Multilingual Text-to-Speech (TTS) Dataset for High-Fidelity Voice Synthesis

About Gradient Line

Build realistic, expressive, and natural-sounding synthetic voices with our high-quality Text-to-Speech (TTS) dataset, specifically designed to train and fine-tune modern neural TTS models. This multilingual speech dataset includes studio-quality voice recordings aligned with phonetically balanced scripts across diverse domains and demographic profiles.

Each dataset includes high-quality voice recordings paired with clean, phonetically rich transcripts to ensure clear pronunciation, smooth prosody, and natural pacing. Recorded by native speakers in controlled environments, these datasets reflect realistic speech dynamics essential for lifelike voice generation.

Whether you're building a commercial TTS system or fine-tuning speech synthesis models, our ready-to-use datasets help you accelerate development with reliable, diverse, and production-grade voice data.

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TTS Speech Datasets

German AI voice dataset for training multilingual TTS models
German (Germany)

German TTS Dataset for Speech Synthesis

Studio-quality German speech dataset featuring expressive recordings by native speakers.

45 Speech Hours
45 People
TTSLanguage Modelling
Czech audio dataset for neural TTS training
Czech (Czech Republic)

Czech TTS Dataset for Speech Synthesis

Studio-quality Czech speech dataset featuring expressive recordings by native speakers.

76 Speech Hours
76 People
TTSLanguage Modelling
Algerian Arabic TTS monologue speech dataset for text-to-speech model training
Arabic (Algeria)

Algerian Arabic TTS Dataset for Speech Synthesis

Studio-quality Algerian Arabic speech dataset featuring expressive recordings by native speakers.

30 Speech Hours
30 People
TTSLanguage Modelling
Studio-quality Egyptian Arabic speech dataset for TTS systems
Arabic (Egypt)

Egyptian Arabic TTS Dataset for Speech Synthesis

Studio-quality Egyptian Arabic speech dataset featuring expressive recordings by native speakers.

31 Speech Hours
31 People
TTSLanguage Modelling
Saudi Arabian Arabic monologue voice dataset for speech synthesis applications
Arabic (Saudi Arabia)

Saudi Arabian Arabic TTS Dataset for Speech Synthesis

Studio-quality Saudi Arabian Arabic speech dataset featuring expressive recordings by native speakers.

32 Speech Hours
32 People
TTSLanguage Modelling
Bahasa TTS dataset for AI voice generation
Bahasa (Indonesia)

Bahasa TTS Dataset for Speech Synthesis

Studio-quality Bahasa speech dataset featuring expressive recordings by native speakers.

33 Speech Hours
33 People
TTSLanguage Modelling
Indian Bengali studio-recorded speech data for building TTS models
Bengali (India)

Indian Bengali TTS Dataset for Speech Synthesis

Studio-quality Indian Bengali speech dataset featuring expressive recordings by native speakers.

34 Speech Hours
34 People
TTSLanguage Modelling
Native Danish speech dataset for training text-to-speech systems
Danish (Denmark)

Danish TTS Dataset for Speech Synthesis

Studio-quality Danish speech dataset featuring expressive recordings by native speakers.

35 Speech Hours
35 People
TTSLanguage Modelling
Dutch audio dataset for neural TTS training
Dutch (Netherlands)

Dutch TTS Dataset for Speech Synthesis

Studio-quality Dutch speech dataset featuring expressive recordings by native speakers.

36 Speech Hours
36 People
TTSLanguage Modelling
Expressive Australian English monologue dataset for voice synthesis
English (Australia)

Australian English TTS Dataset for Speech Synthesis

Studio-quality Australian English speech dataset featuring expressive recordings by native speakers.

37 Speech Hours
37 People
TTSLanguage Modelling
Clean Canadian English WAV audio dataset for TTS development
English (Canada)

Canadian English TTS Dataset for Speech Synthesis

Studio-quality Canadian English speech dataset featuring expressive recordings by native speakers.

