Antalia-2 Mini

Türkçe özet. Antalia-2 Mini, tek sesli, küçük bir Türkçe metinden konuşmaya (TTS) modelidir: toplam 7,6 milyon parametre, 48 kHz çıkış, sıradan bir işlemcide gerçek zamandan çok daha hızlı. Ham metni alır; sayıları, tarihleri, saatleri, tutarları, kısaltmaları ve metindeki İngilizce ya da marka adlarını kendi normalleştiricisiyle okunuşa çevirir. Ses sentetik bir erkek sesidir (Antalia-2'nin sesi): gerçek bir kişinin sesi değildir ve eğitim verisinde gerçek konuşmacı kaydı yoktur. Kod ve model ağırlıkları Apache-2.0 lisanslıdır. Kurulum: pip install antalia-mini. Tarayıcınızda deneyin: https://huggingface.co/spaces/cloud0day3/antalia-mini

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Antalia-2 Mini (version 1.0.1) is a small Turkish text-to-speech model with one voice. It has 7.62M parameters in total (acoustic model 3.69M, vocoder 3.93M), produces 48 kHz audio, and runs well faster than real time on a CPU. It takes raw Turkish text: a text normaliser inside the package turns numbers, dates, times, amounts, initialisms, web addresses and English or brand words into the way a Turkish speaker says them.

Try it in your browser: huggingface.co/spaces/cloud0day3/antalia-mini runs this release entirely on your device with ONNX Runtime Web (no server; the text never leaves the page).

The voice is a synthetic male voice (Antalia-2's voice), not a real person, and the training data contains no recordings of real speakers. The code and the weights are licensed under Apache-2.0. Its predecessor, Antalia-1, is at cloud0day3/antalia-1.

Quickstart

pip install antalia-mini

The same wheel is also in this repository (pip install https://huggingface.co/cloud0day3/antalia-mini/resolve/main/antalia_mini-1.0.1-py3-none-any.whl). Python 3.10 or newer; the dependencies are PyTorch, NumPy, safetensors, soundfile and cmudict.

from antalia_mini import Antalia

tts = Antalia()  # downloads the weights (~31 MB) once; uses a CUDA GPU if there is one, else the CPU
speech = tts.say("Randevunuz 14 Ekim Salı günü saat 15:30'da.", path="randevu.wav", seed=0)
print(speech.duration, speech.sample_rate, speech.seed)

# several texts at once (batched on a GPU)
speeches = tts.say(["Merhaba.", "Siparişiniz yola çıktı."], seed=0)

# streaming: the first sentence is synthesised first, then the rest, a few sentences at a time
for chunk in tts.stream(long_text):
    play(chunk)  # float32 numpy array at tts.sample_rate

# telephone or ASR pipelines: 24000, 16000 or 8000 Hz (resampled from 48 kHz)
tts8k = Antalia(sample_rate=8000)

# Apple Silicon: the CPU is the default; the GPU is an option
tts_mps = Antalia(device="mps")

Command line: antalia-mini "Merhaba, size nasıl yardımcı olabilirim?" -o merhaba.wav.

Options of say(): seed (the same text, seed and settings give the same audio; without a seed a random one is drawn and returned in speech.seed), speed (default 0.95, slightly slower than the voice's own pace; higher is faster), steps (flow-matching steps, default 8; 4 is faster and measurably less accurate, see Evaluation), cfg (classifier-free guidance, default 2.0). Antalia.normalize(text) shows the exact text the model reads. The model runs in fp32; Antalia(variant="fp16") downloads the half-size weights file (converted back to fp32 when loaded; the audio is practically identical).

An output EQ is applied by default (since 1.0.1, chosen by ear over 1.0.0's darker tone): less bass (80 Hz high-pass, -4 dB low shelf at 200 Hz), less "boxiness" (-2.5 dB at 350 Hz), more presence (+3 dB at 3.2 kHz) and air (+2 dB above 8 kHz), and a de-esser that turns the band above 5.5 kHz down only while it is loud, so "s" and "ş" stay soft. It is designed for the chosen output rate and followed by a fixed +1.6 dB make-up gain (the raw output's loudness) and a soft peak limiter that keeps the output below full scale (no per-utterance loudness normalisation). Pass eq=False (to Antalia, say or stream, or --no-eq on the command line) for the raw output, or your own curve, e.g. 1.0.0's tone: Antalia(curve=None, deess=None, makeup_db=0, tone=(6, -9)). stream() carries the filter state across chunks, so the joined chunks match say()'s output (to within the de-esser's 2 ms level steps at chunk edges).

