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Microsoft Azure AI Speech Alternative

Unreal Speech is up to 2x cheaper, has more realistic voices, and a simpler API, making it the best Microsoft Azure AI Speech alternative.

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Live Demo

Try our text-to-speech API. Click a button to generate random text:

Non-Fiction
Fiction
News
Blog
Conversation
0/250
Voice
Format
Normal
Speed
Filesize
0 kb
Text to speech API - Unreal Speech

Unreal Speech

Cost-effective, scalable Text-to-Speech API with realistic human-like AI voices.
Text to speech API - Microsoft Azure AI Speech

Microsoft Azure AI Speech

Enables your applications, tools, or devices to convert text into human-like synthesized speech.

Voice Quality

Unreal Speech Samples

Mean Opinion Score
Fiction
4.72
Non-Fiction
4.37
Conversation
3.91

Microsoft Azure AI Speech Samples

Mean Opinion Score
Fiction
3.69
Non-Fiction
3.13
Conversation
3.18
Mean Opinion Score (MOS) is a numerical measure that represents the perceived quality of audio samples, commonly used in evaluating text-to-speech systems. The score ranges from 1 to 5, with 1 indicating poor quality and 5 signifying excellent quality. These scores are derived from comprehensive, professionally-conducted evaluations, and are anonymized to ensure unbiased results.

Voice Quality - Conclusion

  • Unreal Speech offers superior voice quality across various content types, with its fiction narrative scoring highest at 4.72.
  • In contrast, Microsoft Azure AI Speech shows lower mean opinion scores in all categories, indicating a more robotic voice quality.
  • This suggests Unreal Speech provides a more human-like listening experience.

Features

Unreal Speech Features

Voice Cloning
Multi-lingual
Per-word Timestamps
Pitch Control
Speed Control
Phone Formats (e.g. pcm_mulaw)

Microsoft Azure AI Speech Features

Voice Cloning
Multi-lingual
Per-word Timestamps
Pitch Control
Speed Control
Phone Formats (e.g. pcm_mulaw)

Features - Conclusion

  • Unreal Speech and Microsoft Azure AI Speech both offer essential text-to-speech features such as per-word timestamps, pitch control, speed control, and compatibility with phone formats.
  • Microsoft Azure AI Speech offers voice cloning and multi-lingual support, making it more versatile for applications requiring a wide range of voices and languages.

Pricing & Plans

Unreal Speech Pricing

Free
$0/mo
250,000 characters
Basic
$49/mo
3M characters
Extra: $16 per 1M chars
Plus
$499/mo
42M characters
Extra: $12 per 1M chars
Pro
$1499/mo
150M characters
Extra: $10 per 1M chars
Enterprise
$4999/mo
625M characters
Extra: $8 per 1M chars

Microsoft Azure AI Speech Pricing

Free
$0/mo
5 hours of audio (~225K chars)
Pay As You Go
$15per
1M characters

Pricing & Plans - Conclusion

  • Unreal Speech offers a more cost-effective solution across its tiered plans compared to Microsoft Azure AI Speech with its Pay As You Go option.
  • At the high end, Unreal Speech's Enterprise plan provides 625M characters for $4999 per month, which translates to significantly more characters per dollar than Azure's Pay As You Go, which would cost $9375.
  • For large-scale deployments, Unreal Speech is around 2x cheaper than Microsoft Azure AI Speech, especially when considering the volume of characters offered at the top tier versus Azure's cost per million characters.

