This information is for stream from a USB stick or from a UPNP server to most Grace Internet radios.
Mondo and Primo can support up to a 32G USB stick (no more than 2500 songs)
Tuner can support a 2TB USB up to 2500 songs and a 4G SD card up to 2500 songs.
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| Supported Codecs | Bitrates and Sample Rates |
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| MP3 | YES | CBR: 16Kbps-320Kbps VBR: 16Kbps-320Kbps |
| MP3 Pro | NO | |
| Real Audio (spro) | YES | |
| Real Audio (cook) | YES | |
| Real Audio (atrc) | YES | |
| Real Audio (raac) | YES | |
| WMA9 Standard | YES | CBR: 48Kbps-192Kbps VBR: 40Kbps-75Kbps and 240Kbps-355Kbps |
| WMA9 Lossless | NO | |
| WMA9 Voice | NO | |
| WMA9 Pro | NO | |
| AAC | YES | CBR: 16Kbps-320Kbps VBR: 256Kbps |
| HE-AAC | YES | CBR: 16Kbps-320Kbps VBR: 256Kbps |
| WAV | YES | See sample rate section below. |
| AIFF | YES | See sample rate section below. |
| AU | YES | See sample rate section below. |
| FLAC | YES | See sample rate section below. |
| OGG Vorbis | YES | CBR: 45Kbps-400Kbps |
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Sample Rates
The radio supports the followng sample rates for AIFF, AU and WAV codecs:
8000Hz
11025Hz
16000Hz
22050Hz
32000Hz
44100Hz
48000Hz
88200Hz
96000Hz
The radio supports the following sample rates for FLAC:
8000Hz
11025Hz
16000Hz
22050Hz
32000Hz
44100Hz
48000Hz