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Topic: Which Discman supports HDCD well? (Read 4531 times) previous topic - next topic
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Which Discman supports HDCD well?

 
I didn't know it....

Which Discman supports HDCD well?

Reply #1 –
I'm not aware of a portable CD player that supports HDCD. In fact, why would you want such a thing? For most listening environments (bus, car, etc) I wouldn't have a need for the extra fidelity.

Which Discman supports HDCD well?

Reply #2 –
HDCD is no more than a fancy dithering and noiseshaping system. If you think you 'need' a player that supports it, I urge you to take the MAD test to see just how inaudible the difference is.

Which Discman supports HDCD well?

Reply #3 –
I playback the HDCD on computer.(sb live digit,headphone:EM7)

Mediaplayer9 support HDCD well,quality of sound is better than foobar2000....

but ,I don't find a way to rip WAV as quality as HDCD.Although I can rip it as ISO files,but it's too large....

So,I want to buy a discman support HDCD,because no portable CD player  is too expensive....

Which Discman supports HDCD well?

Reply #4 –
Quote
Mediaplayer9 support HDCD well,quality of sound is better than foobar2000....

Please, read forum rule 8, take the MAD challenge, and come back when you still believe that (and are willing to demonstrate that it's true).

Fidelity above 16 bits is not generally audible except in extreme conditions. And that's especially true for HDCD as it's just a fancy ditherer.

Picking a certain diskman just because it supports HDCD is, well, stupid!

Which Discman supports HDCD well?

Reply #5 –
Quote
Mediaplayer9 support HDCD well

The only thing that we are sure is that WMP9 is able to detect HDCD and is displaying an HDCD logo.

Which Discman supports HDCD well?

Reply #6 –
One HDCD encoding option is to reduce the dynamic range, and store data on the CD about how to correctly reverse this process during playback. It allows the engineer to maintain the full 20-bits (or at least the lower ones which are actually in use!) during quiet passages. A real HDCD decoder will expand the dynamic range of this material on playback.

On such content, you should hardly need to ABX the difference (I assume - I don't have a HDCD player) - the level difference during the moments compression/expansion is applied would be obvious (assuming the none-HDCD and HDCD playback were level matched for at least the default level - this isn't normally done).

If you're listening to a portable in a quiet room, it could be advantageous to restore the correct dynamics. In typical use (i.e. noisy environment), it would be quite unhelpful!

Google doesn't know of an HDCD CD walkman, so I guess there isn't one.

Cheers,
David.

Which Discman supports HDCD well?

Reply #7 –
Quote
Quote
Mediaplayer9 support HDCD well,quality of sound is better than foobar2000....

Please, read forum rule 8, take the MAD challenge, and come back when you still believe that (and are willing to demonstrate that it's true).

Fidelity above 16 bits is not generally audible except in extreme conditions. And that's especially true for HDCD as it's just a fancy ditherer.

Picking a certain diskman just because it supports HDCD is, well, stupid!

I'm a fetish of Foobar2K........


I found some words.It says:in HDCD,only 14bits is decode on normal CD player....

I don't found any Discmans support HDCD too.....

money...........

Which Discman supports HDCD well?

Reply #8 –
I don't know about portable CD players, but there ARE portable DVD players that play HDCD.  For instance this one ( Initial DVD-9510 ):
http://www.walmart.com/catalog/product.gsp...A62055%3A106166
WARNING:  Changing of advanced parameters might degrade sound quality.  Modify them only if you are expirienced in audio compression!

Which Discman supports HDCD well?

Reply #9 –
Quote
I found some words.It says:in HDCD,only 14bits is decode on normal CD player....

No. The full 16 bits are used. HDCD works by inserting a control signal into the 16th bit at large intervals, that tell the decoder how to postprocess the output. Combined with dithering/noiseshaping, you get the equivalent of 19 bits accuracy (not 20 bits as often claimed).

This pushes the dynamic range to about 114 dB. Most real life soundcards have a dynamic range about equal to that, so it makes no sense to go for more.

But similar performance can be attained with normal dithering/noiseshaping, which is why I'd consider HDCD pretty useless: for a properly mastered CD there is basically no advantage.

Which Discman supports HDCD well?

Reply #10 –
Quote
I playback the HDCD on computer.(sb live digit,headphone:EM7)


True HDCD playback is not possible on an SB Live soundcard, because it resamples the digital stream from 44.1 to 48 kHz, destroying all the HDCD information.

Quote
but ,I don't find a way to rip WAV as quality as HDCD.Although I can rip it as ISO files,but it's too large....


ISO and Wav files should have the same size. Actually, the wav file should be 44 bytes bigger than the ISO.
When you rip an HDCD to WAV, the WAV you got is a faithful reproduction of the CD, it is an HDCD WAV file.

