Category: provider

Model Studio Qwen TTS Realtime

Use realtime TTS models for low-latency streaming speech output.

Critical model names

Use one of these exact model strings:

• - INLINECODE0
• INLINECODE1
• INLINECODE2
• INLINECODE3
• INLINECODE4

Prerequisites

• - Install SDK in a virtual environment:

CODEBLOCK0

• - Set DASHSCOPE_API_KEY in your environment, or add dashscope_api_key to ~/.alibabacloud/credentials.

Normalized interface (tts.realtime)

Request

• - text (string, required)
• INLINECODE9 (string, required)
• INLINECODE10 (string, optional)
• INLINECODE11 (int, optional)

Response

• - audio_base64_pcm_chunks (array)
• INLINECODE13 (int)
• INLINECODE14 (string)

Operational guidance

• - Use websocket or streaming endpoint for realtime mode.
• Keep each utterance short for lower latency.
• For instruction models, keep instruction explicit and concise.
• Some SDK/runtime combinations may reject realtime model calls over MultiModalConversation; use the probe script below to verify compatibility.

Local demo script

Use the probe script to verify realtime compatibility in your current SDK/runtime, and optionally fallback to a non-realtime model for immediate output:

CODEBLOCK1

Strict mode (for CI / gating):

CODEBLOCK2

Output location

• - Default output: INLINECODE16
• Override base dir with OUTPUT_DIR.

Validation

CODEBLOCK3

Pass criteria: command exits 0 and output/aliyun-qwen-tts-realtime/validate.txt is generated.

Output And Evidence

• - Save artifacts, command outputs, and API response summaries under output/aliyun-qwen-tts-realtime/.
• Include key parameters (region/resource id/time range) in evidence files for reproducibility.

Workflow

1) Confirm user intent, region, identifiers, and whether the operation is read-only or mutating.
2) Run one minimal read-only query first to verify connectivity and permissions.
3) Execute the target operation with explicit parameters and bounded scope.
4) Verify results and save output/evidence files.

References

• - INLINECODE20