New Delfina sound card

[Smack]

Hi Delfina fans.  ;-)
I just found these threads about the Delfina and thought I wanted to contribute some facts.

There are just two repaining bugs, one in delpfmpeg.device and the other in the delfina library. The first one has to do with Streamer web stream player, it tuirns out to be that using streamer with the delfina to play shoutcast streaming does not work for low frequencies, only at high freq (128 KHz +)

This is not a bug but a (missing) feature.
DelfMPEG and delfinampeg.device both support MPEG-1 audio streams only. That of course means that MPEG-2 streams are not supported. (see README file btw.)  So whats the point? One extension of MPEG-2 over MPEG-1 is lower frequency/lower bitrate - also known as MPEG-2 LSF (Low Sampling Frequency - 16, 22.05 or 24 kHz) - which is often used for low-bandwidth streaming.

The other bug in the delfina library is the freeze bug, a well known bug that causes mp3 players to freeze while playing...

Yes, that's a bug which has been in delfina.library for years. The "old" Delfina users (Lite, Plus, 1200) know it very well and unfortunately it is still not fixed yet so the "new" Flipper users get to know it, too. :-x
The hacked library that Dragster mentioned disables some parts of the code and avoids the "freeze". Hopefully Jens Schönfeld will be able to provide an official fix some time.


Michael Henke

[Smack]

PaSha wrote:
@all:
I just bought a second hand delfina plus. When playing mp3's with delfinampeg.device, I get noise and popping (generally low quality sound). With ppc decoding and AHI playback I have no problems. I never had any similar problems with my delfina lite, (which has been replaced by the delfina plus and moved over to another amiga, without problems).

If I remember correctly the discussions some years ago, the Delfina Plus boards with 32K DSP memory have some sort of hardware fault (incorrect memory mapping). It causes delfinampeg.device to produce noisy, "popping" output. I don't know if it is possible to workaround that with a software patch (delfina.library). The Delfina Plus with 128K memory and of course the new Delfina Flipper don't have this problem...

Michael Henke

[Smack]

@ Dragster

Hi Daniel.
My Amiga hardware is stored in some boxes in the basement now. I have no plans to revive my Amiga any time soon. It would take so much time to install the system again and all the software I used to use on a new hard disk, some of that stuff will probably be lost forever after the HD crash.  :-(
Anyway, I'm glad that I could release the software updates just in time... And it's good to see that Teemu and Jens Schönfeld are working on the bug fixes.

A bright, happy future awaits the Delfina users. Have fun!  :-D


Michael Henke