File Conversion (Encoding) | << Prev / Next >>

From Windows standard PCM format (*.wav) to MPEG/Audio (*.mp?)
Click the [CONVERT] button and select [Encoding MPx] from [Single file] or
[Multiple files] menu.
When [Single file] is selected, MPEG file settings dialog will be displayed after
choosing an input WAVE file.
Then choose an MPEG output format and start converting.
When [Multiple files] is selected, the batch convert list will be displayed.
[Cancel] button stops the conversion.
NOTE: Please note that it takes a long time to complete the conversion process.

Convert Settings

[bitrate] | ... 14 types available(*1)
[Constant],[Variable] | ...
[layer] | ... layer-I, II, III
[mode] | ... Select [Stereo] or [Joint stereo] ... (You can select this when the source audio is 2ch)
[De-Emphasis] | ... Set emphasis type.
[Extention] | ... This is a private bit, and not used for ISO/IEC.
[CRC error protection] | ... Error detection ON/OFF.
[Copyright] | ... Select if the file is copyrighted.
[Original/copy] | ... Shows if the file is original or copied.
[Fast encode] | ... Increase the process speed by sacrificing the pricision ... to which calculation is carried out.
[Wave header] | ... Decide to add a header for Windows Fraunhofer ACM or not.

Batch Encoding
SCMPX can encode multiple wave files at once.
It processes files in the order listed in Batch convert List.
This is useful when you encode a large number of files. The encoded files are
output to the output path previously set. The output path can be changed by
first clicking the [Target] column title in the "Multiple files Batch converter"
window and then setting the new path. Click [Source] column to initialize
the normal output path. Also, you can change the output format by double clicking
the file name on the list.

[Add] | ... Adds a file to the encode list.
[Save] | ... Saves the encode list.
[Clear] | ... Clears the encode list.
[Exit] | ... Exits from the batch encoding process. If you click this button during ... the encoding process, it halts the whole encoding process. Before it halts ... encoding, confirming message appears.
[Start] | ... Starts the batch encoding process.

Variable bitrate
In MPEG-1/Audio layer-III two encoding methods are available: Variable Bit Rate (VBR)
and Automatic Bit Rate (ABR). VBR analyzes the input audio and encodes the bitrate
effectively. It improves the sound quality by allocating low bitrate for less important part
and high bitrate for more important part. ABR automatically allocates the most efficient
bitrate to the input audio.
To select the bitrate mode, choose [Variable] or [Auto] from the [bitrate] section in
the encode setting dialog box. The standard bitrates are around 48, 56, 64, 80 or 92kbps
per a channel for VBR and around 48 to 96bps per a channel for ABR.
# Note some players may not be able to replay data created in VBR/ABR mode.

(*1)
- IMPORTANT !!! -
If the bitrate is too low, the encoded audio will have audible distortion.
Bold faced bitrates or higher are recommended. The bitrate unit is x1000bit/s.

. | MPEG-1/Audio (48000, 44100, 32000Hz) | MPEG-2/Audio (24000, 22050, 16000Hz)
layer-I (stereo) | 32,64,96,128,160,192,224, 256,288,320,352,384,416,448 | 32,48,56,64,80,96,112, 128,144,160,176,192,208,224
layer-I (mono) | 32,64,96,128,160,192,224, 256,288,320,352,384,416,448 | 32,48,56,64,80,96,112, 128,144,160,176,192,208,224
layer-II (stereo) | 32,48,56,64,80,96,112, 128,160,192,224,256,320,384 | 8,16,24,32,40,48,56, 64,80,96,112,128,144,160
layer-II (mono) | 32,48,56,64,80,96,112, 128,160,192,224,256,320,384 | 8,16,24,32,40,48,56, 64,80,96,112,128,144,160
layer-III (stereo) | 32,40,48,56,64,80,96, 112,128,160,192,224,256,320 | 8,16,24,32,40,48,56, 64,80,96,112,128,144,160
layer-III (mono) | 32,40,48,56,64,80,96, 112,128,160,192,224,256,320 | 8,16,24,32,40,48,56, 64,80,96,112,128,144,160

<< Prev / Next >>