How to express that the speaker sounds bad?

1. Tone: The difference in sound caused by the different composition of higher harmonics .

2. Positioning: the fixed position of the three-dimensionally distributed pronunciation devices in the sound space.

3. Sound field: the sum of the spatial relations formed by different sounds and their states .

4. Transient: The sound performance instantly bursts out the control of the sound.

5. Dynamic: The ratio of the change of sound intensity.

6. Feeling of air: the vibration level of various sounds in audio playback.

7. Resolution: the ability to sound the details of objects.

8. Image formation: the ability of audio playback to focus on audio and video.

9. Transparency: Whether the sound form is clear and easy to understand.

10. A sense of balance: whether the volume of the sound reproduced in the full frequency range is natural.