1:00 PM - 10/23/2002 by
Philippe Ramelet
The following results show the quality of Digifire 7.1 recording via the line-in/Mike-in stereo input. The input was of course configured in line-in. The test line was: DMX 6Fire 24/96 Stereo Out - Digifire 7.1 line in.
| Right Mark Audio Analyser Results | ||
|---|---|---|
| Bandwidth (40 Hz to 15 kHz), dB: | +0.02, -0.16 | Very good |
| Signal to noise ratio, dB (A): | -79.6 | Average |
| Dynamic range, dB (A): | 67.6 | Average |
| Total harmonic distortion, %: | 0.011 | Good |
| Intermodular distortion, %: | 0.045 | Good |
| Stereo crosstalk, dB: | -75.0 | Very good |
Digifire 7.1 also comes out pretty well at all levels in recording via the analog stereo input. The signal-to-noise ratio is not top rate but average at -79.6 dB.
| Bandwidth | Reponse |
|---|---|
| From 20 Hz to 20 kHz, dB | -0.55, +0.02 |
| From 40 Hz to 15 kHz, dB | -0.16, +0.02 |
| Parameter | Left | Right |
|---|---|---|
| RMS power, dB: | -67.2 | -78.6 |
| RMS power (A-weighted), dB: | -71.1 | -79.6 |
| Peak level, dB FS: | -51.6 | -66.2 |
| DC offset, %: | -0.00 | -0.00 |
| Parameter | Left | Right |
|---|---|---|
| Dynamic range, dB: | +63.4 | +75.4 |
| Dynamic range (A-weighted), dB: | +67.6 | +77.2 |
| DC offset, %: | -0.00 | -0.00 |
| Parameter | Left | Right |
|---|---|---|
| THD, %: | 0.015 | 0.011 |
| THD + Noise, %: | 0.073 | 0.024 |
| THD + Noise (A-weighted), %: | 0.057 | 0.023 |
| Parameter | Left | Right |
|---|---|---|
| IMD + Noise, %: | 0.205 | 0.045 |
| IMD + Noise (A-weighted), %: | 0.158 | 0.043 |
| Parameter | G <- D | G-> D |
|---|---|---|
| Crosstalk at 100 Hz, dB: | -66 | -47 |
| Crosstalk at 1 kHz, dB: | -74 | -57 |
| Crosstalk at 10 kHz, dB: | -65 | -59 |
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