SBPLAY(1) — NEWS-OS Programmer’s Manual

NAME

sbplay − play back sound files

SYNOPSIS

sbplay [ −v ] [ −d device ] [ −o level ] [ −outsel output ] file ...

DESCRIPTION

sbplay plays back the contents of Sony Multimedia format sound files supplied as arguments. Playback is made through an audio interface.

OPTIONS

−v specifies the name of the sound file currently being played back is displayed.

−d device
specifies the audio interface being used. If the −d option is not specified, /dev/sbe0 will be opened. If this fails, the device file /dev/sb0 will be opened.

−o outputlevel
specifies the output level. This value (∗1) can be from −32.0 dB to 0.0 dB in 0.5 dB increments. If not specified, the previous setting is used.

∗1This value can be from −8.0 dB to +8.0 dB in 2.0 dB increments on NWS-3100 series. The value 0.0 dB is always used when line output from the board is used with /dev/sbe0.

−outsel output
specifies the output select. The following options output are available. ∗2

sp Specifies built-in speaker as output.

kb Specifies keyboard speaker as output.

∗2NWS-5000 series only.

LIMITATIONS

NWS-3100 series does NOT support the following sound files;

Sound file of ADPCM.
Sound file of stereo.

And supports the following sampling frequency;

8000Hz

NWS-5000 series supports the following sampling frequency;

8000Hz, 16000Hz, 32000Hz, 9450Hz, 18900Hz, 37800Hz
11025Hz, 22050Hz, 44100Hz, 12000Hz, 24000Hz, 48000Hz, 44056Hz

The other NEWS support the following sampling frequency;

8000Hz, 9450Hz, 18900Hz, 37800Hz

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