pippin wrote: > 1. We should move this to a new thread. > 2. This is just plain wrong. > Replay gain (on the Squeezeboxes) works by multiplying each sample with > the gain value. I've seen the code. Not 100% sure about Transporter but > definitely in SqueezePlay based players and I also don't think the old > SB3 and Boom have analog volume control (Boom doesn't although it > potentially could, there's a volume/gain matrix for it). > Also, you can't do any correction in "the additional bits" because these > bits are in the -96db+ rande and I doubt you'd bother to do any replay > gain that faint. And if you don't want to get into rounding errors and > just bit-shift (which is _not_ what is happening) you'd have to change > volume in -3dB steps but that won't give you "even" volume. > > What is true is that with 24 bit resolution the rounding errors are in > the -<100dB range for any volume adjustments the Squeezeboxes do so one > can easily argue that it's not worth bothering about "bit perfect" but > that already applies to "normal" playback and volume control. > > On some systems gain (both replay gain and volume control) can be used > separate from the actual music info, under certain circumstances iPeng > is doing that (depending on the output hardware) but it's not what the > Squeezeboxes are doing and you can't do it with digital audio outputs > (SPDIF et al), I'm not 100% sure about USB audio (AirPlay does it, the > old iPod interface with the 30 Pin connector did it). This is usually > done _instead_ of moving to 24 bits.
It is a fact that almost all DAC's do not sound good with clipped signals. And this is what happens when recordings are mastered way to loud. Using replay gain you turn Down the heavy mastered recordings, and NO clipping comes to your DAC..... And it just sounds better.... It is very visable on my system. When playing a loudness recording the VU meters on the Transporter bangs to the buttom, and The clipping indicator on my Tact lights up all the time....... Turning on replay gain VU meters are max at 0 db and mostly wide under. And the clipping indicator never lights up. I rest my case....... I can see and hear what happens..... Callesoroe Living room: Transporter, Tact RCS 2.2X digital preamp, Martin Logan Vista speakers, AMPS(Icepower): Acoustic Reality Ear Enigma PLUS(PANELS), Acoustic Reality Ear TWO MKII(Bas) Kitchen: Transporter, Prodipe Pro 5 active bi-amp speakers. Bedroom: Receiver+UE boombox, Kids: Receiver+Active speakers, WIMP-HIFI flac streaming. http://www.last.fm/user/callesoroe ------------------------------------------------------------------------ callesoroe's Profile: http://forums.slimdevices.com/member.php?userid=22693 View this thread: http://forums.slimdevices.com/showthread.php?t=87364 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