38 Speech Hours
38 People
TTSLanguage Modelling
Professional Indian English speech corpus for text-to-speech AI
English (India)

Indian English TTS Dataset for Speech Synthesis

Studio-quality Indian English speech dataset featuring expressive recordings by native speakers.

39 Speech Hours
39 People
TTSLanguage Modelling
New Zealand English scripted speech dataset for TTS and language modeling
English (New Zealand)

New Zealand English TTS Dataset for Speech Synthesis

Studio-quality New Zealand English speech dataset featuring expressive recordings by native speakers.

40 Speech Hours
40 People
TTSLanguage Modelling
UK English dataset for voice assistant and TTS systems
English (UK)

UK English TTS Dataset for Speech Synthesis

Studio-quality UK English speech dataset featuring expressive recordings by native speakers.

41 Speech Hours
41 People
TTSLanguage Modelling
Long-form US English monologue dataset for speech generation
English (US)

US English TTS Dataset for Speech Synthesis

Studio-quality US English speech dataset featuring expressive recordings by native speakers.

42 Speech Hours
42 People
TTSLanguage Modelling
High-fidelity Finnish speech recordings for voice AI
Finnish (Finland)

Finnish TTS Dataset for Speech Synthesis

Studio-quality Finnish speech dataset featuring expressive recordings by native speakers.

43 Speech Hours
43 People
TTSLanguage Modelling
French speech data for TTS and prosody modeling
French (France)

French TTS Dataset for Speech Synthesis

Studio-quality French speech dataset featuring expressive recordings by native speakers.

44 Speech Hours
44 People
TTSLanguage Modelling
Gujarati voice dataset for custom TTS engine development
Gujarati (India)

Gujarati TTS Dataset for Speech Synthesis

Studio-quality Gujarati speech dataset featuring expressive recordings by native speakers.

46 Speech Hours
46 People
TTSLanguage Modelling
Phonetically rich Hindi dataset for speech synthesis research
Hindi (India)

Hindi TTS Dataset for Speech Synthesis

Studio-quality Hindi speech dataset featuring expressive recordings by native speakers.

47 Speech Hours
47 People
TTSLanguage Modelling
Italian India dataset for studio-grade speech AI
Italian (Italy)

Italian TTS Dataset for Speech Synthesis

Studio-quality Italian speech dataset featuring expressive recordings by native speakers.

48 Speech Hours
48 People
TTSLanguage Modelling
Monologue Japanese speech dataset for voice technology training
Japanese (Japan)

Japanese TTS Dataset for Speech Synthesis

Studio-quality Japanese speech dataset featuring expressive recordings by native speakers.

49 Speech Hours
49 People
TTSLanguage Modelling
Kannada TTS monologue speech dataset for text-to-speech model training
Kannada (India)

Kannada TTS Dataset for Speech Synthesis

Studio-quality Kannada speech dataset featuring expressive recordings by native speakers.

50 Speech Hours
50 People
TTSLanguage Modelling
Studio-quality Korean speech dataset for TTS systems
Korean (South Korea)

Korean TTS Dataset for Speech Synthesis

Studio-quality Korean speech dataset featuring expressive recordings by native speakers.

51 Speech Hours
51 People
TTSLanguage Modelling
Malayalam monologue voice dataset for speech synthesis applications
Malayalam (India)

Malayalam TTS Dataset for Speech Synthesis

Studio-quality Malayalam speech dataset featuring expressive recordings by native speakers.

52 Speech Hours
52 People
TTSLanguage Modelling
Mandarin Chinese TTS dataset for AI voice generation
Mandarin (China)

Mandarin Chinese TTS Dataset for Speech Synthesis

Studio-quality Mandarin Chinese speech dataset featuring expressive recordings by native speakers.

53 Speech Hours
53 People
TTSLanguage Modelling
Marathi studio-recorded speech data for building TTS models
Marathi (India)

Marathi TTS Dataset for Speech Synthesis

Studio-quality Marathi speech dataset featuring expressive recordings by native speakers.

