MuSE: Multilingual Speech Editing

Audio Samples
Anonymous submission to Interspeech 2026
Abstract: We present MuSE, an autoregressive model for multilingual speech editing at both phoneme and word-level granularity. Built on LLaSA, MuSE is trained using a three-stage curriculum learning approach, progressing from text-phoneme grounding to full bidirectional audio infilling. We train on multilingual-audio-alignments, a 32.5k-hour phoneme-aligned corpus spanning 13 languages. MuSE achieves state-of-the-art performance on the RealEdit benchmark and we introduce MultiLingualEdit, a multilingual extension with handcrafted editing examples across all 13 supported languages.
Setup: Each sample below was produced by editing the transcript of an original speech recording and regenerating the modified segment. The target transcript shown is the desired output after editing. We compare our model (MuSE) against VoiceCraft-X (and VoiceCraft for English).

English

Original transcript
Not everybody agrees that globalisation is progress
Original
Target transcript
"Not everybody agrees that globalisation is actually truly progress"
MuSE (Ours)
VoiceCraft
VoiceCraft-X
Original transcript
and the moon is already out, looking pale towards the sunset.
Original
Target transcript
"And the moon is already out this unimaginably beautiful afternoon, looking pale towards the sunset"
MuSE (Ours)
VoiceCraft
VoiceCraft-X

German

Original transcript
darum ist bei allem was man im fernseher sieht oben unten und an den seiten der rand abgeschnitten
Original
Target transcript
"Darum ist bei allem, was man im Fernseher sieht, der Rand abgeschnitten."
MuSE (Ours)
VoiceCraft-X
Original transcript
etwa zehn minuten bevor sie beim zweiten anflug landen sollte verschwand sie
Original
Target transcript
"Etwa zehn Minuten bevor sie landen sollte, verschwand sie."
MuSE (Ours)
VoiceCraft-X

French

Original transcript
Et d'autre part, la beauté de la Terre qui est habitable.
Original
Target transcript
"Et d'autre part, la beauté incroyable de la Terre qui est habitable."
MuSE (Ours)
VoiceCraft-X
Original transcript
Et y avait absolument rien qui pourrait les en dissuader.
Original
Target transcript
"Et y avait peu de choses qui pourraient les en dissuader."
MuSE (Ours)
VoiceCraft-X

Spanish

Original transcript
En el Museo del Prado se conserva un retrato de dama.
Original
Target transcript
"En el Museo del Prado se conserva un retrato de una joven dama."
MuSE (Ours)
VoiceCraft-X
Original transcript
Se encuentra ubicado en la costa norte de la isla.
Original
Target transcript
"Se encuentra en la costa norte de la isla."
MuSE (Ours)
VoiceCraft-X

Italian

Original transcript
così de latto suo per gli occhi infuso nellimmagine mia il mio si fece e fissi gli occhi al sole oltre nostruso molto è licito la che qui non lece alle nostre virtù mercè del loco fatto per proprio dellumana specie
Original
Target transcript
"Così de latto suo per gli occhi infuso nell'immagine mia il mio si fece e guardai direttamente al sole oltre nostr'uso. Molto è licito là che qui non lece alle nostre virtù, mercè del loco fatto per proprio dell'umana specie."
MuSE (Ours)
VoiceCraft-X
Original transcript
astro di sera deliziosa zuppa inte il mio passo in zuppa e dite canto oh zuppa canto al lastro di sera canto la tua bontà c vile zuppa
Original
Target transcript
"Astro di sera, zuppa calda inte il mio passo in zuppa e dite canto, oh zuppa canto al lastro di sera, canto la tua bontà, c'vile zuppa."
MuSE (Ours)
VoiceCraft-X

Portuguese

Original transcript
as pessoas não imaginam que paciência e compreensão também são fundamentais para os viajantes que estão voltando para casa
Original
Target transcript
"As pessoas não imaginam que paciência e compreensão também são fundamentais para os turistas que estão voltando para casa."
MuSE (Ours)
VoiceCraft-X
Original transcript
segundo informações ele estava na casa dos 20 anos em uma declaração bieber disse que embora eu não estivesse presente nem diretamente envolvido neste trágico incidente meus pensamentos e orações estão com a família da vítima
Original
Target transcript
"Segundo informações, ele estava na casa dos 20 anos. Em uma declaração, Bieber disse que, embora eu não estivesse diretamente envolvido neste trágico incidente, meus pensamentos e orações estão com a família da vítima."
MuSE (Ours)
VoiceCraft-X

