DIGITAL AUDIO THEORY – LO3 – REPORT

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1: The Computer – Specification / components, peripheral bus systems and performance relating to the transfer of digital audio data

CPU Type: (Provide info & justification)

RAM Type and amount: (Provide info & justification)

Internal Hard Drive: (Provide info & justification)

Graphics Card: (Provide info & justification)

Local Bus Speed / Type: (Provide info & justification)

External Interface Busses: (Provide info & justification)

Digital Audio Bit-Rate: (Based on brief and External Bus type e.g. Firewire, Thunderbolt, USB 3.0)

2: The DAW – Specification / components, the hardware interfacing and interconnection protocols

The Computer: (Provide Manufacturer / Model & Justification)

The DAW Software: (Provide Manufacturer / Model & Justification & what it does)

The Audio Interface: (Provide Manufacturer / Model & Justification & what it does e.g. A to D & D to A conversion)

The MIDI Interface: (Provide Manufacturer / Model & Justification & what it does. Also if part of audio interface or not, or if direct USB connection to keyboard)

The Control Surface: (Provide Manufacturer / Model & Justification & what it does)

External Hard Drive: (Provide Manufacturer / Model & Justification & what it does)

3: System Diagram – With explanation of integration for music and audio production

Example:

MIDI Signal Path Integration: (Provide an explanation of how MIDI is integrated into the DAW e.g. trigger of Instrument Plug-Ins and/or External MIDI equipment)

Audio Signal Path Integration: (Provide an explanation of how Audio is integrated into the DAW e.g. mention use of plug-ins for altering the sound)

4: Storage Requirements – Based on requirements of the brief and in relation to other industry standard sampling frequencies and bit depth resolutions

The requirements based on the client brief are: (perform the calculation below and give an example of how many sessions could be stored on the external hard drive)

5: The Effects of Different Sampling Rates / Bit Depths – in relation to audio quality

Reference should be made to:

• What the sampling rate does and the effect of too low a rate
• Nyquist Theorem
• Sample rate and discuss Anti-aliasing and Reconstruction filters
• 16-bit or 24-bit and SNR
• Internal resolutions (within the DAW) and dither

6: Processing Requirements – For digital audio signals in relation to industry standard sampling frequencies, bit depth resolutions and data transfer rates

(Give a description of what impact the above mentioned criteria would have on the overall system processing. E.g. impact on processors, hard drive, software design, plug-in design, OS)