Two reading fixes are on by default. A text that starts with "ö" or "ı" is spoken after a short "ee," that is cut out of the audio again, because the voice tends to put a stray "l" in front of those sounds at the very start (see Limitations); and double sounds, inside a word ("berraktı") or across a word gap ("alerjim mahvediyor"), are held a little longer, as Turkish speakers do. Both can be turned off: Antalia(prefix="", gem_stretch=1.0).

Samples

Raw input text, seed 0, default settings (8 steps, cfg 2.0, output EQ).

Evaluation

Freya-TR-Eval (freyavoice/freya-tr-eval), all 495 sentences, raw text in. Protocol, following EMA Lightning's card and Freya's reference scorer:

• intelligibility: each clip is resampled to 8 kHz and back to 16 kHz (band matching), transcribed by faster-whisper large-v3 (fp16, beam 5, language tr, other options at their defaults); reference and transcript get Freya's Turkish normalisation; WER and CER are computed over the whole set with jiwer;
• naturalness: UTMOS22-strong, mean over clips, on the full band (resampled to 16 kHz) and on the 8 kHz band (the same band-matched audio the WER uses);
• 3 seeds per system unless noted; WER gives the mean, with the lowest and highest seed in brackets;
• Antalia-2 Mini with its default settings; EMA Lightning reproduced on our harness with the same protocol.

Antalia-2 Mini and EMA Lightning are level on intelligibility. On this harness 1.0.1 has WER 1.02% vs 1.00% and CER 0.21% vs 0.20%; in a second, independent run on the public benchmark page's harness (other seeds, one NVIDIA L4) it has CER 0.220% vs 0.225%, the lowest of the 15 Turkish systems measured there, and WER 1.09% vs 1.04%. Both models vary by about ±0.1 WER from seed to seed, so these differences are within noise. EMA Lightning is ahead on full-band UTMOS (3.30 vs 3.18); Antalia-2 Mini scores higher on UTMOS in the 8 kHz band, the band a phone call carries, and is smaller (7.62M vs 8.6M parameters). EMA Lightning's own card reports 0.92 / 0.18 / ~3.30 on the same protocol.

1.0.1 changed only the output EQ, which listeners preferred to 1.0.0's darker tone; the automatic scores moved slightly against it (UTMOS 3.25 → 3.18, WER 0.97 → 1.02 here). 1.0.0's numbers are kept for reference, and its tone is one argument away (see above).

The two reading fixes (see Quickstart) were found by studying where the model went wrong: the first in its training data, the second in this benchmark's errors. To check that the second one is not tuned to the benchmark, we compared both settings on 500 other sentences (160 of our own test prompts and 340 held-out lines of the training corpus, never trained on): WER 6.12% → 6.02%, CER 1.53% → 1.48%, 3 seeds each. (WER is higher there because those lines contain digits, abbreviations and foreign names that the scoring normalisation does not match.) The teacher row is the system that generated Antalia-2 Mini's training audio, given for reference; it is not a small model. None of the evaluation sentences, or near-duplicates of them, were in the training text.

On the public benchmark page

We also keep an independent re-run of Freya-TR-Eval for every Turkish system we could run, at speech.patientdesk.ai/benchmarks (scripts and per-clip transcripts: PatientdeskAI/freya-tr-eval-rerun). It uses EMA Lightning's published eval.py for scoring, 3 seeded takes per system, and one NVIDIA L4 for speed; Antalia-2 Mini 1.0.1 ran there with its default settings, separately from the run above (other seeds). Sorted by WER; best value per column in bold; API systems have no RTF.

Antalia-2 Mini makes the fewest character errors of the 15 systems, by a narrow margin over EMA Lightning (CER given to three decimals for those two, which round to the same 0.22), and is second on word errors, 0.05 points behind, within either model's seed-to-seed spread. (1.0.0 scored 1.05 / 0.20 / 93.1% / 3.25 there.) EMA Lightning is about 1.7 times faster on the L4 at Antalia-2 Mini's default 8 steps. "Clean sentences" is the share of sentences transcribed without a single word error.

