Tagata Atiina'e API
Tuufaatasia le fa'avasegaina o Addavox i lau faiga o galuega. Filifili le Fa'aliliuina o Vitio API mo le fa'avasegaina atoa o vitio fa'atasi ai ma le taimi, QA, ulutala, ma le avanoa atoa i le Iloiloga Faatonu e ala i so'otaga fa'ataulaitu. E mafai foi ona e filifilia so'o se tasi o API tautua mo isi galuega, e pei o le fa'amatalaina o se tusi po'o le fa'aliliuina ma le fa'amatalaina o se tusi i le taimi e tasi.
API Ki
O ki API e patino i se teugatupe Addavox . Fausia se tasi i le fa'amau Amata le fa'avasegaina o lo'o i luga, ona faia lea o se ki i le app — o vala'au uma e totogi i lena teugatupe.
O auaunaga ta'ito'atasi API e totogi mai lau paleni aitalafu, lea e te fa'atumu ma pulea i lau teugatupe Addavox . O le tuusaunoaga o le vitio atoa o le fa'asalalauga: e fa'aogaina le tau tutusa e pei o le fuafuaga e te filifilia i Fuafuaga & Tau — o minute o lau fuafuaga e aofia ai, ona ova lea i le fua faatatau o le fuafuaga.
URL Autu:
https://api.addavox.com/api/v1
Ulutala Fa'amaonia:
X- API -Ki: LAU_KI
Maliega ma le Fa'atagaga
E tatau ona aofia i talosaga uma API se mea e malie ai ma se fanua e sili ona maualuga le tulaga. O nei mea uma e fausia ai se faʻamaumauga o le faʻamaoniga o galuega taʻitasi e faʻamaonia ai o loʻo ia te oe aia tatau talafeagai ma maliega a le failauga.
O le fanua o le mode e fuafua ai le fa'aputuga o leo: "voice_matched" e fa'aogaina le fa'asoloina o leo o le sipika, "standard" e fa'aogaina le TTS fa'apitoa. E tutusa le tau o mode uma e lua — o le filifiliga e fa'avae i le maliega.
Faiga Fa'afetaui Leo — Mana'omia le Maliega Atoatoa
Faiga Masani — Aia Tatau i Mataupu
Fa'asinomaga i le Fanua
| Fanua | Ituaiga | Mana'omia | Fa'amatalaga |
|---|---|---|---|
| mode | string | Tulaga maualuga | voice_matched pe standard |
| speaker_consent_obtained | boolean | na'o le leo_matched | Maliega manino mai failauga e mafai ona iloa |
| content_rights_confirmed | boolean | Faiga uma e lua | Puleaina po'o le laisene aloaia i le anotusi |
| eula_accepted | boolean | Faiga uma e lua | Taliaina le Addavox EULA |
| attested_by | string | Faiga uma e lua | Imeli po'o le fa'ailoaina o le vaega e nafa ma le matafaioi |
| attested_at | ISO 8601 | Faiga uma e lua | I totonu ole 24 itula talu ona faia le talosaga |
Fa'ailoga Sese o le Maliega
| HTTP | Tulafono | Tulaga |
|---|---|---|
| 403 | CONSENT_MISSING | Leai se maliega |
| 403 | CONSENT_INCOMPLETE | Ua misi le attested_by pe le aoga le attested_at |
| 403 | CONSENT_NOT_AFFIRMED | E le'i fa'amaoniaina aia tatau po'o le EULA |
| 403 | CONSENT_EXPIRED | ua faamaonia_pe a sili atu i le 24 itula |
| 403 | SPEAKER_CONSENT_REQUIRED | leo_tutusa e aunoa ma le maliega a le failauga |
| 400 | INVALID_MODE | Tau fa'aoga le aoga |
API Fa'asinomaga
O lo'o maua le fa'atulagaga atoa o fegalegaleaiga ma isi fa'ai'uga fa'aopoopo e ala i le Open API .
