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Copyright (c) 2002 Classic Sound Limited
Mastering
 
Mastering follows on from the editing process. Again a sophisticated Sequoia-based digital audio workstation is used. Two main activities are done at this stage final audio processing and preparation of a Pre Master CD. Final audio processing typically includes trimming the beginning and end of each piece, inserting fade-ins/outs, adjusting the overall level of the pieces, and potentially addition of artificial reverberation using high quality  hardware and software - including Bricasti M7, Sequoia's Room Simulator and Altiverb from Audio Ease.
 
Sometimes other dynamics processing (multi-band compression and equalisation) may be needed to fix problems or to adjust the tonality and balance of sound - although for classical recordings such processing is used very sparingly if at all.
Once final audio processing is complete the pieces are sequenced into an agreed order and an appropriate amount of silence inserted between each. The final step is to produce a pre-master CD where ISRC, UPC and PQ code editing is performed and all tracks rendered to CD-R in accordance with the Red Book CD standard.  High quality sample rate reduction and dithering algorithms (e.g. POW-R) ensure that reduction from the high sample rate and bit depth used during recording down to the 44.1KHz and 16 bits required by the Red Book standard is performed as transparently as possible.
 
The end result is a professional pre-master CD-R that can be sent to a CD pressing plant if necessary for production of a glass master from which CDs can be made. Small CD-R based duplication runs of up to 10 copies can be handled in-house however larger runs and any associated artwork, including CD and case insert printing are contracted out.
Classical Music Recording and Post Production
Putting the class into Classical