Change Audio Speed

Speed up or slow down an audio file, 0.5× to 2× — in your browser.

Pilih fail audio

Speed up or slow down an audio file — 0.5× to 2×. Pitch changes with speed. Runs in your browser.

Klik untuk memilih, atau lepaskan fail di sini

Cara Change Audio Speed

1
Add your audio
Drop in the file.
2
Set the speed
0.5× to 2×. "Keep pitch" is on by default; untick it for the pitch-shift (nightcore) effect.
3
Apply and download
Click Change speed and save the result.

Related PDF tools

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Change Audio Speed — soalan lazim

Does the pitch change?+

Not by default. "Keep pitch" is on, which time-stretches the audio so a voice stays natural at any speed. Untick it to resample instead — then pitch moves with speed (the nightcore / slowed effect).

How far can I go?+

0.5× to 2×.

Is my file uploaded?+

No. It's processed entirely in your browser.

Why does "Keep pitch" sound slightly warbly?+

Time-stretching rearranges short overlapping grains of audio, which adds mild artefacts — usually fine on speech, more noticeable on busy music. Untick it for an artefact-free result with a pitch shift.

Adakah anda memuat naik fail saya ke pelayan?+

Tidak — setiap alat di sini memproses fail anda sepenuhnya pada peranti anda, dan tiada apa dimuat naik ke pelayan. Satu-satunya pengecualian ialah alat AI, yang menghantar teks yang diekstrak (bukan fail) ke Claude untuk melakukan kerjanya.

Adakah terdapat had saiz fail?+

Kami tidak mengenakan had buatan, tetapi kerana pemprosesan berlaku dalam pelayar anda, fail yang sangat besar (500+ MB atau 1,000+ muka surat) dihadkan oleh memori peranti anda, bukan oleh kami.