Customer Reviews

Unreal Speech Reviews

4.8 out of 5
Average of 10 ratings from leading review sites.
Customers appreciate Unreal Speech's Text-to-Speech API for its affordability, ease of setup, and generous free tier. They find the API to be a cost-effective solution compared to competitors, with clear documentation and responsive customer support. The API is praised for its natural-sounding voices and seamless integration into various projects. However, customers express a desire for more voice customization options, support for multiple languages and improvements in voice realism.
Affordability
Ease of setup
Voice quality
Documentation
Voice realism
Multilingual support
Customization

Microsoft Azure AI Speech Reviews

4.2 out of 5
Average of 88 ratings from leading review sites.
Customers appreciate Azure Text to Speech API for its ease of use, high-quality audio output, and seamless integration with other services. They find it particularly beneficial for accessibility and enhancing user experience across various applications. However, concerns about the cost and limited customization options are frequently mentioned. The API's multilingual support and continuous updates are praised, but some users desire improvements in voice naturalness and additional language options.
Ease of use
Integration
Accessibility
Audio quality
Multilingual support
Naturalness of voice
Cost
Customization

Compare Alternatives

Unreal Speech Alternatives

Unreal Speech vs. Amazon Polly
Unreal Speech vs. ElevenLabs
Unreal Speech vs. Play.ht
Unreal Speech vs. Google Cloud Text-to-Speech
Unreal Speech vs. OpenAI Text-to-Speech
Unreal Speech vs. Murf API
Unreal Speech vs. Neets.ai
Unreal Speech vs. IBM Watson
Unreal Speech vs. Resemble.AI
Unreal Speech vs. LOVO AI
Unreal Speech vs. Deepgram Aura

Microsoft Azure AI Speech Alternatives

Microsoft Azure AI Speech vs. Amazon Polly
Microsoft Azure AI Speech vs. ElevenLabs
Microsoft Azure AI Speech vs. Play.ht
Microsoft Azure AI Speech vs. Google Cloud Text-to-Speech
Microsoft Azure AI Speech vs. OpenAI Text-to-Speech
Microsoft Azure AI Speech vs. Murf API
Microsoft Azure AI Speech vs. Neets.ai
Microsoft Azure AI Speech vs. IBM Watson
Microsoft Azure AI Speech vs. Resemble.AI
Microsoft Azure AI Speech vs. LOVO AI
Microsoft Azure AI Speech vs. Deepgram Aura

Summary

  • Unreal Speech offers higher voice quality across all types of content, but lacks voice cloning and multilingual support.
  • Microsoft Azure AI Speech, while offering voice cloning and multilingual capabilities, scores lower in voice quality assessments.
  • Unreal Speech provides more generous free character limits and scales up to larger packages for enterprise needs, offering better value for high-volume users.

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Frequently Asked Questions

How easy is it to switch from Microsoft Azure AI Speech to Unreal Speech?
  • Very easy, it only takes a few minutes. We give you 250,000 free characters per month, so you can start using our simple text-to-speech API right away.
 What makes Unreal Speech stand out from Microsoft Azure AI Speech in terms of pricing?
  • Unreal Speech offers a more generous free tier with 250,000 characters per month, compared to Microsoft Azure AI Speech's 225,000 characters.
  • Moreover, Unreal Speech provides larger character limits in its paid plans, with its top-tier Enterprise plan offering 625M characters for $4999/mo, which is significantly higher than what's offered in Azure's scalable Pay As You Go model, thus catering to high-volume users more cost-effectively.
 Which service offers better voice quality for fiction content?
  • Unreal Speech has a higher Mean Opinion Score (MOS) of 4.72 for fiction, indicating superior voice quality for fiction content compared to Microsoft Azure AI Speech, which has a MOS of 3.69 for the same category.
  • This suggests that Unreal Speech provides more realistic and appealing voice outputs for fiction applications.
 How do the services compare in terms of support for phone formats?
  • Both services support phone formats, such as pcm_mulaw, indicating that they are well-equipped to integrate with telephony systems and provide voice services over phone lines.
  • This feature is essential for applications in IVR (Interactive Voice Response) systems, customer support, and other telephony-based services.
 Which service provides per-word timestamps, and why is this feature important?
  • Both Unreal Speech and Microsoft Azure AI Speech offer per-word timestamps, a critical feature for applications requiring precise synchronization between audio and text, such as closed captioning, karaoke applications, and detailed analytics for speech recognition accuracy.
  • This feature enhances the ability to match spoken words with their textual representation accurately.
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