When you cut a WAV or FLAC file, the cutter can simply copy the relevant PCM samples — no encoding or decoding required. The output is bit-perfect. For lossy formats like MP3 or AAC, true "lossless cutting" is complicated by the fact that audio is stored in compressed frames. A cut in the middle of a frame requires either decoding and re-encoding (introducing quality loss) or accepting a slight imprecision at the cut boundary. FFmpeg's stream copy mode cuts at the nearest frame boundary, which typically means a difference of a few milliseconds — imperceptible in practice for most content.
Cắt Audio
Cắt Audio Chính Xác
Cắt và chỉnh sửa file âm thanh chính xác. Đặt thởi gian bắt đầu/kết thúc. Hoàn hảo cho nhạc chuông và podcast.
Cắt chính xác ms
Nhiều định dạng đầu ra
Không mất chất lượng
Thả file của bạn vào đây
hoặc hoặc chọn file
MP3, WAV, FLAC, AAC, OGG, M4A • Xóa file sau 2 giờ
Start
End
Start time
:
:
—
End time
:
:
Đang chờ tải lên...
Chuyển đổi thất bại
Chuyển đổi thất bại
An toàn & Bảo mật
Xóa file sau 2 giờ
Xử lý nhanh
Không cần tài khoản
Cực Nhanh
How to Convert
Chuyển đổi bất kỳ file nào trong vài giây — không cần phần mềm, không cần đăng ký.
01
Tải lên
Tải lên file âm thanh
02
Chọn định dạng
Chọn định dạng đầu ra
03
Tải xuống
Nhận file đã chuyển đổi
Tại sao EasyConv
Why Use EasyConv
Professional-grade conversion with features designed for real-world workflows.
Kiểm soát chất lượng
Điều chỉnh cài đặt chất lượng.
Tạo Nhạc Chuông
Cắt 30 giây hay nhất của bất kỳ bài hát nào để tạo nhạc chuông tùy chỉnh cho iPhone hoặc Android — không cần phần mềm máy tính.
Chỉnh sửa Podcast
Xóa nhanh intro, outro hoặc đoạn im lặng không mong muốn khỏi tập podcast. Trích xuất đoạn phỏng vấn cụ thể mà không cần mã hóa lại.
Trích xuất từ Video
Tải lên file video để trích xuất và cắt đoạn âm thanh cụ thể — tuyệt vờii để lấy trích dẫn, hiệu ứng âm nhạc hoặc hiệu ứng âm thanh từ video.
Giữ Nguyên Định Dạng
File đầu ra sử dụng cùng codec âm thanh như đầu vào. Cắt WAV vẫn là WAV, MP3 vẫn là MP3 — không mất chất lượng do mã hóa lại.
Xử lý an toàn
File được xử lý an toàn và bảo mật.
300+ Định dạng
Supported Formats
Detailed breakdown of every format supported by this converter.
| Format | Description | Extension | Use Case |
|---|---|---|---|
| MP3 | Cut MP3 files with minimal re-encoding | .mp3 |
Ringtones, music clips, podcast excerpts |
| WAV | Trim WAV files with lossless precision | .wav |
Studio samples, sound design clips |
| FLAC | Cut lossless FLAC without quality loss | .flac |
Archival audio segments, hi-res clips |
| AAC | Trim AAC/M4A audio files | .aac |
iTunes music excerpts, podcast clips |
| OGG | Cut OGG Vorbis audio segments | .ogg |
Game audio loops, web audio clips |
| M4A | Trim Apple M4A voice memos and music | .m4a |
iPhone recordings, iTunes clips |
| MP4 (AUDIO) | Extract specific audio segment from video | .mp4 |
Film dialogue clips, video quotes |
3 Bước Đơn giản
Frequently Asked Questions
Everything you need to know about this conversion tool.
Use the format HH:MM:SS or simply seconds. For example, to start at 1 minute 30 seconds enter
1:30 or 90. Duration works the same way — enter 0:45 or 45 for a 45-second clip.
Minimal quality impact. For MP3 cutting, FFmpeg can use stream copy mode for near-lossless results. The cut point may shift slightly (by a few frames) to align to an MP3 frame boundary — this is imperceptible in practice.
Yes, as long as the file is under 500 MB. Long podcasts, audiobooks, and lecture recordings are all supported. Simply set the appropriate start time and duration for the segment you need.
Absolutely. For iPhone ringtones, cut your desired audio clip (max 30 seconds for a ringtone) and then convert the result to M4A using our M4A Converter. Rename the file to .m4r and add it to iTunes.
