Dial-up bitrate listening test
Reply #26 –
For RealAudio, we should probably test both RealAudio 8 Stereo Music (aka "cook") and the new RealAudio 10 codec (AAC-LC based).
The Real AAC codec doesn´t go below 64kbps, so the only codec that can be used at this bitrate (32 or 48 kbps) is cook (ok, there was dnet (DolbyNET, AC3 with low samplerate extension) once, but that codec isn´t featured anymore for years).
But still there are four flavors that could be used:
Flavor | Codec Bitrate Label | Freq Resp | Sample Rate
| | |
20 | 32 Kbps Stereo Music RA8 | 10.3 kHz | 22050 Hz
21 | 32 Kbps Stereo Music RA8 High Resp. | 13.8 kHz | 44100 Hz
22 | 48 Kbps Stereo Music RA8 | 13.8 kHz | 44100 Hz
23 | 48 Kbps Stereo Music RA8 High Resp. | 16 kHz | 44100 Hz