import { assertOkOrThrowProviderError } from
"openclaw/plugin-sdk/provider-http" ;
import {
fetchWithSsrFGuard,
ssrfPolicyFromHttpBaseUrlAllowedHostname,
} from
"openclaw/plugin-sdk/ssrf-runtime" ;
export
const DEFAULT_MINIMAX_TTS_BASE_URL =
"https://api.minimax.io ";
export
const MINIMAX_TTS_MODELS = [
"speech-2.8-hd" ,
"speech-01-240228" ] as
const ;
export
const MINIMAX_TTS_VOICES = [
"English_expressive_narrator" ,
"Chinese (Mandarin)_Warm_Girl" ,
"Chinese (Mandarin)_Lively_Girl" ,
"Chinese (Mandarin)_Gentle_Boy" ,
"Chinese (Mandarin)_Steady_Boy" ,
] as
const ;
export
function normalizeMinimaxTtsBaseUrl(baseUrl?: string): string {
const trimmed = baseUrl?.trim();
if (!trimmed) {
return DEFAULT_MINIMAX_TTS_BASE_URL;
}
return trimmed.replace(/\/+$/,
"" );
}
function normalizeMinimaxTtsPitch(pitch: number): number {
return Math.trunc(pitch);
}
export async
function minimaxTTS(params: {
text: string;
apiKey: string;
baseUrl: string;
model: string;
voiceId: string;
speed?: number;
vol?: number;
pitch?: number;
format?: string;
sampleRate?: number;
timeoutMs: number;
}): Promise<Buffer> {
const {
text,
apiKey,
baseUrl,
model,
voiceId,
speed =
1 .
0 ,
vol =
1 .
0 ,
pitch =
0 ,
format =
"mp3" ,
sampleRate =
32000 ,
timeoutMs,
} = params;
const controller =
new AbortController();
const timeout = setTimeout(() => controller.abort(), timeoutMs);
try {
const { response, release } = await fetchWithSsrFGuard({
url: `${baseUrl}/v1/t2a_v2`,
init: {
method:
"POST" ,
headers: {
Authorization: `Bearer ${apiKey}`,
"Content-Type" :
"application/json" ,
},
body: JSON.stringify({
model,
text,
voice_setting: {
voice_id: voiceId,
speed,
vol,
pitch: normalizeMinimaxTtsPitch(pitch),
},
audio_setting: {
format,
sample_rate: sampleRate,
},
}),
signal: controller.signal,
},
timeoutMs,
policy: ssrfPolicyFromHttpBaseUrlAllowedHostname(baseUrl),
auditContext:
"minimax.tts" ,
});
try {
await assertOkOrThrowProviderError(response,
"MiniMax TTS API error" );
const body = (await response.json()) as { data?: { audio?: string } };
const hexAudio = body?.data?.audio;
if (!hexAudio) {
throw new Error(
"MiniMax TTS API returned no audio data" );
}
return Buffer.from(hexAudio,
"hex" );
}
finally {
await release();
}
}
finally {
clearTimeout(timeout);
}
}
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