oreillymj Wrote: > 1) The WAV only compressed from 59mb to 56mb when converted to flac. I > was expecting a much better compression ratio, based on a post by Sean > earlier saying that DTS files were padded with 0's. I was expected to > shrink the file by maybe 40-50%. BTW- the flac compression was set to > -8 (highest compression) I believe the DTS format used on CDs (which is what's used for that Diatonis file) is unpadded, so the compression wouldn't necessarily be great. In fact, because it's not "real" audio, and therefore not the sort of thing FLAC is designed to compress well, you'd probably get worse results than on a normal WAV file.
With the WAV format I'm (still) trying to transform to, padding is introduced which the FLAC algorithms can compress well -- the final FLAC file ends up being a similar size to the original DTS file. > 2) The flac file would not stream to the SB2 without breakup. I'm not > sure what the problem is, but even though the reception of my 802.11g > network is 80-90% (and the SB2 was the only Wireless device on it), the > SB2 did not seem to be able to fill it's buffer quickly enough to keep > the music from breaking up. When I looked at the buffer fullness > indicator, it seemed that when the SB2 was paused , the buffer would > fill to 94%, then when I unpaused, the indicator dropped in steps of > 10% until the audio started to break up. > > Someone mentioned in another thread that the SB2 had 64mb RAM on board, > with 32mb used for buffering. If that's correct,I would have expected to > get at least 1/2 way into the file before breakup. The reality was that > I only managed 10-15 seconds at a time. I haven't tried it as a FLAC, but as a WAV I didn't have any problems. My SB2 is wired however, so my success doesn't necessarily mean much. I noticed something odd about the playback of one of my unsuccessful DTS WAV experiments earlier. This version is the one that produced perfect output for 5 seconds, then went quiet. I noticed that, during the silent part, if I moved up and down in the Now Playing list (just using the up/down arrows, not actually selecting anything to play) I'd hear a fraction of a second of sound. It was too brief to tell for sure, but I wonder if the sound I heard was the next piece of sound due when the silence began -- or if it was somehow unmuting the sound briefly at the position indicated by the player. (When this track goes quiet, the track progress indicator continues to increment.) Does anyone know what could explain this phenomenon? I don't see why moving through the playlist should change the sound output... I wonder if I placed a briefly higher load on the server every time I moved up or down, which in turn changed the rate at which the data was delivered to the player... I don't know, I'm just guessing now. It's beyond my epertise to diagnose. -- smst _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
