Tja... Don't touch this :d
Die Samplingrate wird nur einmal eingestellt. Wenn das Ziel eine CD ist, dann direkt auf 44,1KHz einstellen.
Wenn du Audio Material fürs Studio mit einem hohen Qualität einmal aufnimmst, dann lieber in 48KHz.
Die Pros haben sogar Karten bis 192KHZ ( je höher die Samplingrate, desto mehr Informationen werden gespeichert, aber auch mehr CPU Last und mehr Speicher).
Viele raten aber von 192KHz ab, weil die meisten doch ein Audio CD erstellen, und die Downsampling ist nicht mehr soo gesund für das Audio Material.
Das ist jetzt wirklich grob und salope erklärt.
Mehr Infos sind hier:
44,1KHZ: Audio CD, also most commonly used with MPEG-1 audio (VCD, SVCD, MP3). Originally chosen by Sony because it could be recorded on modified video equipment running at either 25 frames per second (PAL) or 30 frame/s (using an NTSC monochrome video recorder) and cover the 20 kHz bandwidth thought necessary to match professional analog recording equipment of the time. A PCM adaptor would fit digital audio samples into the analog video channel of, for example, PAL video tapes using 588 lines by 3 samples by 25 frames per second. Much pro audio gear uses (or is able to select) 44.1 kHz sampling, including mixers, EQs, compressors, reverb, crossovers, recording devices and CD-quality encrypted wireless microphones.[13]
48KHz: The standard audio sampling rate used by professional digital video equipment such as tape recorders, video servers, vision mixers and so on. This rate was chosen because it could deliver a 22 kHz frequency response and work with 29.97 frames per second NTSC video - as well as 25 frame/s, 30 frame/s and 24 frame/s systems. With 29.97 frame/s systems it is necessary to handle 1601.6 audio samples per frame delivering an integer number of audio samples only every fifth video frame.[7] Also used for sound with consumer video formats like DV, digital TV, DVD, and films. The professional Serial Digital Interface (SDI) and High-definition Serial Digital Interface (HD-SDI) used to connect broadcast television equipment together uses this audio sampling frequency. Much professional audio gear uses (or is able to select) 48 kHz sampling, including mixers, EQs, compressors, reverb, crossovers and recording devices such as DAT.
96KHZ: DVD-Audio, some LPCM DVD tracks, BD-ROM (Blu-ray Disc) audio tracks, HD DVD (High-Definition DVD) audio tracks. Most pro audio gear uses (or is able to select) 96 kHz sampling, including mixers, EQs, compressors, reverb, crossovers and recording devices. This sampling frequency is twice the 48 kHz standard commonly used with audio on professional video equipment.
192KHZ: DVD-Audio, some LPCM DVD tracks, BD-ROM (Blu-ray Disc) audio tracks, and HD DVD (High-Definition DVD) audio tracks, High-Definition audio recording devices and audio editing software. This sampling frequency is four times the 48 kHz standard commonly used with audio on professional video equipment.
Sampling rate
http://en.wikipedia.org/wiki/Sampling_frequency
Nyquist frequency
http://en.wikipedia.org/wiki/Nyquist_frequency