Unverified50% confidenceFactExact time
On an RTX 4060 Laptop (8GB VRAM), having the LLM actively pause and wait for TTS to synthesize sentence by sentence can eliminate audio playback stutter, at the cost of greatly extending the LLM's overall generation time (in testing, from about 12 seconds to about 54 seconds).
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50%
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Long-term
Relevance
10/16/2026
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Related Claims
UnverifiedTraditional TTS solutions require generating a complete audio file before playback, with latency typically ranging from several seconds to over ten seconds.78% similarUnverifiedWhen the TTS engine runs alone, generating 1 second of audio takes about 0.6 seconds (RTF about 0.6), but after sharing the GPU with the LLM, first-sentence synthesis time balloons to about 1.5 times its own length, whereas when the LLM is idle it takes only about 1.0 times.76% similarUnverifiedElevenLabs' released Eleven v4 Turbo has a median time to first audio (TTFA) latency of about 150 milliseconds in the official WebSocket benchmark tests.72% similarUnverifiedWhen current mainstream large models handle complex code tasks, the time to first token (TTFT) is often between 2 and 8 seconds.72% similarUnverified主流TTS方案如ElevenLabs、Azure Neural Voice和Google WaveNet的首字节延迟约为150-300毫秒72% similar
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