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[TAS-5572] ♻️ Consolidate TTS voice config and support per-voice model overrides #893

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[TAS-5572] ♻️ Consolidate TTS voice config and support per-voice model overrides #893

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755074c
♻️ Consolidate TTS voice config and support per-voice model overrides
williamchong Mar 30, 2026
b24faa2
💬 Update voice name
williamchong Mar 30, 2026
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2 changes: 1 addition & 1 deletion composables/use-tts-voice.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ export function useTTSVoice(options: TTSVoiceOptions = {}) {
// hardcoded voice options for now
const ttsLanguageVoiceOptions = [
{ label: 'Pazu 薯伯伯 - 粵語', value: 'zh-HK_pazu' },
{ label: 'Phoebe - 粵語', value: 'zh-HK_phoebe' },
{ label: 'Phoebe - 粵語口語', value: 'zh-HK_phoebe' },
{ label: 'Aurora - 國語', value: 'zh-TW_aurora' },
{ label: '國語男聲', value: 'zh-TW_1' },
{ label: 'English female', value: 'en-US_0' },
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4 changes: 1 addition & 3 deletions server/api/reader/tts.get.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -32,8 +32,6 @@ function parseRangeHeader(rangeHeader: string, totalSize: number): { start: numb
return { start, end }
}

const KNOWN_VOICE_IDS = new Set(['0', '1', 'aurora', 'pazu', 'phoebe'])

function getTTSProvider(voiceId: string): MinimaxTTSProvider {
if (!KNOWN_VOICE_IDS.has(voiceId)) {
throw createError({
Expand Down Expand Up @@ -139,7 +137,7 @@ export default defineEventHandler(async (event) => {
})
}

const ttsModel = getMinimaxModel({ customVoiceId: customMiniMaxVoiceId, language })
const ttsModel = getMinimaxModel({ voiceId, customVoiceId: customMiniMaxVoiceId, language })
const bucket = getTTSCacheBucket()
const isCacheEnabled = !!bucket
const cacheKey = isCacheEnabled
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40 changes: 25 additions & 15 deletions server/utils/tts-minimax.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,16 +6,21 @@ export const LANG_MAPPING = {
'zh-HK': 'Chinese,Yue',
}

// Voice mapping with provider information
const VOICE_MAPPING: Record<string, string> = {
// Minimax voices
0: 'Chinese (Mandarin)_Warm_Bestie',
1: 'Chinese (Mandarin)_Southern_Young_Man',
aurora: 'three_book_aurora_v0',
pazu: 'book_pazu_v2',
phoebe: 'phoebe_v1',
interface VoiceConfig {
minimaxVoiceId: string
model?: string
}

const VOICE_CONFIG: Record<string, VoiceConfig> = {
0: { minimaxVoiceId: 'Chinese (Mandarin)_Warm_Bestie' },
1: { minimaxVoiceId: 'Chinese (Mandarin)_Southern_Young_Man' },
aurora: { minimaxVoiceId: 'three_book_aurora_v0' },
pazu: { minimaxVoiceId: 'book_pazu_v2' },
phoebe: { minimaxVoiceId: 'phoebe_v1', model: 'speech-2.6-hd' },
}

export const KNOWN_VOICE_IDS = new Set(Object.keys(VOICE_CONFIG))

export function getTTSPronunciationDictionary(language: string) {
switch (language) {
case 'zh-TW':
Expand All @@ -40,10 +45,15 @@ export function getTTSPronunciationDictionary(language: string) {
}

export function getMinimaxModel(options: {
voiceId?: string
customVoiceId?: string
language?: string
} = {}): string {
const { customVoiceId, language } = options
const { voiceId, customVoiceId, language } = options
const voiceModel = voiceId && VOICE_CONFIG[voiceId]?.model
if (voiceModel) {
return voiceModel
}
if (language === 'zh-HK') {
return 'speech-2.8-hd'
}
Expand All @@ -57,16 +67,16 @@ export class MinimaxTTSProvider implements BaseTTSProvider {
async processRequest(params: TTSRequestParams): Promise<Buffer> {
const { text, language, voiceId, customMiniMaxVoiceId } = params

if (!customMiniMaxVoiceId && !VOICE_MAPPING[voiceId]) {
if (!customMiniMaxVoiceId && !VOICE_CONFIG[voiceId]) {
throw createError({
status: 400,
message: 'INVALID_VOICE_ID',
})
}

const client = getMiniMaxSpeechClient()
const resolvedVoiceId = (customMiniMaxVoiceId || VOICE_MAPPING[voiceId]) as string
const model = getMinimaxModel({ customVoiceId: customMiniMaxVoiceId, language })
const resolvedVoiceId = (customMiniMaxVoiceId || VOICE_CONFIG[voiceId]!.minimaxVoiceId) as string
const model = getMinimaxModel({ voiceId, customVoiceId: customMiniMaxVoiceId, language })

const result = await client.synthesize({
text,
Expand All @@ -87,16 +97,16 @@ export class MinimaxTTSProvider implements BaseTTSProvider {
async processRequestStream(params: TTSRequestParams): Promise<ReadableStream<Buffer>> {
const { text, language, voiceId, customMiniMaxVoiceId } = params

if (!customMiniMaxVoiceId && !VOICE_MAPPING[voiceId]) {
if (!customMiniMaxVoiceId && !VOICE_CONFIG[voiceId]) {
throw createError({
status: 400,
message: 'INVALID_VOICE_ID',
})
}

const client = getMiniMaxSpeechClient()
const resolvedVoiceId = (customMiniMaxVoiceId || VOICE_MAPPING[voiceId]) as string
const model = getMinimaxModel({ customVoiceId: customMiniMaxVoiceId, language })
const resolvedVoiceId = (customMiniMaxVoiceId || VOICE_CONFIG[voiceId]!.minimaxVoiceId) as string
const model = getMinimaxModel({ voiceId, customVoiceId: customMiniMaxVoiceId, language })

return await client.synthesizeStream({
text,
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