Céim 1: Uaslódáil do MP4 comhaid ag baint úsáide as an gcnaipe thuas nó trí tharraingt agus scaoil.
Céim 2: Cliceáil an cnaipe 'Tiontaigh' chun an tiontú a thosú.
Céim 3: Íoslódáil do chomhshó M4A comhaid
MP4 chun M4A Ceisteanna Coitianta maidir le Comhshó
Conas is féidir liom a bhaint as an fuaime ó MP4 comhad mar M4A?
+
Uaslódáil an comhad MP4 agus déanfaimid an rian fuaime a dhíchódú, ansin é a aistriú go M4A. Níl aon dara pas físe agus níl aon chaillteanas cáilíochta ann thar an méid a thugann an M4A CODEC féin isteach.
Cén giotánráta fuaime a úsáideann an comhad M4A?
+
A lossy M4A is encoded at 192 kbps by default. The Audio Quality setting also offers 320 kbps for the best quality and 128 kbps for a smaller file. A lossless M4A (WAV, FLAC) ignores the bitrate and keeps every sample.
An gcaillfidh mé cáilíocht fuaime ag dul ó MP4 go M4A?
+
Má tá M4A gan chaillteanas (WAV, FLAC), caomhnaítear gach sampla go díreach. Má tá M4A caillteach (MP3, AAC, OGG, Opus), déanann an CODEC M4A ath- chomhbhrú — ag 192 kbps tá sé seo trédhearcach do bheagnach gach ábhar. Ní féidir cáilíocht a bhí imithe cheana sa fhoinse MP4 a aisghabháil.
An bhfuil an M4A asbhainte ag coinneáil an ráta samplach bunaidh?
+
De réir réamhshocraithe, tá — éiríonn rian fuaime 48 kHz i MP4 ina 48 kHz i M4A. Má theastaíonn 44.1 kHz (cáilíocht CD) uait le haghaidh comhoiriúnachta le himreoirí níos sine, nochtann na hardroghanna liosta anuas le ráta samplála a athshamplaíonn le scagaire ardcháilíochta.
An féidir liom a bhaint fuaime ó comhaid MP4 il go M4A i mbaisc amháin?
+
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.
Cé chomh fada a thógann sé M4A a bhaint as comhad MP4?
+
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.
An féidir liom a bhaint ach cuid den MP4 fuaime mar M4A?
+
Ní sa uirlis seo amháin — bhaint an fhuaim iomlán mar M4A anseo, ansin úsáid / audio- trim / nó / audio- cutter / a ghearradh ar an chuid. Is é an cosán dhá- chéim níos tapúla ná oibríocht comhcheangailte toisc nach bhfuil muid a ath- díchódú an comhad ar fad faoi dhó.
An bhfuil mo MP4 comhad príobháideach le linn eastóscadh fuaime?
+
Yes. Uploaded MP4 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.
Cén fáth go bhfuil bearnaí ciúine ag mo chomhad M4A?
+
Usually the MP4 carries more than one audio track and the one that was converted is silent or secondary. The converter picks one audio track automatically, normally the main one, and this page has no setting to choose a different track. If the wrong one comes out, remux the MP4 with the track you want first (VLC or ffmpeg can do this) and convert it again.
An bhfuil an M4A asbhainte ag imirt ar steirió iPhone / Android / carr?
+
MP3 plays almost everywhere. AAC plays on Apple devices, most Android phones and Sonos. OGG and Opus need a recent player on iOS but play in Chrome, Firefox and VLC. There are no device presets on this page, so choose the target format your player supports.