Full Video Localization
/api/v1/localize-video
API key
Video Dubbing
Full video dubbing: send a video URL + target languages, get localized videos back.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
video_url |
string |
Yes | HTTPS URL of the source video to dub. |
target_languages |
string[] |
Yes | One or more target language codes. |
source_language |
string |
Yes | Language of the source video's spoken audio, e.g. 'en'. |
project_name |
string | null |
No | Optional project name. Defaults to 'API Video: {filename}'. |
enable_llm_qa |
boolean |
No | Opt-in LLM quality-review pass over translations before voice synthesis. Adds processing time. |
mode |
LocalizationMode |
No | Drives consent. Default 'voice_matched' (clones the speaker); 'standard' uses synthetic TTS. |
consent |
ConsentAttestation |
Yes | Consent attestation; see Consent & Authorization. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Master job ID — poll for per-language status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
target_languages |
string[] |
Echoed target language codes. |
ConsentAttestation
speaker_consent_obtained |
boolean | null |
Attests that explicit consent has been obtained from all identifiable speakers. Required for voice_matched mode only. |
content_rights_confirmed |
boolean |
Attests ownership or a valid license to the content. Required in both modes. |
eula_accepted |
boolean |
Confirms the client has read and accepts the Addavox EULA. Required in both modes. |
attested_by |
string |
Email or identifier of the responsible individual or system. |
attested_at |
string |
ISO 8601 timestamp of attestation. Must be within 24 hours of the request. |
API Services
/api/v1/separate
API key
Voice Separation
Split caller-supplied audio into vocals + background stems (async job).
Request body
| Field | Type | Required | Description |
|---|---|---|---|
audio_url |
string |
Yes | HTTPS URL of the source audio to separate. |
project_name |
string | null |
No | Optional project name. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Poll this job ID for status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
charge |
ChargeInfo |
Billing detail for this submission. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
/api/v1/transcribe
API key
Transcribe
Transcribe caller-supplied audio and return a transcript (async job).
Request body
| Field | Type | Required | Description |
|---|---|---|---|
audio_url |
string |
Yes | HTTPS URL of the source audio to transcribe. |
language |
string |
Yes | Spoken language of the audio (BCP-47), e.g. 'en-US'. |
project_name |
string | null |
No | Optional project name. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Poll this job ID for status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
charge |
ChargeInfo |
Billing detail for this submission. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
/api/v1/pro-transcribe
API key
Pro Transcription
Separate, then transcribe the isolated vocals stem — a cleaner transcript (async job).
Request body
| Field | Type | Required | Description |
|---|---|---|---|
audio_url |
string |
Yes | HTTPS URL of the source audio to transcribe. |
language |
string |
Yes | Spoken language of the audio (BCP-47), e.g. 'en-US'. |
project_name |
string | null |
No | Optional project name. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Poll this job ID for status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
charge |
ChargeInfo |
Billing detail for this submission. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
/api/v1/translate
API key
Translate
Machine-translate text from one language to another. Returns the translated text synchronously — no audio, no job to poll.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
text |
string |
Yes | Text to translate. |
target_language |
string |
Yes | Target language code, e.g. 'es' or 'es-ES'. |
source_language |
string |
Yes | Source language code, e.g. 'en' or 'en-US'. |
Response
| Field | Type | Description |
|---|---|---|
translated_text |
string |
The translated text. |
source_language |
string |
Source language supplied on the request. |
target_language |
string |
Target language the text was translated into. |
charge |
ChargeInfo |
Billing detail for this translation. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
Example
curl -X POST https://api.addavox.com/api/v1/translate \
-H "X-API-Key: $ADDAVOX_KEY" -H "Content-Type: application/json" \
-d '{"text": "Hello", "target_language": "es"}'
/api/v1/narrate
API key
Narrate
Narrate already-translated text into an audiobook, in a preset voice you choose. Preset (synth) voices only — no voice matching.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
audio_url |
string |
Yes | HTTPS URL of the source audio; also used to identify/match speaker voices. |
source_language |
string |
Yes | Source language code, e.g. 'en-US'. |
target_language |
string |
Yes | Target language code, e.g. 'es-ES'. |
segments |
ExternalSegment[] |
Yes | The pre-segmented transcript to voice. |
project_name |
string | null |
No | Optional project name. Defaults to 'API: {source}->{target}'. |
consent |
ConsentAttestation |
Yes | Consent attestation; see Consent & Authorization. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Poll this job ID for status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
voice_type |
string |
Voice type resolved from the request mode. |
total_segments |
integer |
Echoed count of submitted segments. |
charge |
ChargeInfo |
Billing detail for this submission. |
ExternalSegment
source_text |
string |
Original text for this segment. |
start_time |
number |
Segment start, in seconds. Used for speaker-voice matching only, not output timing. |
end_time |
number |
Segment end, in seconds. Used for speaker-voice matching only, not output timing. |
words |
object[] |
