soundcheck wrote: > I read the datasheet. Neither there you'll find warnings, nor you find > them on the HifiBerry site, nor you find them on IQAudio.
The codec driver was written with reference to that datasheet. It exposes as much as possible of the hardware capabilities. It isn't meant to come with warnings. Do this, don't do that..... soundcheck wrote: > > I'm not aware of any DAC manufacturer who'd offer a device where certain > user settings end up into malfunction units. > If you wan't "dumbed down", then buy "dumbed down". soundcheck wrote: > > The IQAudio guy realized that much earlier. That's why he limited the > volume control. Who seriously wants clipped audio, even though it's > offered as feature by the manufacturer. > I'm not going to answer that directly. Or the only thing I will point out, is that the other manufacturer (HiFiBerry) is also considering that not everything has been brickwall mastered to 0dbfs, and experienced users can apply gain in the digital realm without clipping. I also happen to agree, that dumbing it down for everyone, without a way to override that behaviour isn't a solution, which is why my most recent patch provides a way of the user getting the +24db gain from that Digital control, by giving a dt param. I'm not trying to criticise anyone, but what Gordon did, by hard coding 0db and not having a way to override for the user who knows what he is doing. ie. "experienced user", isn't the best way of dealing with things like this either. But it was the smart thing to do from his point of view, I suspect, to avoid dealing with inexperienced users who prefer to complain about things all day long, rather than understand how they work. soundcheck wrote: > > I'm pretty sure nobody really tested all this. That perfectly fits my > picture about the HifiBerry folks. Hey, what are the HiFiBerry folks actually guilty of? Daniel didn't even write the pcm512x codec driver. ISTR, that was mostly Mark Brown (who IIRC is employed by Linaro). The IQAudio and HiFiBerry cards are not the only consumer in the Linux kernel of the pcm512x driver. If you want someone to blame, blame me! My Pi farm and the testing I do is fairly well known. (Maybe not by you, but there is a reason that manufacturers provide me with hardware that hasn't yet gone on sale!) But my testing regimen for the PCM512x variants, is limited to checking all sample rates btwn 44k1 and 192k, with 16 and 24 bit source material, using 2 filters. a) FIR interpolation with de-emphasis b) Ringing-less low latency FIR Which are the two filters that are most commonly used.... You are not what I'd call the "average user". I think both you and I could agree on that and I think we should leave it there. I would suggest that whatever "comments" or "complaints" you have towards HiFiBerry, you take to their forum or email to them. ------------------------------------------------------------------------ JackOfAll's Profile: http://forums.slimdevices.com/member.php?userid=3069 View this thread: http://forums.slimdevices.com/showthread.php?t=97046 _______________________________________________ unix mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/unix
