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Question: How much hard drive space does an audio recording take?

Answer:

At 16 bit 44.1 kHz, which is the CD standard, the rate is generally about 10 Mb per minute of audio recorded. Thus, an 800Mb file would be equivalent to 80 minutes of audio. The higher the resolution and sample rate of a recording, the more hard drive space is required. Here in detail are hard drive space requirements, depending on bit depth, sample rate and length of recording.

 

Disk Space Required to Store Digital Audio at Various Recording Resolutions

 
Bit Depth Sample Rate in kHz MB per track minute MB per Stereo Minute MB per 8-track minute MB per 16-track minute MB per 24-track minute MB per 32-track minute MB to record/master typical 4-minute song MB to record/master loaded 4-minute song Disk sustain rate MB/sec
16 44.1 5.0 10.1 40.4 80.7 121 161 363 969 3.4
16 48 5.5 11.0 43.9 87.9 132 176 396 1055 3.7
24 192 33.0 65.9 264 527 791 1055 2373 6328 22.0
24 48 8.2 16.5 65.9 132 198 264 593 1582 5.5
24 96 16.5 33.0 132 264 396 527 1187 3164 11.0
24 192 33.0 65.9 264 527 791 1055 2373 6328 22.0
32 192 43.9 87.9 352 703 1055 1406 3164 8438 29.3
24 384 65.9 132 527 1055 1582 2109 4746 12656 43.9
32 384 87.9 176 703 1406 2109 2813 6328 16875 58.6

Table courtesy of John Broadhead, Edirol Corp.

*Article courtesy of ThinkWare & Edirol Corporation North America.

Related FAQs:
Topic: Digital Audio Concepts
Category: Sound Cards
Category: Audio Editing & Mastering
Category: Sequencing & Multi-track Recording

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