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I just bought an old Joni Mitchell album (Hejira, eight bucks at HMV, amazing price) that came remasted in HDCD format. Apparently it's readable as 16 buit for normal CD players or 20 bit if your equipment supports it. Does anyone know of software like a Winamp plugin that will read the full 20 bits of data? I use a Winamp CD reader plugin that does digital extraction (as opposed to using the codec in the CD player and running a little analog wire to the sound card) - it would have to be something like that because I'm sure my CD drive doesn't support HDCD directly. |
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Nevar mind - the newer Windows media player supports it. Not surprising since they bought the company that created the HDCD format. |
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Wow. The extra 4 bits of data make a huge difference to the sound. I've heard before that 16 bit resolution is below what the human ear can detect and I guess it's true. The HDCD version definitely has smoother volume ramping - you can hear more variation in volume as a plucked guitar string resonates and fades. It's remarkable. Makes the music sound much fuller and real-er. Stop talking to yourself fleetmouse ok ok |
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you should check out dvd-audio. it can have 24 bit resolution and very high sampling frequencies / broad frequency range. björk's vespertine sounds much better than the cd version. |
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I wouldn't be surprised if 24 bit sounds even better than 20 bit. Though every time you add one bit you are effectively doubling the resolution so 20 bit is already 1,048,576 possible values. 24 bit is an insane 16,777,216 possible values. I suppose one use of that would be to assign more bit-depth to higher volumes, in effect creating more headroom for hotter signals. Though I'm no audio engineer so who the fuck knows. |
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Does any cdr drive can read hdcd format? |
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I think it has more to do with the software you're using - Windows Media Player, for example, uses digital extraction, same as Winamp, but Microsoft owns the HDCD spec so they built it into WMP. It reads the CD (through the IDE bus, not through the little wire that runs from the CD to the sound card) and detects that it's HDCD and uses that to decode it. The problem with HDCD is since Microsoft owns the spec they're not likely to give it away for free. Bit of a problem for open source and free projects. If it becomes "the" standard then every CD player and CD sold lines their pockets. I doubt there are any CDR drives that can directly decode HDCD into an analog signal. But there must be CD players that can do it. |
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i think beyond 24-bit we wont see a great improvement in sound quality....its the sampling frequency that should be upped....44.1KHz...a little too choppy for me....anything around the 100KHz mark coupled with 24bit should be awesome, but then we#ll need to start coming up with better ways of reproducing sound...and then a few years later maybe overcoming the physical hurdle of sound perception and be able to feed the brain 64-bit/192KHz audio directly...woo nice |
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the HDCD support is only on Windows XP platforms..which sucks. But whatever, i wont hear a difference and i have only one cd that's HDCD (Tool - Lateralus) |
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I think dvd-a can have sampling frequencies as high as 192 khz. |
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lateralus is hdcd?......mite see if i can find it in my mountain |
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can you encode it to 128kpbs mp3s for me please |
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