C-Media 8738

RightMark Audio Analyzer test

Testing chain: External loopback (line-out - line-in)
Sampling mode: 16-bit, 48 kHz


Frequency response (from 40 Hz to 15 kHz), dB: +0.14, -1.33Average
Noise level, dB (A): -81.6Good
Dynamic range, dB (A): 81.4Good
THD, %: 0.042Good
IMD, %: 8.881Very poor
Stereo crosstalk, dB: -74.3Good

General performance: Average

Frequency response

Spectrum graph

Frequency range Response
From 20 Hz to 20 kHz, dB-2.56, +0.14
From 40 Hz to 15 kHz, dB-1.33, +0.14

Noise level

Spectrum graph

Parameter Left Right
RMS power, dB:-79.8-81.0
RMS power (A-weighted), dB:-80.3-81.6
Peak level, dB FS:-68.2-68.3
DC offset, %:-0.07-0.02

Dynamic range

Spectrum graph

Parameter Left Right
Dynamic range, dB:+80.2+80.6
Dynamic range (A-weighted), dB:+81.4+82.0
DC offset, %:-0.07-0.02

THD + Noise (at -3 dB FS)

Spectrum graph

Parameter Left Right
THD, %:0.0420.074
THD + Noise, %:0.0560.085
THD + Noise (A-weighted), %:0.0490.106


Spectrum graph

Parameter Left Right
IMD + Noise, %:8.8819.056
THD + Noise (A-weighted), %:5.8735.979

Stereo crosstalk

Spectrum graph

Parameter L <- R L -> R
Crosstalk at 100 Hz, dB:-73-71
Crosstalk at 1 kHz, dB:-73-72
Crosstalk at 10 kHz, dB:-74-72

This report was generated by RightMark Audio Analyzer 4.0