Difference between 320kbps & 128kbps sound track?
hello friends, what is the difference between 320kbps & 128kbps sound track ? will i get same quality output in the 2.1 speaker ?
- 10 years agoFavorite Answer
Brief about the MP3 file structure and bit rate
MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players.
The use in MP3 of a lossy compression algorithm is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio for most listeners. An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 11 times smaller than the CD file created from the original audio source. An MP3 file can also be constructed at higher or lower bit rates, with higher or lower resulting quality.
The compression works by reducing accuracy of certain parts of sound that are deemed beyond the auditory resolution ability of most people. This method is commonly referred to as perceptual coding. It uses psycho-acoustic models to discard or reduce precision of components less audible to human hearing, and then records the remaining information in an efficient manner.
Bit Rate and Audio Quality
In telecommunications and computing, bitrate (sometimes written bit rate, data rate or as a variable R or fb) is the number of bits that are conveyed or processed per unit of time. The bit rate is quantified using the bits per second (bit/s or bps) unit, often in conjunction with an SI prefix such as kilo- (kbit/s or kbps), mega- (Mbit/s or Mbps), giga- (Gbit/s or Gbps) or tera- (Tbit/s or Tbps).
Effects of bit rate on space and audio quality
When performing lossy audio encoding (compression process), such as creating an MP3 file, there is a trade-off between the amount of space used and the sound quality of the result. Typically, the creator is allowed to set a bit rate, which specifies how many kilobits the file may use per second of audio. Using a lower bit rate provides a relatively lower audio quality and produces a smaller file size. Likewise, using a higher bit rate outputs a higher quality audio, but also results in a larger file.
Files encoded with a lower bit rate will generally play back at a lower quality.
A few recommendation
If you have larger storage device like hard disk drives, then I would recommend to enjoy the sound quality with 320 kbps MP3 files, however for limited storage device like MP3 compatible mobile phones, I would recommend to go for lower bit rate MP3 files. If you have mobile device with greater storage or expandable memory, so nothing to worry to use MP3 files with higher bit rate.
Higher Bit Rate >> More Bits/Seconds >> More Sound Information >> Higher Sound Quality >> Greater Storage Space
Lower Bit Rate >> Less Bits/Seconds >> Less Sound Information >> Lower Sound Quality >> Lesser Storage Space
- 10 years ago
A 128Kbps track uses 128 Kilo Bits to Store and play 1 Second of music
A 320Kbps track uses 320 Kilo Bits to Store and play 1 Second of music
As the number of bits used increases, usually sound clarity also increases.
- 10 years ago
Well a 320kbps sound track will be of much greater quality than that of a 128kbps sound file.
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- VenuGLv 710 years ago
The sound coming out of a microphone or loud speaker is an analog signal. And computers can process only digital signal. The conversion of analog to digital signal is done by a process called PCM, short for Pulse Code Modulation. For this the analog signal is sampled and converted to a digital value ranging from 0 to 255. This sampling rate is referred here as 320 and 128 Kilo Bits Per Second. Incidently the windows native sound recording format is called Linear Pulse Code Modulation - LPCM - and the file created is a *.WAV file.
You will get better quality sound from the 320 KBPS sound track. The original recording should be 2.1 to get that effect while reproducing. Dolby sound is 5.1 channel. 5 speakers and a sub-woofer.
As somebody suggested here, googling will get you volumes of information.Source(s): Personal knowledge and internet
- Anonymous10 years ago
If you enjoy listening to music, u will enjoy listening to higher quality music, 320Kbps would be my recommendation, even with small computer speakers it will make a large difference :)
Hope that helps :)
- MaryLv 44 years ago
the difference is the quality of the sound, a higher bitrate makes a song sound more crisp and uses up a wider frequency. if you're not particular with quality, you can convert your songs to 96 kbps encoded in mp3PRO (mp3's minus the frequency that only dogs hear) to save space using the Old Launchcast player. but 128 kpbs is perfectly fine.
- Anonymous4 years ago
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As the previous answerer mentioned, the size and quality are the difference. The higher the bit rate, the better the sound. You'll notice the difference if you have a good headphones and if you're a real audiophile.