ecrobot::Speaker Class Reference

NXT speaker class. More...

#include <Speaker.h>

List of all members.

Public Member Functions
	Speaker (void)
	Constructor.
void	playTone (U32 freq, U32 duration, U32 volume)
	Play a tone sound.
S16	playWav (const CHAR *file, U32 length, U32 volume)
	Play an 8bit monochrome PCM WAV file.
Static Public Attributes
static const U32	MIN_TONE_FREQ = 33
	Minimum frequency of tone.
static const U32	MAX_TONE_FREQ = 1976
	Maximum frequency of tone.

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Detailed Description

NXT speaker class.

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Constructor & Destructor Documentation

ecrobot::Speaker::Speaker

(

void

)

Constructor.

Parameters:

-

Returns:

-

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Member Function Documentation

void ecrobot::Speaker::playTone	(	U32	freq,
		U32	duration,
		U32	volume
	)

Play a tone sound.

Parameters:

freq	Tone frequency in Hz. MIN_TONE_FREQ to MAX_TONE_FREQ
duration	Tone duration in msec (10msec unit)
volume	Tone volume (0 to 100)

Returns:

-

S16 ecrobot::Speaker::playWav	(	const CHAR *	file,
		U32	length,
		U32	volume
	)

Play an 8bit monochrome PCM WAV file.

Parameters:

file	Head of a WAV file
length	Length of a WAV file
volume	Volume of WAV file (0 to 100)

Returns:

1:succeeded/0:sound resource was busy/-1:unsupported file format

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The documentation for this class was generated from the following file:

• device/Speaker.h