11.5

84 Functional overview
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The precision with which the A/D converter measures the analog signal is
determined by the sample resolution. The finer the resolution, the better the
digital transformation.
CD-quality audio recordings are recorded with a sample rate of 44.1 kHz and
16-bit resolution.
Recording source
First of all, the recording source must be connected to the sound card. There
are several ways to do this, depending on your equipment.
Microphone: Microphone signals must first be amplified before the sound card
modifier can record them. Most sound cards have separate microphone inputs
that pre-amplify signals, but the results are rarely professional.
Quality: Connection to an external mixer or external microphone amplifier
produces far better results.
Amplifier: If, for example, you possess a guitar amplifier that has a line-out
output, you can connect it with the line-in input on the sound card.
Stereo system: The stereo system’s amplifier usually has a separate line-out. If
instead, you see ”Aux. out sockets,” then you should use these. Connect them
with the input on the sound card (usually shown in red). Normally, a
high-fidelity (hi-fi) amplifier has cinch sockets and sound card mini-stereo catch
sockets. You must have the corresponding cable to connect these properly.
If the amplifier doesn’t have separate outputs (other than the loud speakers),
then you can use the headphones socket for recording. In this case, you need
a cable with two mini-stereo headphone connectors. This process has an
advantage: you can control the signal level through the phones input. The
disadvantage is that phones outputs are normally not very good. With cassette
recordings, always use the cassette deck line out. Record transfers often leave
you no other choice... Never connect a record player’s outputs directly to the
sound card, because the phono signal must be pre-amplified first. If you don’t
have a pre-amplifier, the only way to do this is via the phones output or an
external amplifier
Adjusting the signal
Digital recordings through the sound card need optimal control in order to
obtain the best sound quality.
Once the recording source is connected to the sound card, open the recording
dialog with the "Record" button and start the recording source.