class ToneGenerator
Defined at line 13 of file ../../src/media/audio/examples/tones/tone_generator.h
Generates a single channel of tone in FLOAT format.
Public Methods
void ToneGenerator (uint32_t frames_per_second, float frequency, float volume, float decay)Constructs a tone generator that produces a tone at |frequency| hertz.
A |volume| values in excess of 1.0 are likely to produce distortion.
|decay| specifies the factor by which volume should be reduced in one
second. A |decay| value of 0.0 produces a constant tone. A |decay| value
of 0.9 reducees the volume 90% (to 10%) in one second.
Defined at line 11 of file ../../src/media/audio/examples/tones/tone_generator.cc
void MixSamples (float * dest, uint32_t frame_count, uint32_t channel_count)Mixes |frame_count| samples into |dest|, summing the first sample into
|*dest|, the next into |*(dest + channel_count)|, etc. |channel_count| is
used for stride only. Only one channel of audio is generated.
Defined at line 19 of file ../../src/media/audio/examples/tones/tone_generator.cc
float volume ()Returns the volume, subject to decay.
Defined at line 28 of file ../../src/media/audio/examples/tones/tone_generator.h