54 Speech Hours
54 People
TTSLanguage Modelling
Native Norwegian speech dataset for training text-to-speech systems
Norwegian (Norway)

Norwegian TTS Dataset for Speech Synthesis

Studio-quality Norwegian speech dataset featuring expressive recordings by native speakers.

55 Speech Hours
55 People
TTSLanguage Modelling
Odia audio dataset for neural TTS training
Odia (India)

Odia TTS Dataset for Speech Synthesis

Studio-quality Odia speech dataset featuring expressive recordings by native speakers.

56 Speech Hours
56 People
TTSLanguage Modelling
Expressive Polish monologue dataset for voice synthesis
Polish (Poland)

Polish TTS Dataset for Speech Synthesis

Studio-quality Polish speech dataset featuring expressive recordings by native speakers.

57 Speech Hours
57 People
TTSLanguage Modelling
Clean Portuguese WAV audio dataset for TTS development
Portuguese (Portugal)

Portuguese TTS Dataset for Speech Synthesis

Studio-quality Portuguese speech dataset featuring expressive recordings by native speakers.

58 Speech Hours
58 People
TTSLanguage Modelling
Professional Punjabi speech corpus for text-to-speech AI
Punjabi (India)

Punjabi TTS Dataset for Speech Synthesis

Studio-quality Punjabi speech dataset featuring expressive recordings by native speakers.

59 Speech Hours
59 People
TTSLanguage Modelling
Russian scripted speech dataset for TTS and language modeling
Russian (Russia)

Russian TTS Dataset for Speech Synthesis

Studio-quality Russian speech dataset featuring expressive recordings by native speakers.

60 Speech Hours
60 People
TTSLanguage Modelling
Argentinians Spanish dataset for voice assistant and TTS systems
Spanish (Argentina)

Argentinians Spanish TTS Dataset for Speech Synthesis

Studio-quality Argentinians Spanish speech dataset featuring expressive recordings by native speakers.

61 Speech Hours
61 People
TTSLanguage Modelling
Long-form Colombian Spanish monologue dataset for speech generation
Spanish (Colombia)

Colombian Spanish TTS Dataset for Speech Synthesis

Studio-quality Colombian Spanish speech dataset featuring expressive recordings by native speakers.

62 Speech Hours
62 People
TTSLanguage Modelling
High-fidelity Mexican Spanish speech recordings for voice AI
Spanish (Mexico)

Mexican Spanish TTS Dataset for Speech Synthesis

Studio-quality Mexican Spanish speech dataset featuring expressive recordings by native speakers.

63 Speech Hours
63 People
TTSLanguage Modelling
Spanish speech data for TTS and prosody modeling
Spanish (Spain)

Spanish TTS Dataset for Speech Synthesis

Studio-quality Spanish speech dataset featuring expressive recordings by native speakers.

64 Speech Hours
64 People
TTSLanguage Modelling
Swedish AI voice dataset for training multilingual TTS models
Swedish (Sweden)

Swedish TTS Dataset for Speech Synthesis

Studio-quality Swedish speech dataset featuring expressive recordings by native speakers.

65 Speech Hours
65 People
TTSLanguage Modelling
Filipino voice dataset for custom TTS engine development
Filipino (Philippines)

Filipino TTS Dataset for Speech Synthesis

Studio-quality Filipino speech dataset featuring expressive recordings by native speakers.

66 Speech Hours
66 People
TTSLanguage Modelling
Phonetically rich Tamil dataset for speech synthesis research
Tamil (India)

Tamil TTS Dataset for Speech Synthesis

Studio-quality Tamil speech dataset featuring expressive recordings by native speakers.

67 Speech Hours
67 People
TTSLanguage Modelling
Telugu India dataset for studio-grade speech AI
Telugu (India)

Telugu TTS Dataset for Speech Synthesis

Studio-quality Telugu speech dataset featuring expressive recordings by native speakers.

