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Topic: 16bit padded to 32bit or 24bit paddet to 32bit? (Read 4806 times) previous topic - next topic
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16bit padded to 32bit or 24bit paddet to 32bit?

When i play cd what to choose 16bit padded to 32bit or 24bit paddet to 32bit?

Seems to me that 16bit padded to 32bit .
rights I?

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #1 –
If your soundcard supports padded samples, then yes, 16 padded to 32 is your best choice.  Otherwise, just 16.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #2 –
Thank

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #3 –
BTW, what cards support padding, and to what values? Eg. sblive 5.1 ? (supports?)

On a general note where can I find such info.

Thanks.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #4 –
Quote
BTW, what cards support padding, and to what values? Eg. sblive 5.1 ? (supports?)

Afaik no sblive card supports padding, but I can be wrong .
One of those which support it for sure: Terratec DMX 6fire (24 bit padded to 32).

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #5 –
Is it that my card supports ##bit padded to 32bit if I have not encountered any problem by selecting this option?

Also, do I need to use dither [16 bit] if I listen CDDA? My card is Audigy1.

Thanks! 

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #6 –
Quote
Is it that my card supports ##bit padded to 32bit if I have not encountered any problem by selecting this option?

Also, do I need to use dither [16 bit] if I listen CDDA? My card is Audigy1.

Thanks! 

Use 16-bit fixed-point (no padding) with Audigy1.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #7 –
Quote
Use 16-bit fixed-point (no padding) with Audigy1.

Thanks! 

But is it that I should still use 16-bit w/o padding even though I use kX driver?
Also, anyone knows whether dither is necessary to CDDA + 16-bit fixed-pt?

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #8 –
Padding only makes sense with sample sizes that are not DWORD aligned, ie. 24 bits. Two 16 bit samples can fit into one DWORD, however, so PCI bus transfer should not be a problem. Besides, I don't think kX supports >16 bit formats yet. (Not sure any of the chips are even capable of it... anyone care to comment?)

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #9 –
If I use 16-bit padded to 32-bit + Kernel Streaming, EAX effect, eg Concert Hall, does *NOT* work.
If I use 16-bit dither + Kernel Streaming, EAX effect *DOES* work.
[My card is Audigy1]

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #10 –
Quote
I don't think kX supports >16 bit formats yet. (Not sure any of the chips are even capable of it... anyone care to comment?)

Basically, the EMU10k1/10k2 chip can't accept audio with bitdepth higher than 16-bit.
Audigy2 has a separate chip, added to 10k2, which takes care of frequencies between 48kHz and 96kHz, and 16 to 24 bits depth.
So, basically, this is some kind of "hardware hotifx" to Audigy, called Audigy2.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #11 –
Quote
Also, anyone knows whether dither is necessary to CDDA + 16-bit fixed-pt?

When playing 16-bit lossless formats, including cdda, dither is not necessary.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #12 –
Only if you do not change the volume either.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #13 –
True, I didn't take it into account.

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #14 –
I always set the vol lower than 0.00 dB, so I need to use dither.

Also, is it that if i use DSP, then I need to use dither [for cdda]?

thanks! 
 

16bit padded to 32bit or 24bit paddet to 32bit?

Reply #15 –
Quote
I always set the vol lower than 0.00 dB, so I need to use dither.

Also, is it that if i use DSP, then I need to use dither [for cdda]?

thanks! 

From theoretical/technical point of view it's good to use dithering if you're doing something to the samples (think of it as a kind of smart smoothing that reduces roundoff errors introduced in signal processing). But it's very unlikely that you'll really hear any difference between dithered and undithered sound (at least not at 16 bit or higher resolution).