NGWave 3.5 - User Guide and FAQ

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Crash Recovery

• A Crash in NGWave itself
• Lockups, hangs, or crashes in your Operating System
• Power outages or interruptions

How does the Crash Recovery work?

• Full Undo and Redo History
• All Copy Buffers
• Saved Views in each Document

Frequently Asked Questions - NGWave

1. About the Digital Audio Basics.
   hen audio is Digitized, or Digitally Recorded, the audio data is sampled at regular intervals. The rate at which the audio level is sampled is called the Sampling Frequency, or Sample Rate. Each sample is then represented by a number that corresponds to the level of the audio at that point.
   
   Since the samples are stored as numbers rather than analog signal levels (like on magnetic tape), the stored sound can be reproduced very accurately. Moreover, once your audio is represented digitally, you can perform many effects and edits on the sound by simply manipulating those numbers in some way.
   
   A Compact Disc holds digitized audio that was sampled 44,100 times per second. Each sample is represented as a 16-Bit number, giving it 65,536 possible levels for each sample. The number of bits used to store each sample is referred to as the Bit Resolution.
   
   The more bits and the higher the sample rate, the higher the quality -- but the trade-off is that the audio will take more disk space and/or memory to store. CD-Quality audio in an uncompressed format takes approximately 10 megabytes per minute of audio. CD-Quality audio is generally more than acceptable as a final storage format. For editing raw material, however, one may wish to use higher sampling frequencies and more bits per sample, and later convert it down for the final product.