Polish

Original transcript
bynajmniej lecz tylko myśmy ich nie widzieli dały nam dopiero o nich wiadomość udoskonalony instrumenta wieżaj mi lordzie
Original
Target transcript
"Bynajmniej, lecz nie widzieli. Dały nam dopiero o nich wiadomość udoskonalony instrumenta. Wierzaż mi, lordzie."
MuSE (Ours)
VoiceCraft-X
Original transcript
mrowisko jest bardziej wioską zamieszkałą przez rozmążoną rodzinę bardziej szczepem aniżeli państewkiem z władzą naczelną wobec takiej równości zastanawiającym jest faktem porządek panującyc h mrowisku
Original
Target transcript
"Mrowisko jest raczej dużą osadą zamieszkałą przez rozmażoną rodzinę, bardziej szczepem aniżeli państewkiem z władzą naczelna. Wobec takiej równości zastanawiającym jest faktem porządek panujący w mrowisku."
MuSE (Ours)
VoiceCraft-X

Korean

Original transcript
이처럼 배우자의 외도가 검은 머리가 파뿌리가 될 때까지 고락을 함께해온 노부부의 주된 이혼 사유가 되는 셈이다
Original
Target transcript
이처럼 성격 차이가 검은 머리가 파부리가 될 때까지 고락을 함께해온 노부부의 주된 이혼 사유가 되는 셈이다
MuSE (Ours)
VoiceCraft-X
Original transcript
한 잔의 커피가 소비자에게 전해지기 위해선 여러 차례의 공정을 거쳐야 한다
Original
Target transcript
한 잔의 맛있는 커피가 소비자에게 전해지기 위해선 여러 차례의 공정을 거쳐야 한다
MuSE (Ours)
VoiceCraft-X

Japanese

Original transcript
キミはスピリットについて旅人よりもよく知ってる。これがサンハジの遺物なら、もしものコトがあったとしても、キミならうまく対応できるハズ。
Original
Target transcript
キミはスピリットについて旅人よりもよく知ってる。これがサンハジの遺物なら、キミならうまく対応できるハズ。
MuSE (Ours)
VoiceCraft-X
Original transcript
水をマレーシアから買わなくてはならないのです。
Original
Target transcript
水を海外から買わなくてはならないのです。
MuSE (Ours)
VoiceCraft-X

Mandarin

Original transcript
今晚允许你在哪玩儿
Original
Target transcript
今晚到底允许你在哪玩儿
MuSE (Ours)
VoiceCraft-X
Original transcript
要不然皇军叫你死啦死啦的
Original
Target transcript
要不然老板叫你死啦死啦的
MuSE (Ours)
VoiceCraft-X

Community Datasets on Hugging Face

The following community-hosted datasets on Hugging Face were used in the multilingual-audio-alignments corpus. We gratefully acknowledge the creators of these resources.

Language Dataset Link
English Genshin Voice simon3000/genshin-voice
Gemini Flash Speech shb777/gemini-flash-2.0-speech
mrsunglass/clean mrsunglass/clean
French French TTS MUL AdrienB134/french-tts-mul
French Game Voice Lucari053/French_game_voice
Wolof French ASR Alwaly/wolof_french_asr
German ASR German Mixed flozi00/asr-german-mixed
Spanish LibriVox Spanish ciempiess/librivox_spanish
TEDx Spanish ciempiess/tedx_spanish
Composite Corpus ESEU HiTZ/composite_corpus_eseu_v1.0
CSZS ES-EN ky552/cszs_es_en
Spanish Audios sirekist98/spanish_Audios
Polish WolneLektury TTS datadriven-company/WolneLektury-TTS-Polish
Portuguese Portuguese TTS AdrienB134/portuguese-tts
Japanese JP Anime Speech joujiboi/japanese-anime-speech
Combined Japanese PlayMaker13/combined-japanese-dataset
Mandarin Free ST Chinese Mandarin urarik/free_st_chinese_mandarin_corpus
CN Dialogue 180k CJY/Chinese-Dialogue-180k
Taiwan Speech jungsanghyun/taiwanspeech
Russian Audio Data Russian kijjjj/audio_data_russian
Russian Audio Data Diana2di/russian_audio_data
Turkish Turkish Merge Audio Aynursusuz/Turkish-merge-audio
Khan Academy Turkish ysdede/khanacademy-turkish
Turkish Voice Dataset erenfazlioglu/turkishvoicedataset
Thai Processed Voice TH Porameht/processed-voice-th-169k

Note: Genshin Voice (simon3000/genshin-voice) is used for English, Japanese, and Mandarin.