Cam 1: Llwythwch eich M4A ffeiliau gan ddefnyddio'r botwm uchod neu drwy lusgo a gollwng.
Cam 2: Cliciwch y botwm 'Trosi' i ddechrau'r trosi.
Cam 3: Lawrlwythwch eich ffeil wedi'i throsi AMR ffeiliau
M4A i AMR Cwestiynau Cyffredin Trosi
Pa ddidrad mae'r ffeil AMR yn ei ddefnyddio?
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A lossy AMR 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 AMR (WAV, FLAC) ignores the bitrate and keeps every sample.
A fydd mynd o M4A i AMR yn lleihau fy ansawdd sain?
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Os M4A yw AMR a AMR yw AMR, nid yw'r AMR yn well na'r M4A — ni allwch adfer gwybodaeth sydd wedi ei thorri'n barod. Os M4A yw AMR a AMR yw AMR, disgwyliwch i'r AMR codec ail-gywasgu; ar 192 kbps mae hyn yn dryloyw ar gyfer y rhan fwyaf o gynnwys.
A allaf drosi cannoedd o M4A ffeiliau i AMR?
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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.
A fydd y AMR yn cadw'r un cyfradd samplu â M4A?
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Yn rhagosodedig, ie (48 kHz M4A → 48 kHz AMR). Os oes angen i chi lawr-ddangos am gydnawsedd (e.e. 96 kHz → 44.1 kHz ar gyfer llosgi CD) mae'r dewisiad cyfradd samplu uwch yn gwneud hyn gydag ail-ddangos ansawdd uchel.
A allaf normaleiddio'r lefel sain yn y cam M4A i AMR?
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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 AMR through a Normalize tool on this site.
A fydd y AMR yn chwarae ar fy stereo car / iPod / Sonos?
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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.
A yw fy ffeil M4A yn breifat wrth drosi?
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Yes. Uploaded M4A files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted AMR are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Faint o amser mae trosi M4A 1 awr i AMR yn ei gymryd?
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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.
Pam mae'r ffeil AMR yn uwch / yn is na'r ffynhonnell M4A?
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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 AMR as it is.
A allaf drosi lawrlwythiadau llif M4A i AMR?
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Os nad yw'r lawrlwythiad M4A wedi ei ddiogelu (dim DRM), ie. Mae ffeiliau llif wedi eu cêl-ysgrifo gan DRM (Spotify, Apple Music) wedi eu cêl-ysgrifo ar lefel did ac ni allwn eu prosesu. Mae ffynonellau o Bandcamp, lawrlwythiadau SoundCloud, a recordiadau personol yn cael eu trawsnewid yn dda.
