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发表于 2012-4-25 01:50
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本帖最后由 路遥plus 于 2012-4-25 02:09 编辑
看过国外的讨论: 可以的話,尽量勿用 USB 声卡。
另: V6.XX.XX 很专业,也狠贵
Gautau 发表于 2012-4-25 01:31
确实是这样,只是如果用NB做测试平台的话,不用USB也没招。我手上有下面这只USB声卡,指标还不错,但测试表现就麻麻地,不过本底噪声就很棒!条件允许还是用PC+独立插卡式声卡测试比较准确。
Creative Sound Blaster X-Fi HD 24-bit 96KHz USB Interface Sound Card
Technical Details
Audiophile-grade components deliver unsurpassed USB audio quality with a signal-to-noise ratio (SNR) of 114dB
THX TruStudio Pro is specially designed to bring the same great audio experience found in live performances, films, and recording studios - to the PC
Phono preamp with RIAA EQ allows direct connection of your turntable to convert your vinyl to CD or MP3
Gold plated connectivity for maximum signal quality and easily accessible front mounted headphone and microphone jacks with convenient volume control
Creative Media Toolbox software allows you to record, playback, cleanup and organize your digital music easily
======================================================================
而我用下面这只PCI 插卡式的声卡ASUS Xonar DG Audio,虽然价格只有上面那只USB的1/3不到(29刀/93刀),但出来的指标除了本底噪声稍逊,其他都全部赢过几条街
Technical Details
• Audio Performance: Output Signal-to-Noise Ratio (A-Weighted): 105 dB; Input Signal-to-Noise Ratio (A-Weighted):
• Frequency Response (-3dB, 24-bit/96kHz input): <10Hz to 48KHz; Output/Input Full-Scale Voltage: 1 Vrms (3 Vp-p);
• Audio Processor: C-Media CMI8786 High-Definition Sound Processor (Max. 96KHz/24bit); 24-bit D-A Converter of Digital Sources: 1x Cirrus-Logic
• 24-bit A-D Converter for Analog Inputs: 1x Cirrus Logic CS4245 (104dB DNR, Max. 192KHz/24bit);
• Analog Recording Sample Rate and Resolution: 44.1K/48K/96KHz @ 16/24bit; S/PDIF
• 103 dB; Output THD+N at 1kHz: 0.0025% (-92dB); Input THD+N at 1kHz: 0.0022% (-93dB)
• Analog Input Jack: 1x 3.50mm mini jack(Line-In/Mic-In); Other line-level analog input (for CD-IN/TV Tuner): Aux-In (4-pin header on the card)
• Bus Compatibility: PCI v2.2 or above bus compatible
• CS4245 (104dB DNR, Max. 192KHz/24bit), 1x Cirrus-Logic CS4361(103dB DNR, Max. 192KHz/24bit)
• Digital Output: 44.1K/48K/96KHz @ 16/24bit, Dolby Digital, DTS, WMA-Pro; ASIO 2.0 Driver Support: 44.1K/48K/96KHz @ 16/24bit
• Digital S/PDIF Output: High-bandwidth Optical Connector supports 96KHz/24bit, additional SPDIF-out header for HDMI audio output;
• Front-Panel Header: Supports headphone jack-detection, automatically switch audio output from back-panel to front
• High Fidelity Headphone Amplifier: Optimized for 32~150Ω; Analog Playback Sample Rate
• I/O Ports: Analog Output Jack: 3x 3.50mm mini jack(Front/Side/Center-Subwoofer);
• Operation System: Windows 7/Vista/XP/MCE2005; Accessories: 1x Low-profile Bracket; 1x Driver CD; 1x Quick Start Guide
• Resolution: 44.1K/48K/96KHz @ 16/24bit for all channels |
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