Set the start time to the point where real audio begins and leave the duration as the remaining length of the track. You can also use our Noise Remover for more advanced audio cleanup.
Yes — by default, the cutter outputs in the same format as the input file. If you need a different format, run the result through our Audio Converter.
12M+ người dùng tin tưởng
Who Uses This Tool
Real-world use cases from professionals across different industries.
Ngườii dùng iPhone
Create Custom Ringtones in 30 Seconds
Trim the perfect 30-second hook from any song, then convert to M4A (.m4r) for a fully custom iPhone ringtone with no apps required.
Podcaster
Extract Clean Interview Segments
Cut a specific answer or quote from a long recording to use as a standalone audio clip for social media or show notes.
DJ / Producer
Isolate Samples from Full-Length Tracks
Grab a specific drum break, melody riff, or sound effect from a long audio file and bring it into your DAW as a clean sample.
Educator
Clip Lecture Audio for Online Courses
Cut a full lecture recording into topic-based segments for a structured online course without re-recording anything.
Nhà sáng tạo video
Trim a Specific Scene's Audio
Extract audio from a video file and then cut to the exact scene dialogue or music cue needed for a separate edit.
Content Creator
Build Short Audio Previews and Teasers
Snip the most compelling 15–60 seconds from a podcast, song, or interview to share as an audio preview on social platforms.
Tại sao EasyConv
So sánh
Xem cách chúng tôi so sánh với các giải pháp khác
| Feature |
Our Tool EasyConv |
Desktop DAW | Other Online |
|---|---|---|---|
| Chất lượng | |||
| Không mất dữ liệu | |||
| Định dạng được hỗ trợ | |||
| Trích xuất audio từ video | |||
| Không cài đặt | |||
| Tương thích di động | |||
| Miễn phí |
Technical Specifications
Technical Specifications
Detailed technical information about our conversion engine.
Limits
- Max file size: 500 MB
- Time precision: HH:MM:SS.mmm
- Output format matches input
FFmpeg
Stream Copy
MP3
WAV
FLAC
AAC
Trim
Engine
FFmpeg 6.x · stream copy mode for lossless cuts
Chất lượng
No re-encoding for matching input/output formats; original quality preserved
Speed
Typical cut: 3–10 seconds regardless of source file length
Security
HTTPS transfer · isolated temp dir · auto-purged in 2 h
Precision
Millisecond accuracy
Re-encode
Only when format changes
Max File
500 MB
Auto-Delete
2 hours
Hướng dẫn đầy đủ
How to Cut Audio Files Precisely: A Practical Guide
Cutting audio files sounds simple, but the details matter. The difference between a clean cut and an artefact-riddled one often comes down to understanding how your audio cutter handles codec frames, re-encoding, and timing precision. This guide explains everything you need to know to get perfect results every time.
Stream Copy vs Re-Encoding: Why It Matters
Entering Precise Start Times
The time format for audio cutting is flexible. All of the following are valid inputs: 1:30 (1 minute 30 seconds), 90 (90 seconds), 01:30:00 (1 hour 30 minutes), 1:30.500 (1 minute 30.5 seconds). For ringtone creation, aim for a start time that catches the song at a musically strong moment — an intro riff, a chorus, or a recognisable hook — rather than the very beginning of the track.
Creating iPhone Ringtones with the Audio Cutter
iPhone ringtones must be 30 seconds or shorter. The workflow: (1) cut your desired clip with the Audio Cutter; (2) convert the result to M4A (AAC) using the M4A Converter; (3) download the M4A file and rename the extension to .m4r; (4) open iTunes or Music on a Mac, drag the .m4r file in, and sync your iPhone. The custom ringtone then appears in Settings → Sounds & Haptics → Ringtone.
Extracting Audio Clips from Video Files
Uploading a video file (MP4, MKV, MOV, AVI) allows you to extract a specific time range of audio. This is useful for pulling dialogue from a film scene, extracting a song from a music video, or grabbing a sound effect from a long video recording. The audio cutter decodes the audio stream, cuts the specified range, and returns it as an audio file — all in one step, saving the intermediate step of a full audio extraction followed by a separate cut.
Best Practices for Podcast Editing with the Audio Cutter
For podcast segment extraction, identify your in and out points by listening to the recording and noting timestamps. When cutting, add 0.5–1 second of buffer before and after the desired segment to avoid cutting into words at the edges. If you need to remove noise at the beginning or end of the clip, run the result through the Noise Remover after cutting. For final delivery, re-encode the cut segment to 128 kbps MP3 mono using the Audio Compressor.