Sound quality
The lower the bit rate, the worse the sound quality of the compressed and recoded file. The audio bit rate is measured in kilobytes per second. To clarify what sound is, depending on its bitrate, the following table sheds light on this issue:
800 bps – 800 bps – minimum quality for voice to be recognizable.
8 kbps – 8 kbps – the quality of telephone voice transmission.
32 kbps – 32 kbps – AM quality.
96 kbps – 96 kbps – FM quality.
128-160 kbps – 128-160 kbps – quality standard.
192 kbps to 192 kbps digital streaming with DAB quality (digital audio streaming). Become the new standard for MP3 music. At the same time bitrate, only professionals can tell the difference in sound.
224-320 kbps – 224-320 kbps – quality close to CD quality.
1411 kbps – 1411 kbps – PCM audio format, similar to CD “Compact Disc Digital Audio”.
Of course, you must remember and understand that the sound will depend on one more characteristic of digital sound, such as the sampling frequency, which is responsible for representing the spectrum of the signal.
If we talked about each of the audio formats, we would be here all day. Of course, you have other responsibilities and a lot of music to produce. This is the best use for each of these formats. They take up a lot of hard disk space. For one simple reason: it has the best of both worlds.
They are compressed, which makes them easier to handle in terms of size. But they also offer a nice, rich sound. If you’re listening to streaming music, chances are you are. They are useful for transferring multiple files at the same time, navigating an entire directory, or quickly sharing and linking tracks.
8,000 Hz: telephone, enough to talk, Nellymoser codec;
1,025 Hz;
22,050 Hz – radio;
44 100 Hz – used on audio CD;
48,000 Hz – DVD, DAT.
96,000 Hz – DVD-Audio (MLP 5.1)
192,000 Hz – DVD Audio (MLP 2.0)
2822 400 Hz – SACD Super audio CD 5.1
The most common format, especially on the Internet, is MP3. It uses a compression algorithm in such a way that, while reducing the size of the data required to reproduce the recording and ensuring the quality of playback, the loss of sound quality is minimal. The file size depends on the compression ratio, so when you create an MP3 at an average bit rate of 128 kbps, the result is a file that is approximately 1/10 the size of the original CD-Audio file.
By the way, don’t forget any format.
Try and judge for yourself. Choosing the correct format depends on each context. So think about what kind of sound you are sharing and where you are sharing it. Are you using the correct format? So make smart decisions and use the correct format. Digital audio can be saved in various formats. Each of them corresponds to a specific file extension that contains it.
It is not an audio format itself, so its functions are described separately. There are a large number of audio formats. Typically, the format type matches the file extension. Certain types of files are assigned a specific codec. In simple terms, the format can be compared to a container in which a video or sound signal can be stored using a given codec. If you don’t know which program to use to open format or other audio, we recommend that you use our audio converter. It is compatible with almost all existing formats.
For comparison, I will give information about the Wav format, which supports high-quality sound. With a sample rate of 44100 Hz, its bit rate is 1411 kb / s and 1 minute of a file recorded in this format occupies approximately 10 m of hard disk space.
So what are the most common audio formats today?
This group of formats records and compresses audio in a way that preserves its exact original quality when decoded. In lossy compression, the sound undergoes some modification. For example, compression cuts audio frequencies that are not audible to the human ear. When decoded, the file will differ from the original in terms of the information stored in it, but it sounds almost the same.
