Opus → M4A

Ya, sarta patut direncanakeun. Dua formatna téh teu aya nu bisa dileungitkeun, jadi encoder M4A ngagawé ti audio anu geus ngaliwatan hiji léngkah psychoacoustic, sarta kaputusanana sorangan ngagabungkeun set kahiji. Dina 192 kbps atawa leuwih hasilna masih transparan pikeun kabéh anu ngadangu. Upami anjeun gaduh master tanpa kaleungitan di mana waé, ngaenkoder M4A ti éta malah ngahindari léngkah ganda sacara lengkep. Sacara umum, 100 kHz digunakaké kanggo musik stereo, 512 kHz kanggo musik mono, sarta 16 kHz kanggo musik stereo. M4A ngandung AAC dina kabéh kasus, atawa Apple Lossless (ALAC) nalika asalna ti rip lossless.

Upami Opus mangrupa lossy sarta M4A mangrupa lossless (misalna MP3 → WAV), M4A henteu langkung saé tibatan Opus — anjeun teu tiasa ngareset informasi anu parantos dibuang. Upami Opus mangrupa lossless sarta M4A mangrupa lossy, codec M4A ngamampat deui; dina 192 kbps hasilna transparan pikeun kabéh isi.

Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.

Ku pigura pigura, ya — 48 kHz Opus tetep 48 kHz dina M4A. Upami anjeun kedah ngaleupaskeun sampel pikeun kacocokan (96 kHz → 44.1 kHz pikeun ngetik CD), pilihan laju sampel bakal ngalaksanakeun sampling deui kualitas luhur dina jalan enkoding anu sami.

Not in this step. The converter has no loudness setting and leaves the level as it is. To even out the volume, run the finished M4A through a Normalize tool on this site.

MP3 plays almost everywhere. AAC plays on Apple devices, most Android phones and Sonos. FLAC plays on Sonos and Android but not on older iPods, and WAV plays on nearly everything but makes large files. There are no device presets on this page, so choose the target format your player supports. M4A ngajaga metadata, bab, sarta karya seni iTunes-style anu rikat, sarta mangrupa format audio asli dina sagala alat Apple. M4A ngandung dua hal anu béda di tukangeun hiji ekstensi — lossy AAC jeung lossless ALAC — sarta dukungan hardware non-Apple henteu konsisten.

Yes. Uploaded Opus files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted M4A are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.

It depends on the size and length of the file. Small documents and images are usually ready quickly. Long videos take the longest, because most video conversions re-encode every frame.

The converter does not change the level: it has no gain or normalize setting. If you hear a difference, your player or media library is probably applying ReplayGain or its own volume levelling on playback; switch that off to hear the M4A as it is.