Doubao Speech SDK

Go and Rust SDK for Volcengine Doubao Speech API (豆包语音).

Official API Documentation: api/README.md

Design Goals

Dual API Version Support: V1 (Classic) and V2/V3 (BigModel) APIs
Multiple Auth Methods: Bearer Token, API Key, V2 API Key
Comprehensive Coverage: TTS, ASR, Voice Clone, Realtime, Meeting, Podcast, etc.
Streaming-first: WebSocket-based streaming for real-time scenarios

API Versions

Doubao Speech has two API generations:

Version	Name	Features	Recommended
V1	Classic	Basic TTS/ASR	Legacy use
V2/V3	BigModel	Advanced TTS/ASR, Realtime	✅ New projects

API Coverage

Feature	V1 (Classic)	V2 (BigModel)	Go	Rust
TTS Sync	✅	✅	✅	✅
TTS Stream	✅	✅	✅	✅
TTS Async (Long Text)	✅	✅	✅	⚠️
ASR One-sentence	✅	✅	✅	✅
ASR Stream	✅	✅	✅	✅
ASR File	✅	✅	✅	⚠️
Voice Clone	N/A	✅	✅	✅
Realtime Dialogue	N/A	✅	✅	✅
Meeting Transcription	N/A	✅	✅	✅
Podcast Synthesis	N/A	✅	✅	✅
Translation (SIMT)	N/A	✅	✅	✅
Media Subtitle	N/A	✅	✅	✅
Console API	N/A	✅	✅	✅

Architecture

graph TB
    subgraph client["Client"]
        subgraph v1["V1 Services (Classic)"]
            tts1[TTS]
            asr1[ASR]
        end
        subgraph v2["V2 Services (BigModel)"]
            tts2[TTSV2]
            asr2[ASRV2]
            advanced["VoiceClone<br/>Realtime<br/>Meeting<br/>Podcast<br/>Translation<br/>Media"]
        end
    end
    
    subgraph console["Console Client"]
        aksig["AK/SK Signature<br/>Authentication"]
    end
    
    client --> api["Volcengine API"]
    console --> api

Authentication Methods

Speech API Client

Method	Header	Use Case
API Key	`x-api-key: {key}`	Simplest, recommended
Bearer Token	`Authorization: Bearer;{token}`	V1 APIs
V2 API Key	`X-Api-Access-Key`, `X-Api-App-Key`	V2/V3 APIs

Console Client

Uses Volcengine OpenAPI AK/SK signature (HMAC-SHA256).

Resource IDs (V2/V3)

Service	Resource ID
TTS 2.0	`seed-tts-2.0`
TTS 2.0 Concurrent	`seed-tts-2.0-concurr`
ASR Stream	`volc.bigasr.sauc.duration`
ASR File	`volc.bigasr.auc.duration`
Realtime	`volc.speech.dialog`
Podcast	`volc.service_type.10050`
Translation	`volc.megatts.simt`
Voice Clone	`seed-icl-2.0`

Clusters (V1)

Cluster	Service
`volcano_tts`	TTS Standard
`volcano_mega`	TTS BigModel
`volcano_icl`	Voice Clone
`volcengine_streaming_common`	ASR Streaming

Examples Directory

examples/go/doubaospeech/ - Go SDK examples
examples/cmd/doubaospeech/ - CLI test scripts

CLI tool: go/cmd/doubaospeech/
CLI tests: examples/cmd/doubaospeech/

Giztoy Documentation