midicnAudio & Music Production 中文

Choosing a Sample Rate

Sample rate sets the highest frequency you can capture, and the file size and workflow that follow.

The problem

Sample rate sets the highest frequency you can capture, and with it file size and processing load. 44.1, 48 and 96 kHz are not better or worse; they either match the job and workflow, or they do not.

Signal chain

The microphone signal passes through the preamp into the converter's anti-aliasing filter, then is sampled at the chosen rate. The converter's oversampling and filter design often matter more than the number on the session.

Placement and settings

Use 44.1 kHz for music releases, 48 kHz for film and video, and 88.2 or 96 kHz for heavy pitch shifting. Keep one rate for the whole project and avoid repeated conversion. Confirm the delivery requirement before mastering.

What to listen for

Compare material rich in cymbals and sibilance. At a low rate the top above roughly 15 kHz dulls first; at a high rate the edge survives repeated pitch shifts. The difference is subtle, so when you cannot hear it, choose by delivery format.

Common misconceptions

Listen in the library

latin · 118 BPM · beat 4/4C12:08拉丁打击乐里镲与沙锤的能量集中在高频,降采样先变钝DetailsCara sposa, amanta caraC11:40人声独唱,齿音集中在高频,采样率的选择在这里可听DetailsThe ClownC12:46钢琴与人声,高音区泛音密集,速率不足先失去光泽Details

All tracks from midicn-lib — inline badge is the license tier (C1 commercial / C2 non-commercial / C3 study only).

Sources

  • Pohlmann, Principles of Digital Audio, sampling and conversion chapters
  • AES recommended practice for sampling frequency and studio interchange

Used for fact-checking only; all prose is original.