Does the subject want to ask, "Why is it not good to add audio clock sound?" It is caused by the imbalance of the volume of human voice audio and clock sound effect and the mismatch of the styles of human voice and clock sound effect.

1. The volume imbalance between the voice audio and the clock sound effect causes the voice to be covered by the clock sound effect, which sounds incongruous or discordant. In this case, you can try to adjust the volume balance between sound and clock sound effect to make them more harmonious.

2. The styles of voice and clock sound effects do not match, resulting in disharmony or unnatural feeling. In this case, you can try to choose a more harmonious sound effect or voice, or readjust the overall style of audio.