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Document that the speaker re-encoded audio samples

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Jonathan Coates 2024-07-25 20:32:08 +01:00
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18
projects/common/src/main/java/dan200/computercraft/shared/peripheral/speaker/SpeakerPeripheral.java
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@ -273,16 +273,18 @@ public abstract class SpeakerPeripheral implements IPeripheral {
* Attempt to stream some audio data to the speaker. * Attempt to stream some audio data to the speaker.
* <p> * <p>
* This accepts a list of audio samples as amplitudes between -128 and 127. These are stored in an internal buffer * This accepts a list of audio samples as amplitudes between -128 and 127. These are stored in an internal buffer
* and played back at 48kHz. If this buffer is full, this function will return {@literal false}. You should wait for * and played back at 48kHz. If this buffer is full, this function will return {@literal false}. Programs should
* a [`speaker_audio_empty`] event before trying again. * wait for a [`speaker_audio_empty`] event before trying to play audio again.
* <p> * <p>
* > [!NOTE] * The speaker only buffers a single call to {@link #playAudio} at once. This means if you try to play a small
* > The speaker only buffers a single call to {@link #playAudio} at once. This means if you try to play a small * number of samples, you'll have a lot of stutter. You should try to play as many samples in one call as possible
* > number of samples, you'll have a lot of stutter. You should try to play as many samples in one call as possible * (up to 128×1024), as this reduces the chances of audio stuttering or halting, especially when the server or
* > (up to 128×1024), as this reduces the chances of audio stuttering or halting, especially when the server or * computer is lagging.
* > computer is lagging.
* <p> * <p>
* [`speaker_audio`] provides a more complete guide to using speakers * While the speaker accepts 8-bit PCM audio, the audio stream is re-encoded before being played. This means that
* the supplied samples may not be played out exactly.
* <p>
* [`speaker_audio`] provides a more complete guide to using speakers.
* *
* @param context The Lua context. * @param context The Lua context.
* @param audio The audio data to play. * @param audio The audio data to play.