Internal recording is the internal recording of the system. Simply put, the computer records the audio played by the computer. When recording internally, select the sound source as the output channel in the recording sound card to realize internal recording.

Software functions:

1, which can record the sound inside or outside the computer (such as the sound played by microphone, line input, Internet broadcasting or various audio and video playback software), and save the recorded files in digital audio formats such as WAV, MP3, WMA, M4A, etc., and permanently save them on the hard disk.

2. Support selective recording of multiple sound cards and different hardware ports.

Extended data:

Technical principle:

In fact, the sound principle of the speaker in the sound box is very simple, that is, through electromagnetic induction, the changing current is converted into the vibration of the basin membrane, thus generating the vibration of the air, and then the human ear will hear the sound. Therefore, as long as the frequency is within the acceptable range of the human ear and the current is strong enough to be input into the speaker, the human ear can obtain sound pressure within a close enough sound field distance, that is, hear sound.

Of course, in addition to speakers, multimedia active speakers also have current amplifiers, power amplifiers and other devices. The general function of these devices is to amplify the input current and power to the range where speakers can produce sound.

The function of the sound card on the computer is to buffer, process, shunt and convert the digital audio data from the CPU, and then transmit the analog signal carried by the current to the speaker through the audio interface to make it sound.

Baidu Encyclopedia-Recording Software