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fd_1574: should not send only whitespace to streaming tts engine (#1415)

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This commit is contained in:
Hoan Luu Huu
2025-10-31 07:59:25 +07:00
committed by GitHub
parent 30ab281ea2
commit 46d56fe546
1 changed files with 16 additions and 0 deletions
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16
lib/utils/tts-streaming-buffer.js
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@@ -278,6 +278,14 @@ class TtsStreamingBuffer extends Emitter {
}
const chunk = combinedText.slice(0, chunkEnd);
// Check if the chunk is only whitespace before processing the queue
// If so, wait for more meaningful text
if (isWhitespace(chunk)) {
this.logger.debug('TtsStreamingBuffer:_feedQueue chunk is only whitespace, waiting for more text');
this._setTimerIfNeeded();
return;
}
// Now we iterate over the queue items
// and deduct their lengths until we've accounted for chunkEnd characters.
let remaining = chunkEnd;
@@ -301,6 +309,14 @@ class TtsStreamingBuffer extends Emitter {
this.bufferedLength -= chunkEnd;
const modifiedChunk = chunk.replace(/\n\n/g, '\n \n');
if (isWhitespace(modifiedChunk)) {
this.logger.debug('TtsStreamingBuffer:_feedQueue modified chunk is only whitespace, restoring queue');
this.queue.unshift({ type: 'text', value: chunk });
this.bufferedLength += chunkEnd;
this._setTimerIfNeeded();
return;
}
this.logger.debug(`TtsStreamingBuffer:_feedQueue sending chunk to tts: ${modifiedChunk}`);
try {