Word-level timing; defaults to empty. |
speaker |
object | null |
Speaker metadata for voice selection. |
translated_text |
string | null |
Pre-supplied translation. If provided, translation is skipped for this segment. |
ConsentAttestation
speaker_consent_obtained |
boolean | null |
Attests that explicit consent has been obtained from all identifiable speakers. Required for voice_matched mode only. |
content_rights_confirmed |
boolean |
Attests ownership or a valid license to the content. Required in both modes. |
eula_accepted |
boolean |
Confirms the client has read and accepts the Addavox EULA. Required in both modes. |
attested_by |
string |
Email or identifier of the responsible individual or system. |
attested_at |
string |
ISO 8601 timestamp of attestation. Must be within 24 hours of the request. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
/api/v1/translate-narrate
API key
Translate + Narrate — preset voice
Translate your text to the target language and narrate it in a preset voice. Source and target language must differ.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
audio_url |
string |
Yes | HTTPS URL of the source audio; also used to identify/match speaker voices. |
source_language |
string |
Yes | Source language code, e.g. 'en-US'. |
target_language |
string |
Yes | Target language code, e.g. 'es-ES'. |
segments |
ExternalSegment[] |
Yes | The pre-segmented transcript to voice. |
project_name |
string | null |
No | Optional project name. Defaults to 'API: {source}->{target}'. |
consent |
ConsentAttestation |
Yes | Consent attestation; see Consent & Authorization. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Poll this job ID for status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
voice_type |
string |
Voice type resolved from the request mode. |
total_segments |
integer |
Echoed count of submitted segments. |
charge |
ChargeInfo |
Billing detail for this submission. |
ExternalSegment
source_text |
string |
Original text for this segment. |
start_time |
number |
Segment start, in seconds. Used for speaker-voice matching only, not output timing. |
end_time |
number |
Segment end, in seconds. Used for speaker-voice matching only, not output timing. |
words |
object[] |
Word-level timing; defaults to empty. |
speaker |
object | null |
Speaker metadata for voice selection. |
translated_text |
string | null |
Pre-supplied translation. If provided, translation is skipped for this segment. |
ConsentAttestation
speaker_consent_obtained |
boolean | null |
Attests that explicit consent has been obtained from all identifiable speakers. Required for voice_matched mode only. |
content_rights_confirmed |
boolean |
Attests ownership or a valid license to the content. Required in both modes. |
eula_accepted |
boolean |
Confirms the client has read and accepts the Addavox EULA. Required in both modes. |
attested_by |
string |
Email or identifier of the responsible individual or system. |
attested_at |
string |
ISO 8601 timestamp of attestation. Must be within 24 hours of the request. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
/api/v1/translate-narrate-matched
API key
Translate + Narrate — matched voice
Translate your text to the target language and narrate it in a voice matched from a ≥1-minute audio sample you provide. Source and target language must differ.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
audio_url |
string |
Yes | HTTPS URL of the source audio; also used to identify/match speaker voices. |
source_language |
string |
Yes | Source language code, e.g. 'en-US'. |
target_language |
string |
Yes | Target language code, e.g. 'es-ES'. |
segments |
ExternalSegment[] |
Yes | The pre-segmented transcript to voice. |
project_name |
string | null |
No | Optional project name. Defaults to 'API: {source}->{target}'. |
consent |
ConsentAttestation |
Yes | Consent attestation; see Consent & Authorization. |
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Poll this job ID for status. |
project_id |
string |
The project created for this job. |
status |
string |
Always 'queued' on submit. |
voice_type |
string |
Voice type resolved from the request mode. |
total_segments |
integer |
Echoed count of submitted segments. |
charge |
ChargeInfo |
Billing detail for this submission. |
ExternalSegment
source_text |
string |
Original text for this segment. |
start_time |
number |
Segment start, in seconds. Used for speaker-voice matching only, not output timing. |
end_time |
number |
Segment end, in seconds. Used for speaker-voice matching only, not output timing. |
words |
object[] |
Word-level timing; defaults to empty. |
speaker |
object | null |
Speaker metadata for voice selection. |
translated_text |
string | null |
Pre-supplied translation. If provided, translation is skipped for this segment. |
ConsentAttestation
speaker_consent_obtained |
boolean | null |
Attests that explicit consent has been obtained from all identifiable speakers. Required for voice_matched mode only. |
content_rights_confirmed |
boolean |
Attests ownership or a valid license to the content. Required in both modes. |
eula_accepted |
boolean |
Confirms the client has read and accepts the Addavox EULA. Required in both modes. |
attested_by |
string |
Email or identifier of the responsible individual or system. |
attested_at |
string |
ISO 8601 timestamp of attestation. Must be within 24 hours of the request. |
ChargeInfo
amount |
number |
Total amount charged for this submission, in USD. |
rate_per_min |
number |
Per-minute rate applied. |
duration_min |
number |
Billed minutes (for text services, characters/1000). |
num_languages |
integer |
Number of target languages billed. |
credit_balance_after |
number |
Account credit balance after the charge, in USD. |
Jobs & Results
/api/v1/jobs/{job_id}
API key
Job Status
Check the status of an external localization job.
