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创新声卡后续--自古以来的真相
发布日期:2008-03-30 23:22:39  稿源:

新闻来源:slashdot
在slashdot之前的帖子里,有网友指出了一些真相:简单的说:
SoundBlaster只是抄的一家美国公司的Adlib,不过加上了数字输出。但是这块卡很烂以致于在播放的时候几乎不能避免出现爆音。
SoundBlaster Pro与SoundBlaster 16不兼容。关于SoundBlaster 16,它的确能播放16位的音频文件,但是实际上它内部还是12位的,它的驱动将16位的音频转换成12位再送去解码。
AWE好一点,不过它只是做到了SB16应该做到但没有做到的事。但是它生不逢时,那时都快PCI时代了。而且AWE并不像创新市场部门宣称的那样具有64MIDI复音。

创新最初的PCI声卡很烂以致于97年的主板必须设置一个SoundBlaster链路来让这些卡工作。最终创新放弃了自己研发转而收购了另外一家公司,然后把自己的SoundBlaster商标贴了上去。

SoundBlaster Live!跟PCI2.1标准并不兼容。如果你不把BIOS里的PCI延迟通信(PCI delayed transaction)打开,计算机会不时蓝屏。在使用VIA的主板上还会造成磁盘信息丢失。

SoundBlaster Live! 24-Bit使用了SoundBlaster 16 时代一样的花招。

SoundBlaster X-Fi的Crystalizer技术实际上是一个24位的compressor,跟一些工作室使用的16位的compressor一样,compressor让声音显得更加生动和大声,代价是在高端设备上回放时保真度会下降。

最后要强调的是SoundBlaster X-Fi PCIe Xtreme Audio并不是X-Fi而是穿上新马甲的SoundBlaster Live!。。



原文如下:

The original SoundBlaster was basically a copy of the Adlib (a soundcard by a small American company) with digital output tacked on. Problem was the implementation was so broken it was impossible to play back audio without crackles and pops.

The Soundblaster pro was better, but that's not saying a lot. The fact that the follow up - the Sound Blaster 16 - was NOT Sound Blaster Pro compatible is a clear indication how murky the SB Pro's underpinnings actually were.

Speaking about the SoundBlaster 16. Despite what you may believe the SB16 is NOT a 16-Bit soundcard. It can indeed play back 16-Bit samples, but the drivers simply down converts them to 12-bits.

The AWE was better but it was basically what the SB16 should have been and the competition by this time made the AWE look silly - and that is not mentioning the rather dishonest 64 simultaneous channels claim their marketing department threw about.

Creative's first attempt at a PCI soundcard turned out so murky that 1997 era mobos have something called a "SoundBlaster link" to make them happy. Finally giving up Creative bought another company that had made a PCI soundcard and slapped the SoundBlaster brand on it. (SoundBlaster 16 PCI
.. or SoundBlaster 512, they had many names for it).

The SoundBlaster Live! was not PCI 2.1 complainant. If you somehow didn't know that you had to turn off PCI delayed transactions in the BIOS you would get blue screens every now and then. It also caused disk corruption on Via chipsets. Fun fun fun.

Since then the Live has been rebranded several times. They even spewed out a SoundBlaster Live 24-Bit that did the old SoundBlaster 16-Bit down sampling trick. How nice of them.

The SoundBlaster X-Fi is much nicer than the Live and the Soundcard I'm currently listening to. But beware, Creative is up to their old tricks even here. They talk a lot about their 24-Bit Crysalizer - for instance - but it is actually a 24-Bit Compressor similar to the 16-Bit compressors used by CD mastering studios. Like any audiophile can tell you a compressor helps cheepo speakers by making the sound a little more vivid and louder, at the cost of less fidelity on high end equipment.

Also note that the SoundBlaster X-Fi PCIe Xtreme Audio is not an X-Fi but a good 'ol SoundBlaster Live! in new clothes!
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