hi, TI have reported that they have MP3 encoder on 5416 which runs 1.1 to 2.0 times faster than realtime, depending on compression settings. this of course tells nothing about the algorhythm used (psycho model, estimation, calculation precisions), but at least shows that *some* real-time MP3 encoding is possible.
also the '54x do 32bit arithmetic pretty well, since their accumulators are 40-bit. well, except for a little slower multiplication. perhaps to do such kind of thing on 5416, one will have to do quite a lot of hand-crafted optimized assembly routines. cheers, -- vladitx ----- Original Message ----- From: alexander lerch <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: John Hatton <[EMAIL PROTECTED]> Sent: Thursday, July 18, 2002 2:09 PM Subject: Re: [MP3 ENCODER] Fwd: LAME on a DSP? (fwd...mistyped address thefirst time) > Hi, > > I doubt that any complex encoding technology like MP3, AAC or > even MP2 will work on that 16bit-fixed point DSP. > Perhaps you will have more luck with ADPCM-like compression > methods, altough I would generally recommend 24-32bit fixed > point processors for high quality. > > > Regards, > Alexander > > > > ---------- Forwarded message ---------- > > Date: Tue, 16 Jul 2002 18:29:14 -0400 (EDT) > > From: John Hatton <[EMAIL PROTECTED]> > > To: [EMAIL PROTECTED] > > Subject: LAME on a DSP? > > > > Hello, I represent a group of poor students looking for an audio > > compression algorithm that will work for real time (or perhaps close to) > > encoding of an audio stream on a texas instruments 54xx series DSP (5416 > > being used for development). Are you aware of LAME being used for any such > > thing? > > > > Also, how would we go about getting LAME to work on a DSP if it hasn't > > been done before? None of us has any previous knowledge of audio > > compression or even the porting of applications from one architecture to > > another. I'm guessing it would be too much for us to do in addition to the > > rest of our project, but we are starting to run thing on options that do > > not involve paying somebody several thousand dollars. > > > > Thank You, > > John Hatton > > > > > -- > dipl. ing. > alexander lerch > > zplane.development > http://www.zplane.de > holsteinische str. 39-42 > D-12161 berlin > fon: +49.30.854 09 15.0 > fax: +49.30.854 09 15.5 > > _______________________________________________ > mp3encoder mailing list > [EMAIL PROTECTED] > http://minnie.tuhs.org/mailman/listinfo/mp3encoder _______________________________________________ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
