I have 10 wave tracks I would like to mix down to a single stereo MP3/wave file, how do I best do that? If I try to merge the tracks, I get a message that I don't have the codecs???
RB 2018 on HD
You would load the waves into a DAW such as Real Band or Sonar, and do the production stuff such as EQ, compression, volume envelopes, etc.... Then you export the mix to do the mix down. Since it's telling you that the codecs are missing..... not surprising, since most of the DAWs are not MP3 converters. You have to get some sort of MP3 converter and install it. Some are free and some are not.
My suggestion is to mix down to a WAVE file. Then.... export it and use an external wave editor such as WavePad by NCH to edit it and then convert it to MP3. No need to by the converter or hassle with installing it properly.