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Echoes the job ID from the URL. |
type |
string |
Job type: voice | translate_voice | transcribe_translate_voice | video_dub. |
status |
string |
queued | running | completed | failed. For a video_dub job this is a true aggregate of its per-language children, not a per-child value. |
total_segments |
integer |
Total segment count. Always 0 on a video_dub master job. |
completed_segments |
integer |
Completed segment count. Always 0 on a video_dub master job. |
error |
string | null |
Failure message when status is 'failed'. |
/api/v1/jobs/{job_id}/result
API key
Job Result
Get the download URL for a completed external localization job.
Response
| Field | Type | Description |
|---|---|---|
transcript_url |
string | null |
(Transcription job) Signed URL of the transcript JSON. |
vocals_url |
string | null |
(Separation job) Signed URL of the vocals stem. |
background_url |
string | null |
(Separation job) Signed URL of the background stem. |
download_url |
string | null |
Signed URL (24h). Single voice track for an audio job, or a zip of all languages for a video dub. |
duration |
number | null |
(Audio job) Duration in seconds. |
file_size |
integer | null |
(Audio job) File size in bytes. |
project_id |
string | null |
(Video dub) The project ID. |
review_url |
string | null |
(Video dub) Web review URL for the project. |
languages |
VideoJobResultLanguage[] | null |
(Video dub) Per-language result URLs. |
VideoJobResultLanguage
language |
string |
Target language code for this result. |
video_url |
string | null |
Signed URL of the dubbed video (24h expiry). |
audio_url |
string | null |
Signed URL of the dubbed audio track (24h expiry). |
subtitle_url |
string | null |
Signed URL of the subtitle file (24h expiry). |
/api/v1/jobs/{job_id}
API key
Cancel Job
Cancel a queued or running job and refund the charge to the account balance.
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Echoes the cancelled job ID. |
status |
string |
Always 'cancelled'. |
refunded_amount |
number |
Amount refunded for the undelivered work, in USD. |
/api/v1/jobs
API key
List Jobs
List localization jobs for the authenticated account. Query params: status — filter by queued | running | completed | failed | cancelled limit — max results (default 20, max 100) offset — pagination offset (default 0)
Response
| Field | Type | Description |
|---|---|---|
jobs |
JobListItem[] |
The page of jobs, newest first. |
total |
integer |
Total jobs matching the query, across all pages. |
limit |
integer |
Page size used. |
offset |
integer |
Page offset used. |
JobListItem
job_id |
string |
Job ID. |
project_id |
string |
Project the job belongs to. |
type |
string |
Job type. |
target_language |
string | null |
Target language code, if applicable. |
status |
string |
queued | running | completed | failed | cancelled. |
total_segments |
integer |
Total segment count. |
completed_segments |
integer |
Completed segment count. |
error |
string | null |
Failure message when the job failed. |
created_at |
string | null |
ISO 8601 creation time. |
started_at |
string | null |
ISO 8601 start time, if started. |
completed_at |
string | null |
ISO 8601 completion time, if finished. |
charge |
JobListCharge | null |
Charge summary, present if the job was billed. |
/api/v1/jobs/{job_id}/webhooks
API key
Webhook Log
Return the webhook delivery log for a job (all attempts, newest first).
Response
| Field | Type | Description |
|---|---|---|
job_id |
string |
Echoes the job ID from the URL. |
deliveries |
WebhookDelivery[] |
All delivery attempts for the job, newest first. |
WebhookDelivery
id |
string | null |
Delivery attempt ID. |
event |
string | null |
Event type delivered, e.g. 'job.completed'. |
attempt |
integer | null |
Attempt number for this event. |
status_code |
integer | null |
HTTP status returned by the endpoint, if any. |
error |
string | null |
Delivery error, if the attempt failed. |
delivered_at |
string | null |
ISO 8601 time of the attempt. |
/api/v1/jobs/{job_id}/webhooks/retry
API key
Retry Webhook
Re-trigger webhook delivery for the most recent event on a job.
