MP3 - Codec settings
![MP3 - Codec settings](/en/help/media/image216.jpg)
Mode
Specifies whether the audio track is converted or copied.
Codec
Specifies which audio codec is used for encoding.
Language
Sets the language that the player displays when playing.
Delay(ms)
Sets the stream delay.
Sample rate
![MP3-Codec Sample rate](/en/help/media/image217.jpg)
Specifies the sample rate.
The higher the sample rate, the richer the sound. The values are between 8000 and 48000 Hz.
Rate control mode
![MP3-Codec: Rate control mode](/en/help/media/image219.jpg)
- CBR (Constant bitrate)
- VBR Default
- VBR Old
- VBR New
- VBR MTRH
- VBR ABR
CBR (Constant bitrate)
![MP3-Codec: Rate control mode CBR (Constant bitrate) Rate control mode CBR](/en/help/media/image224.jpg)
Bitrate
Sets the bitrate. A higher bit rate improves the sound quality but also increases the size of the file. Values are between 32 and 320 kbps.
VBR Default
![MP3-Codec: Rate control mode VBR Default Rate control mode VBR Default](/en/help/media/image222.jpg)
Minimum bitrate
Sets the minimum permitted bitrate. Values are between 32 and 320 kbps.
Maximum bitrate
Sets the maximum permitted bitrate. Values are between 32 and 320 kbps.
VBR Quality
VBR quality is denoted from 9 to 0, with 0 being the best.
- VBR 0
- VBR 1
- VBR 2
- VBR 3
- VBR 4
- VBR 5
- VBR 6
- VBR 7
- VBR 8
- VBR 9
Channels
![MP3-Codec: Channels Channels](/en/help/media/image223.jpg)
- Mono
- Stereo
- Joint Stereo (Analyzes the differences between the right and left channels and removes the duplications, allowing better compression.)
Quality
![MP3-Codec: Quality options](/en/help/media/image218.jpg)
- Normal(Q=5)
- Low (Q=9)
- High (Q=2)
- Voice
- R3Mix Preset
- Very high quality (Q=0)
- -alt-preset standard
- -alt-preset fast standard
- -alt-preset extreme
- -alt-preset fast extreme
- -alt-preset insane
- -alt-preset ABR
- -alt-preset CBR
Highpass (Hz)
- Set highpass filter cutoff below frequency
Lowpass (Hz)
- Set the lowpass filter cutoff above frequency