Convertisseur Audio
将音频文件转换为MP3、WAV、FLAC等格式。
将音频文件拖放到此处
或 点击选择
Max 100 MB • MP3, WAV, FLAC, AAC, OGG, M4A
Publicité
具体结果
典型文件的真实压缩示例
之前 / 之后
之前
之后
60%
平均减小
8s
平均时间
按模式减小
“几秒钟内将我的 PDF 从 4 MB 减小到 1.2 MB。非常适合通过电子邮件发送！”
Free Audio Converter Online — Convert MP3 WAV AAC OGG FLAC
Convert between MP3, WAV, AAC, OGG Vorbis, FLAC and M4A in seconds. No software installation needed. Optimal quality settings applied automatically.
Which audio format should you choose?
MP3: the most universally supported format — compatible with every device, app, car stereo and platform. Best for general sharing and distribution. WAV: uncompressed, lossless — large files but perfect for professional audio editing, game audio, broadcast and any workflow requiring maximum quality. AAC: Apple's format — better sound quality than MP3 at the same bitrate. Default format for Apple Music, YouTube and most streaming platforms. OGG Vorbis: open-source, royalty-free — used in games (Unity, Godot), Linux applications and Spotify internal encoding. FLAC: lossless compressed — half the size of WAV with no quality loss. Ideal for archiving music collections. M4A: AAC audio in an MPEG-4 container — common for iTunes purchases and Apple device recordings.
Common conversion scenarios
MP3 to WAV: required by some DAWs (Digital Audio Workstations) and professional audio software that only accept uncompressed input. Note: does not improve quality. WAV to MP3: reduce large WAV files for sharing or uploading to platforms. FLAC to MP3: convert a lossless music collection to a portable format for devices with limited storage. AAC to MP3: convert Apple Music or iTunes files to the universally compatible MP3 for non-Apple devices. OGG to MP3: convert game audio or Linux-format files to a universally playable format.
FAQ
Does MP3 to WAV conversion improve quality?
No. MP3 compression is irreversible. Converting MP3 to WAV produces a larger lossless file that contains the same audio quality as the MP3 — not the original recording.
Can I convert a video file to audio (extract audio)?
Not directly in this tool. Use our Extract Audio from Video tool to pull the audio track from MP4, MOV or other video files.
What is the maximum file size?
Audio files up to 200 MB per conversion.
Does conversion change audio duration?
No. The audio duration is preserved exactly. Only the encoding format changes.
Is OGG Vorbis compatible with all devices?
No. OGG is widely supported on Android, Linux and modern browsers, but not natively on iOS/macOS or older Windows systems. For universal compatibility, use MP3 or AAC.
Can I convert multiple audio files at once?
Yes. Batch conversion is supported — upload multiple files and convert them all to the target format simultaneously.
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