68 Speech Hours
68 People
TTSLanguage Modelling
Monologue Turkish speech dataset for voice technology training
Turkish (Turkey)

Turkish TTS Dataset for Speech Synthesis

Studio-quality Turkish speech dataset featuring expressive recordings by native speakers.

69 Speech Hours
69 People
TTSLanguage Modelling
Ukrainian TTS monologue speech dataset for text-to-speech model training
Ukrainian (Ukraine)

Ukrainian TTS Dataset for Speech Synthesis

Studio-quality Ukrainian speech dataset featuring expressive recordings by native speakers.

70 Speech Hours
70 People
TTSLanguage Modelling
Studio-quality Urdu speech dataset for TTS systems
Urdu (Pakistan)

Urdu TTS Dataset for Speech Synthesis

Studio-quality Urdu speech dataset featuring expressive recordings by native speakers.

71 Speech Hours
71 People
TTSLanguage Modelling
Bulgarian monologue voice dataset for speech synthesis applications
Bulgarian (Bulgaria)

Bulgarian TTS Dataset for Speech Synthesis

Studio-quality Bulgarian speech dataset featuring expressive recordings by native speakers.

72 Speech Hours
72 People
TTSLanguage Modelling
US Spanish TTS dataset for AI voice generation
Spanish (USA)

US Spanish TTS Dataset for Speech Synthesis

Studio-quality US Spanish speech dataset featuring expressive recordings by native speakers.

73 Speech Hours
73 People
TTSLanguage Modelling
Canadian French studio-recorded speech data for building TTS models
French (Canada)

Canadian French TTS Dataset for Speech Synthesis

Studio-quality Canadian French speech dataset featuring expressive recordings by native speakers.

74 Speech Hours
74 People
TTSLanguage Modelling
Native Philippines English speech dataset for training text-to-speech systems
English (Philippines)

Philippines English TTS Dataset for Speech Synthesis

Studio-quality Philippines English speech dataset featuring expressive recordings by native speakers.

75 Speech Hours
75 People
TTSLanguage Modelling
Expressive Romanian monologue dataset for voice synthesis
Romanian (Romania)

Romanian TTS Dataset for Speech Synthesis

Studio-quality Romanian speech dataset featuring expressive recordings by native speakers.

77 Speech Hours
77 People
TTSLanguage Modelling
Clean Thai WAV audio dataset for TTS development
Thai (Thailand)

Thai TTS Dataset for Speech Synthesis

Studio-quality Thai speech dataset featuring expressive recordings by native speakers.

78 Speech Hours
78 People
TTSLanguage Modelling
Professional Swiss German speech corpus for text-to-speech AI
German (Switzerland)

Swiss German TTS Dataset for Speech Synthesis

Studio-quality Swiss German speech dataset featuring expressive recordings by native speakers.

79 Speech Hours
79 People
TTSLanguage Modelling
Brazilian Portuguese scripted speech dataset for TTS and language modeling
Portuguese(Brazil)

Brazilian Portuguese TTS Dataset for Speech Synthesis

Studio-quality Brazilian Portuguese speech dataset featuring expressive recordings by native speakers.

80 Speech Hours
80 People
TTSLanguage Modelling
Malay dataset for voice assistant and TTS systems
Malay (Malaysia)

Malay TTS Dataset for Speech Synthesis

Studio-quality Malay speech dataset featuring expressive recordings by native speakers.

81 Speech Hours
81 People
TTSLanguage Modelling
Long-form Vietnamese monologue dataset for speech generation
Vietnamese (Vietnam)

Vietnamese TTS Dataset for Speech Synthesis

Studio-quality Vietnamese speech dataset featuring expressive recordings by native speakers.

82 Speech Hours
82 People
TTSLanguage Modelling
High-fidelity Bangladesh Bengali speech recordings for voice AI
Bengali (Bangladesh)

Bangladesh Bengali TTS Dataset for Speech Synthesis

Studio-quality Bangladesh Bengali speech dataset featuring expressive recordings by native speakers.

83 Speech Hours
83 People
TTSLanguage Modelling

Build expressive voice AI with our high-quality TTS data

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