When it comes to mixing audio, there are many techniques to achieve a polished and professional sound. Here are some tips to keep in mind:

1. Avoid over-compressing: Compression is a common technique in mixing, but it's important not to overdo it, as this can negatively affect the sound quality by reducing the music's dynamic range.

2. Keep space for each element: Every instrument or element should have its own place in the mix. Make sure each track has enough space in the frequency spectrum to be heard distinctly.

3. Use EQ to balance frequencies: Equalizers are an excellent tool for giving each instrument its own place in the mix by adjusting the frequencies. Make sure to use EQ subtly to avoid overly accentuating certain frequencies.

4. Use effects sparingly: Effects such as reverb and delay can give depth and dimension to the mix, but it's important to use them sparingly. Too many effects can make the mix too cluttered.

5. Think stereo: Use stereo to give space and depth to the mix. You can pan different elements to the left or right to create a sense of movement and dimension.

6. Mix at a low volume: Listen to your mix at a low volume to make sure all elements are audible. This can also help prevent ear fatigue.

7. Avoid conflicting frequencies: Avoid placing two elements in the same frequency spectrum, as this can lead to sonic conflicts. Try to place elements in different frequencies to avoid this problem.

8. Use low-pass and high-pass filters: Low-pass and high-pass filters are useful tools for reducing bass or treble on a track. Use them to eliminate unwanted frequencies and give each instrument its own place in the mix.

9. Use panning to create space: By panning different elements to the left or right, you can create space in the mix. Use this technique to give depth and dimension to your mix.

10. Avoid overproduction: Don't add too many elements to the mix, as this can make the sound too cluttered. Try to keep things simple and clear for a more effective mix.