Page 11 - Onboard Sound (RMAA 6.2.3) Analyzation
The Asus P7P55D-E Premium uses VIA's VT2020 10-Channel high definition audio codec. Marketed with Asus' Absolute Pitch BD192/24 and ENVY HD, it promises high fidelity output with Blu-ray decoding up to 24-bit/192kHz sampling rate. Its DTS Surround Sensation UltraPC technology is designed to enhance perceived sound performance. All in all, it seems to us that Asus has gotten much more serious when it comes to integrated audio performance on this motherboard -- historically speaking, Asus motherboards performed poorly on RMAA tests. Even the Asus Striker II NSE with its SupremeFX II sound module performed average at best. Since the onboard audio on Asus' P7P55D-E Premium supports 24-bit/192kHz, I ran RightMark Audio Analyzer to see how the system stacks up at its maximum sampling rate. Test details and result report is as posted:
Test Information:
Testing device: Speakers (VIA High Definition Audio)
Sampling mode: 24-bit, 192 kHz
Interface: DirectSound
Testing chain: External loopback (line-out - line-in)
RMAA Version: 6.2.3
20 Hz - 20 kHz filter: ON
Normalize amplitude: ON
Level change: -0.5 dB / -0.6 dB
Mono mode: OFF
Calibration signal, Hz: 1000
Polarity: correct/correct
Frequency response
From 20 Hz to 20 kHz, dB: -1.89, +0.03
From 40 Hz to 15 kHz, dB: -0.52, +0.03
Noise level
RMS power, dB: -94.6, -87.0
RMS power (A-weighted), dB: -96.0, -92.1
Peak level, dB FS: -60.8, -59.7
DC offset, %: -0.0, -0.0
Dynamic range
Dynamic range, dB: +94.7, +87.6
Dynamic range (A-weighted), dB: +95.9, +92.2
DC offset, %: -0.00, +0.00
THD + Noise (at -3 dB FS)
THD, %: +0.0177, +0.0201
THD + Noise, %: +0.0182, +0.0205
THD + Noise (A-weighted), %: +0.0234, +0.0265
Intermodulation distortion
IMD + Noise, %: +0.0177, +0.0203
IMD + Noise (A-weighted), %: +0.0114, +0.0127
Stereo crosstalk
Crosstalk at 100 Hz, dB: -87, -87
Crosstalk at 1000 Hz, dB: -89, -87
Crosstalk at 10000 Hz, dB: -90, -88
IMD (swept tones)
IMD + Noise at 5000 Hz: 0.0201, 0.0227
IMD + Noise at 10000 Hz: 0.0140, 0.0159
IMD + Noise at 15000 Hz: 0.0132, 0.0151
Test Summary:
Frequency response (from 40 Hz to 15 kHz), dB: +0.03, -0.52 - Good
Noise level, dB (A): -94.0 - Very good
Dynamic range, dB (A): 94.1 - Very good
THD, %: 0.019 - Good
THD + Noise, dB (A): -72.1 - Average
IMD + Noise, %: 0.019 - Very good
Stereo crosstalk, dB: -89.0 - Excellent
IMD at 10 kHz, %: 0.017 - Very good
General performance: Very good
Page Index
1. Introduction, Features, and Specifications
2. Bundle, Chipset, BIOS
3. A Closer Look, Board Layout, Test System
4. Benchmark: EVEREST CPU
5. Benchmark: EVEREST FPU
6. Benchmark: EVEREST Memory
7. Benchmark: PCMark Vantage
8. Benchmark: 3DMark06 Professional
9. Benchmark: PassMark PerformanceTest 7.0
10. Benchmark: SuperPI 1M, Cinebench R10
11. Onboard Sound (RMAA 6.2.3) Analyzation
12. Asus Express Gate Onboard Linux
13. Overclocking and Conclusion
