Roberts Radio iStream - Manual (Page 96)

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Audio codecs
Your radio supports a range of audio codecs which provide compatibility with a wide range of Internet Radio stations. These also allow users to stream
music from their computers or to play directly from USB flash memory devices.
Note that for any given audio codec, there are many streaming protocols available, and thus even if an Internet Radio station uses a supported format,
this does not guarantee that every such station will work with your radio. The radio stations database to which your radio connects is checked for
compatibility so that most stations should be playable without problems. Similarly when streaming media from a computer, while a codec may be
supported, there can be many subtle variations in formats, tagging schemes and protocols (even within UPnP). In general your radio will play the
supported formats with most common UPnP servers.
The following table summarises the maximum supported bit-rates for the various audio formats that are playable on your radio. Higher rates may be
playable in some cases but performance of the product may be affected.
Codec Maximum supported data rate
AAC (LC) 320 kbits/sec
FLAC (1) 1.5 Mbits/sec
LPCM (2) 1.536 Mbits/sec
MP3 320 kbits/sec
Real Audio 64 kbits/sec
WAV 1.536 Mbits/sec
WMA (3) 320 kbits/sec
All codecs support 2-channel (stereo) coded files only.
All codecs support sample rates up to 48 kbits/sec (includes 32 and 44.1 kbits/sec).
Files which have Digital Rights Management (DRM) protection applied will not be playable on your radio.
(1) 16 and 24 bit samples are supported in FLAC files.
(2) The maximum supported bit-rate is for 48 kHz sampling, 2 channels and 16-bits per sample.
(3) WMA Lossless, WMA Voice, WMA 10 Professional, and files which have DRM protection are not supported.