Onkyo TX-SR309 USB Features, USB Device Requirements, Supported Audio File Formats

USB Features

USB Device Requirements

•USB mass storage device class (but not always guaranteed).

•FAT16 or FAT32 file system format.

•Each folder may contain up to 255 music files and folders, and folders may be nested up to 8 levels deep.

•USB hubs and USB devices with hub functions are not supported.

Supported Audio File Formats

For and playback from a USB device, the AV receiver supports the following music file formats.

Variable bit-rate (VBR) files are supported. (Playing times may not display correctly.)

■MP3 (.mp3 or .MP3)

•MP3 files must be MPEG-1/MPEG-2.5 Audio Layer 3 format with a sampling rate of 8 kHz, 11.025 kHz,

12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz and a bit-rate of between 8 kbps and 320 kbps. Incompatible files cannot be played.

■WMA (.wma or .WMA)

WMA stands for Windows Media Audio and is an audio compression technology developed by Microsoft Corporation. Audio can be encoded in WMA format by using Windows Media® Player.

•WMA files must have the copyright option turned off.

•Sampling rates of 32 kHz, 44.1 kHz, 48 kHz and bitrates of between 48 kbps and 320 kbps are supported.

•WMA DRM/Pro/Voice formats are not supported.

■AAC (.aac/.m4a/.mp4/.3gp/.3g2/.AAC/.M4A/

.MP4/.3GP or .3G2)

AAC stands for MPEG-2/MPEG-4 Audio.

• Sampling rates of 16 kHz, 22.05 kHz, 24 kHz, 32 kHz,

44.1kHz, 48 kHz and bitrates of between 8 and

320 kbps, are supported.

■FLAC (.flac or .FLAC)

FLAC is a file format for lossless audio data compression.

•Sampling rates of 32 kHz, 44.1 kHz and 48 kHz are supported.

•Quantization bit: 16 bit, 24 bit

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