C-Media 8738

RightMark Audio Analyzer test

Testing chain: External loopback (line-out - line-in)
Sampling mode: 24-bit, 96 kHz


Frequency response (from 40 Hz to 15 kHz), dB: +0.15, -2.86Average
Noise level, dB (A): -81.4Good
Dynamic range, dB (A): 81.2Good
THD, %: 0.039Good
IMD, %: 67.565Very poor
Stereo crosstalk, dB: -75.0Very good

General performance: Average

Frequency response

Spectrum graph

Frequency range Response
From 20 Hz to 20 kHz, dB-2.86, +0.15
From 40 Hz to 15 kHz, dB-2.86, +0.15

Noise level

Spectrum graph

Parameter Left Right
RMS power, dB:-76.8-76.9
RMS power (A-weighted), dB:-80.3-81.4
Peak level, dB FS:-64.8-64.8
DC offset, %:-0.07-0.02

Dynamic range

Spectrum graph

Parameter Left Right
Dynamic range, dB:+78.4+78.7
Dynamic range (A-weighted), dB:+81.2+82.0
DC offset, %:-0.07-0.02

THD + Noise (at -3 dB FS)

Spectrum graph

Parameter Left Right
THD, %:0.0390.070
THD + Noise, %:1.5781.576
THD + Noise (A-weighted), %:0.0850.123


Spectrum graph

Parameter Left Right
IMD + Noise, %:67.61667.565
THD + Noise (A-weighted), %:13.66413.700

Stereo crosstalk

Spectrum graph

Parameter L <- R L -> R
Crosstalk at 100 Hz, dB:-75-69
Crosstalk at 1 kHz, dB:-74-70
Crosstalk at 10 kHz, dB:-71-71

This report was generated by RightMark Audio Analyzer 4.0