Bit rate from --aactomp3

Christopher Woods christopher at
Sun May 31 16:01:58 PDT 2015

On 31 May 2015 23:54:18 "Vangelis forthnet" <northmedia1 at> 

> [Slightly OT content!]
> On Sun May 31 17:16:28 BST 2015, Jim web wrote:
> > when I have had to transcode aac or mp3
> > I convert it to LPCM (wave) or flac
> > so I'm losing as little as possible.
> > In effect the result sounds like the source.
> > Has its flaws, but without additional damage.
> Could be highly impracticle though, at times... :-{
> I do own an old and cheap portable audio player,
> that can only cope with MP3 (has to be CBR),
> WMA & WAV; its internal Flash Memory is only
> 1GB, its write speed barely borders 1MBps.
> When flashaudio radiomode was available for
> roughly all BBC Radio, all was fine. Then
> National Radios changed to flashaac, flashaudio
> left only for Nations Radio (which was true until
> very recently, just before the Audio Factory changes...).
> I try to avoid transcoding as much as possible,
> so for National Radio I turned to the compatible
> wma radiomodes (which I downloaded via
> specialised software, not GiP, because mplayer,
> used inside GiP to dump wma, was very fickle...).
> Now the WMA modes are also gone, I have to either
> transcode flashaac radiomodes or - as you said -
> "bin" my otherwise working player...
> Transcoding (or decoding?) to WAV is simply
> out of the question for me, because either the huge
> file size of the uncompressed audio file would not fit
> inside the memory storage (a 3hr long programme
> would be > 1.5 GiB) and even if it would fit, it
> would take excrutiatingly long to transfer from my
> laptop at < 1MBps!...

For your setup I'd batch transcode (I'd do jt manually, but that's just me) 
to 64 kbps mono MP3 from the source files. That'll give you effective 128 
kbps "quality" with basically zero significant difference through the 
transcode. Not ideal, but probably the best you can do in your setup to 
accommodate your device.

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