Export yours good mixed tracks to wav format with sample frequency at least 44,1 kHz, 24 bit (suggested is also 32bit float for better sound), you can use
also higher frequency of sampling rate, for example 48 (recommended) or 96 kHz.
- Do not use any compressor, limiter, expander or any dynamic processor on the main master track (stereo bus track)
- Give the record sufficient dynamic range and maximal headroom, at least 3 to 6 db.
- Do not clip or saturate signal, signal peaks should have highest volume - 0,5 db.
also do not clip or overcompress individual tracks.