Size and speed

RTF is synthesis time divided by audio duration (lower is faster; 0.01 means one second of speech takes 10 ms), default settings (8 steps, cfg 2.0), batch 1 after a warm-up, the first 100 benchmark sentences, through each package's own API (text normalisation and output processing included), measured with 1.0.0 (1.0.1 builds its output filter once instead of per sentence and is a little faster). On a GPU, single requests are about 2 times slower than EMA Lightning's at the default 8 steps; on a CPU, Antalia-2 Mini is about 1.4 times faster on the same 8 cores. On an Apple M5 laptop it speaks about 50 times faster than real time on 2 CPU threads. The Apple M5 numbers were measured with other applications running, so a quiet machine may be a little faster. On Apple Silicon the package uses 2 CPU threads by default, which measured faster than 4 or more; elsewhere set Antalia(threads=N) to taste.

Model

The model reads characters, not phonemes: Turkish spelling is close to pronunciation, and the normaliser handles the cases where it is not. The methods are reimplemented from the papers: monotonic alignment search (Glow-TTS, Matcha-TTS), flow matching (Lipman et al., 2023), shortcut models (Frans et al., 2024), adaLN-single (PixArt-α), ConvNeXt, Vocos, HiFi-GAN and UnivNet discriminators (training only).

Voice

One voice: a synthetic male voice (Antalia-2's voice), not a real person. The model has no speaker input and cannot clone voices.

Training data

About 1,578 hours of synthetic speech, all in Antalia-2's voice, generated with VoxCPM2 (OpenBMB, Apache-2.0) from a reference of that voice. No recordings of real speakers were used. The text came from:

• Turkish Wikipedia (CC BY-SA 4.0) and FineWeb-2 Turkish (ODC-By 1.0);
• customer-service style sentences (appointments, banking, retail, deliveries) written with a language model (Qwen3);
• templates for numbers, dates, times, amounts, phone numbers and codes;
• all of it passed through the same normaliser the package uses, and sentences overlapping Freya-TR-Eval removed.

Every generated clip was checked automatically (Whisper large-v3 transcript against the text, UTMOS, and similarity to the voice) and dropped if it failed.

Text normaliser

The normaliser is PatientDesk AI's Turkish serving normaliser, released here under the same licence. It spells out cardinal and ordinal numbers, decimals, percentages, dates, times, ranges, amounts in lira and other currencies, phone numbers, e-mail and web addresses and common abbreviations, reads initialisms with Turkish letter names, and respells English and brand words the way they are said in Turkish (using the CMU Pronouncing Dictionary and a reviewed brand lexicon). Antalia.normalize(text) shows its output.

Limitations

• One voice, one speaking style; no emotion or style control beyond speed.
• Turkish only. English words inside Turkish sentences are respelled; whole English sentences are not supported.
• Short interjections on their own ("Evet.", "Hı hı.", "Tamam!") are its weakest area: they can come out flat or rushed. In running text they are packed together with neighbouring sentences, which helps.
• Readings follow the normaliser. Roman numerals ("XIX. yüzyıl"), ordinals written before names ("2. Abdülhamit"), unusual formats, rare abbreviations and some foreign names can be read wrongly; check Antalia.normalize(text) when a reading matters.
• Long inputs are split into sentence-sized chunks (up to about 18 seconds each) and joined with short pauses; prosody does not carry across chunks.
• At the very start of a text the voice tends to put a stray "l" before "ö" (and, less often, a "d" or "b" before "ı"): the model learned it from its training audio. The default "ee," trick hides it at the start of each chunk; a fix in the training data is planned.
• The numbers above are automatic metrics on one benchmark, not listening tests.

Responsible use

• Tell listeners when they are hearing a synthetic voice.
• Do not use the model to impersonate real people or to make speech that could be mistaken for a real person's statement.
• Do not use it for fraud, harassment, or deceptive calls.

License

The code, the text normaliser and the model weights are all licensed under Apache-2.0 (see LICENSE and NOTICE in this repository). The cmudict dependency is BSD-licensed.

Credits

• VoxCPM2 by OpenBMB, which generated the training audio.
• Freya-TR-Eval and Freya's reference scorer, for the benchmark.
• EMA Lightning, the Turkish model we compare against.
• The CMU Pronouncing Dictionary, through the cmudict package.
• Turkish Wikipedia and FineWeb-2 for the training text.

Citation

@misc{antalia_mini_2026,
  title        = {Antalia-2 Mini: a small Turkish text-to-speech model},
  version      = {1.0.1},
  author       = {{PatientDesk AI}},
  year         = {2026},
  howpublished = {\url{https://huggingface.co/cloud0day3/antalia-mini}}
}