More info : www.hdcd.com

Which Discman supports HDCD well?

Reply #11 –
Quote
True HDCD playback is not possible on an SB Live soundcard, because it resamples the digital stream from 44.1 to 48 kHz, destroying all the HDCD information.

Are you sure? I thought HDCD decoding is done by WMP (= before resampling done by soundcard).

Quote
but ,I don't find a way to rip WAV as quality as HDCD.Although I can rip it as ISO files,but it's too large....

Maybe WMP refuses to recognise .wav files as HDCD (kind of 'copy protection'), only playback from CD works. Try this: rip the HDCD e.g. with EAC to one big .wav file + cue sheet, mount the .wav + .cue with some image mounting software as virtual drive and check if WMP recognises the virtual CD as HDCD on playback.
Let's suppose that rain washes out a picnic. Who is feeling negative? The rain? Or YOU? What's causing the negative feeling? The rain or your reaction? - Anthony De Mello

Which Discman supports HDCD well?

Reply #12 –
Quote
Quote
True HDCD playback is not possible on an SB Live soundcard, because it resamples the digital stream from 44.1 to 48 kHz, destroying all the HDCD information.

Are you sure? I thought HDCD decoding is done by WMP (= before resampling done by soundcard).

Dynamics HDCD processing must lead to more than 16 bits PCM. The SB Live only handle 16 bits.
Oversampling HDCD process leads to 88200 Hz sample rate, the SB Live doesn't handle this either.
In the old discussion about HDCD, someone pointed out that HDCD decoding could not be done in software, since HDCD defines the filter to be used by the DAC. But I wonder if this is not the 88200 Hz upsampling itself. Then with a 96/24 soundcard, this point should be moot, because the 48 kHz lowpass filter of the soundcard would not interfere with the 22.05 kHz one of the HDCD oversampling.

Which Discman supports HDCD well?

Reply #13 –
Quote
Quote
True HDCD playback is not possible on an SB Live soundcard, because it resamples the digital stream from 44.1 to 48 kHz, destroying all the HDCD information.

Are you sure? I thought HDCD decoding is done by WMP (= before resampling done by soundcard).

Quote
but ,I don't find a way to rip WAV as quality as HDCD.Although I can rip it as ISO files,but it's too large....

Maybe WMP refuses to recognise .wav files as HDCD (kind of 'copy protection'), only playback from CD works. Try this: rip the HDCD e.g. with EAC to one big .wav file + cue sheet, mount the .wav + .cue with some image mounting software as virtual drive and check if WMP recognises the virtual CD as HDCD on playback.

It's workable.
I meant the .cue too large. .wav could compressed to vbr mp3

Which Discman supports HDCD well?

Reply #14 –
Quote
It's workable.
I meant the .cue too large. .wav could compressed to vbr mp3

The cue file will be 2 or 3kb at most. Are you mistaking it for something else?

Which Discman supports HDCD well?

Reply #15 –
Quote
Quote
It's workable.
I meant the .cue too large. .wav could compressed to vbr mp3

The cue file will be 2 or 3kb at most. Are you mistaking it for something else?

.cue=.cue+.wav*n.....

I think I would buy a soundcard support 24bit encoding......

Thank all people.

Which Discman supports HDCD well?

Reply #16 –
Quote
Quote
Mediaplayer9 support HDCD well,quality of sound is better than foobar2000....

Please, read forum rule 8, take the MAD challenge, and come back when you still believe that (and are willing to demonstrate that it's true).

Fidelity above 16 bits is not generally audible except in extreme conditions. And that's especially true for HDCD as it's just a fancy ditherer.

Picking a certain diskman just because it supports HDCD is, well, stupid!

how  many people here have a 24-bit soundcard anyways? and can hear over the roar or din of their computers? i've gotten mine quieter than my G4-400, but the next upgrade would be a $100 or more PSU...  and/or alternate HSF/GPU cooling technologies ($300+)

Which Discman supports HDCD well?

Reply #17 –
Quote from: tigre,Jan 29 2004, 04:57 PM
Quote from: Pio2001,Jan 30 2004, 01:50 AM

Quote from: AndyLong,Jan 29 2004, 10:35 AM
but ,I don't find a way to rip WAV as quality as HDCD.Although I can rip it as ISO files,but it's too large....

Maybe WMP refuses to recognise .wav files as HDCD (kind of 'copy protection'), only playback from CD works. Try this: rip the HDCD e.g. with EAC to one big .wav file + cue sheet, mount the .wav + .cue with some image mounting software as virtual drive and check if WMP recognises the virtual CD as HDCD on playback.

i was able to do a CloneCD rip of it, or at least that's what WMP9 said (loaded it JUST for HDCD playback  ).. however, after a CD or two it stopped playing audio. i'm hoping all it takes to fix is a reboot, but i hate rebooting