text and set pronunciations
私たちのレビューで取り上げられなかったこと
This comparison looked at solo creators and small production teams. We did not test enterprise contracts, custom Premium quotes, or high-volume API throughput under load. Latency figures for the real-time changer come from published specs rather than our own measurements. If you are staffing a studio with dozens of seats, your priorities will differ from what we covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | 改変 |
| 🎙️ 音声ライブラリ | プレイht |
| 🧬 音声クローン | プレイht |
| ⚡ Real-Time Performance | 改変 |
| 🎭 Speech Styles | 改変 |
| 🌍 Languages & Accents | プレイht |
| 📞 Voice Agents & IVR | プレイht |
| 🔌 連携機能 | プレイht |
| 👶 使いやすさ | プレイht |
| 🏆総合優勝 | プレイht |
🏆 勝者: PLAY HT
Play ht wins 6 out of 9 categories.
最適な用途: Audiobooks, podcasts, e-learning modules, training videos, and IVR systems
These are two different tools wearing the same label. Play ht converts written content into speech at scale, and its 600-voice catalogue means most projects never need a microphone.
Altered works the other way around. It takes voice performances that already exist and reshapes them, which is why game studios and podcast producers like it.
Pick Altered if you record first and need live changing, emotional range, or noise cleanup. Pick Play ht if your work starts as a document and ends as audio content.
Play ht を比較すると、
Here is how Play ht holds up against the rest of the category:
ht vsをプレイ イレブンラボ
プレイしてhtの勝利を掴む: RSS publishing for articles, AI voice agents for phone systems, WordPress plugin
ElevenLabsが勝利した点: Emotional nuance, story-driven narration, dialogue pacing in long fiction
マーフAIと対戦するhtをプレイ
プレイしてhtの勝利を掴む: Batch processing volume, browser and API integrations, cross language cloning
Murf AIが勝利した点: Video sync tooling, e-learning module 建設業者, marketing voiceover templates
Play htとSpeechifyの比較
プレイしてhtの勝利を掴む: Commercial export rights, multi-speaker scripts, custom pronunciation control
Speechifyが勝利した点: Mobile reading apps, dyslexia-friendly playback, document scanning
ht vsをプレイ 説明
プレイしてhtの勝利を掴む: Stock voice range, text-first generation speed, telephony use cases
説明文が勝つ点: Transcript-based video editing, filler-word removal, screen recording
変化したものを比較すると、
And here is Altered against its closest rivals:
Altered vs ElevenLabs
Alteredが勝利した試合: Live call morphing, 14 speaking styles, noise cleanup inside the same app
ElevenLabsが勝利した点: Larger stock catalogue, audiobook-length consistency, developer community size
改変 vs 記述
Alteredが勝利した試合: Character morphing for games, real-time output, version history per take
説明文が勝つ点: Multitrack video timeline, team commenting, publishing to hosting platforms
改変 vs ポッドキャスト
Alteredが勝利した試合: Voice morphing depth, game and film production fit, emotive delivery control
Podcastleが勝利した点: Remote recording sessions, episode hosting, simpler pricing for hobbyists
よくある質問
Play HTは合法的なサービスですか?
Yes, it is a real company with a working product. Trustpilot rates it 3 out of 5, with billing and support complaints driving most of the negative reviews.
プレイHTの料金はいくらですか?
There is a free tier, then Creator at $31.20/month and Unlimited at $49/month. The Premium plan is quoted per account based on volume and team seats.
Altered AIは無料ですか?
There is a free plan at $0/month plus a free trial of the Creator tier. Paid plans start at $30/month and reach $90/month for studios.
Play HTはElevenLabsより優れていますか?
For publishing workflows, phone systems, and sheer voice count, yes. ElevenLabs still handles emotional nuance and story-driven narration better, so audiobook narrators often prefer it.
AIによる音声クローンは合法ですか?
Cloning your own voice is legal. Cloning someone else without written consent risks impersonation and publicity-rights claims, and rules vary by country. Always keep a signed release.













