iFP895-StereoMic_L45

by John Beale July 11, 2006

Echo Audio Mia (+14 dBV) -> 40 dB attenuator -> iRiver iFP895
stereo 44kHz / 320kbps, mic input level at 45
pk.input = -26 dBV = 50 mV rms

Summary

Frequency response (from 40 Hz to 15 kHz), dB: +0.22, -1.17 Average
Noise level, dB (A): -81.9 Good
Dynamic range, dB (A): 80.8 Good
THD, %: 0.018 Good
IMD + Noise, %: 0.218 Average
Stereo crosstalk, dB: -29.6 Very poor
IMD at 10 kHz, %: 59.626 Very poor

General performance: Average


Frequency response

Spectrum graph


Frequency range Response
From 20 Hz to 20 kHz, dB -83.53, +0.22
From 40 Hz to 15 kHz, dB -1.17, +0.22


Noise level

Spectrum graph


Parameter Left Right
RMS power, dB: -79.5 -79.3
RMS power (A-weighted), dB: -81.9 -81.7
Peak level, dB FS: -60.5 -62.1
DC offset, %: -0.00 -0.00


Dynamic range

Spectrum graph


Parameter Left Right
Dynamic range, dB: +79.3 +78.9
Dynamic range (A-weighted), dB: +81.2 +80.8
DC offset, %: -0.00 -0.00



THD + Noise (at -3 dB FS)

Spectrum graph


Parameter Left Right
THD, %: 0.0176 0.0182
THD + Noise, %: 0.1474 0.1475
THD + Noise (A-weighted), %: 0.1574 0.1573


Intermodulation distortion

Spectrum graph


Parameter Left Right
IMD + Noise, %: 0.2253 0.2176
IMD + Noise (A-weighted), %: 0.1291 0.1292


Stereo crosstalk

Spectrum graph


Parameter L <- R L -> R
Crosstalk at 100 Hz, dB: -6 -6
Crosstalk at 1 kHz, dB: -29 -28
Crosstalk at 10 kHz, dB: -49 -48

IMD (swept tones)

Spectrum graph


Parameter Left Right
IMD + Noise at 5 kHz, %: 0.0551 0.0582
IMD + Noise at 10 kHz, %: 0.0520 0.0515
IMD + Noise at 15 kHz, %: 214.6804 178.7669


This report was generated by RightMark Audio Analyzer 5.5 on July 11 2006