Response
| Field | Type | Description |
|---|---|---|
status |
string |
Always 'queued' — the event was re-queued for delivery. |
event |
string |
The event type that was re-queued. |
Account & Reference
/api/v1/account
API key
Account
Return credit balance and current plan for the authenticated account.
Response
| Field | Type | Description |
|---|---|---|
account_id |
string |
The account's ID. |
credit_balance |
number |
Prepaid credit balance, in USD. |
plan_id |
string |
Current plan ID, e.g. 'free', 'creator'. |
plan_name |
string |
Human-readable plan name. |
included_minutes |
integer |
Localization minutes included in the plan per period. |
minutes_used |
number |
Included minutes used this period. |
minutes_remaining |
number |
Included minutes remaining this period. |
overage_rate |
number |
Per-minute overage rate once included minutes are exhausted, in USD. |
billing_interval |
string | null |
'monthly' or 'annual'; null on the free plan. |
subscription_status |
string |
Subscription status, e.g. 'active', 'past_due', 'free'. |
/api/v1/voices
API key
List Voices
Return available voices for a given language code. Query params: language — BCP-47 code, e.g. 'en-US', 'es-ES' (required) gender — optional filter: MALE | FEMALE
/api/v1/languages
API key
List Languages
Return supported languages. Query params: detail — if true, include provider metadata per language
/api/v1/projects/{project_id}/reviewers
API key
Invite Reviewer
Invite a reviewer to a project (API endpoint).
Request body
| Field | Type | Required | Description |
|---|---|---|---|
name |
string |
Yes | Reviewer's display name, used in the invite email. |
email |
string |
Yes | Where the magic-link invite is sent. |
language |
string |
Yes | Target language code the reviewer will edit. |
Response
| Field | Type | Description |
|---|---|---|
id |
string |
New reviewer ID. |
name |
string |
Echoed from the request. |
email |
string |
Echoed from the request. |
token |
string |
Magic-link token, embedded in the emailed URL. Expires 7 days from creation. |
expires_at |
string | null |
Currently always null — not populated by this call. |
API Tau o Auaunaga
E totogi auaunaga ta'itasi i le minute ma e le o se vaega o se fuafuaga — e te totogia na'o le mea e te vala'au i ai, i le fua fa'atatau e tasi e aunoa ma se fa'aitiitiga fa'aletausaga. E na'o le fa'asalalauga atoa o vitio e fa'avae i luga o minute o lo'o aofia i le fuafuaga. E tusa ma le 1,000 mata'itusi i le minute le aofa'i o auaunaga fa'avae i tusitusiga.
| Auaunaga | O le mea e te auina atu → o le mea e te mauaina | Fua faatatau |
|---|---|---|
| Vavaeeseina o Leo | Leo → leo mamā + pese i tua | $0.02/min |
| Fa'aliliuga (STT) | Leo → tusitusiga o le tusitusiga ma fa'ailoga ma le taimi e tusa ai ma upu | $0.02/min |
| Fa'aliliuga Fa'apolofesa | Leo → Vavaeeseina o Leo + Faaliliuga (STT), sili ona lelei mo leo pisapisao | $0.05/min |
| Faaliliuga | Tusitusiga → tusitusiga ua faaliliuina | $0.02/min |
| Fa'amatala (TTS) | Tusitusiga → leo o loʻo faʻamatalaina i se leo ua uma ona setiina | $0.03/min |
| Faaliliu + Faamatala — leo ua uma ona setiina | Tusitusiga → faaliliuina, ona faamatala lea i se leo ua uma ona faatulagaina | $0.06/min |
| Faaliliu + Faamatala — leo fetaui | Tusitusiga + se faʻataʻitaʻiga o le leo e ≥1-minute → faʻaliliuina, ona faʻamatala lea i le leo e fetaui. E tatau ona eseese le gagana na maua mai ai ma le gagana e faʻamoemoeina. | $0.08/min |
O le fa'avasegaina atoa o vitio o le tasi lea o auaunaga API e feso'ota'i ma se fuafuaga: e fa'aaoga i minute o lau fuafuaga ua aofia ai, ona ova lea i le fua faatatau o le fuafuaga. Va'ai fuafuaga ma tau