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Easy Hi-Q Converter
by Roemer Software


Audio Conversion Output File Types and Quality Settings


There are nine different audio file formats that you can convert (output) to: MP3, WMA 9, OGG Vorbis, WAV, ADPCM, GSM 6.10, DSP Group TrueSpeech, VOX and MP2.

With all formats, higher quality settings will result in more disk space being used and with lower quality settings, less disk space is used.

Easy Hi-Q Converter is unique in the way that you select output formats. You can select more than one output file format at a time. Each file in the Conversion List will be converted to all of the formats that you select. Typically, audio converters will only allow one output format at a time.

There is an indicator to show which format the input file is currently being converted to. When all output types have been completed for the file, the process will repeat for the next file in the list.

To select output formats, click either the Options button or the Options menu item. Then, put a check-mark next to all of the file types that you would like to convert to. You can select anywhere from 1 to 9 formats at once
.




MP3, MPEG 1.0, layer 3
Compressed audio, space saving, high-quality format

If you select MP3, there are two types that you can select: Constant Bitrate, (CBR) or Variable Bitrate, (VBR). Constant bitrate is generally the most compatible type for many MP3 players. Variable bitrate automatically adjusts to the audio that's being converted and can sometimes be a more efficient use of disk space. But, VBR encoding is more intensive to perform. If you have an older, slower system, CBR is a better choice.

MP3, CBR
Click the drop-down list that shows bitrates and qualities to select the quality level and bitrate that you want. There are descriptions for many of the settings so that you can select "CD quality", "Low", etc. The higher the bitrate is, the higher the quality will be. You can also select Stereo or Mono. Lower bitrates are suitable for streaming or can be emailed more easily because they use less disk space.

MP3, VBR
Click the drop-down list to select the quality level that you want. In this mode, select the name for the quality level such as "Hi-Q (CD)", etc. Bitrates aren't listed because they are variable and the ranges will vary according to the sound that's being converted. You can also select Stereo or Mono.




WMA 9, (Windows Media Audio 9)
Compressed audio, space saving, high-quality format

Click the drop-down list to select the quality level, bitrate, kHz, CBR, VBR, Stereo or Mono. The WMA 9 format is the latest from Microsoft and also offers excellent quality in a compressed format. Designed primarily for the Windows Media Player but is supported in many applications and devices.

CBR is Constant Bitrate and VBR is Variable Bitrate.

48 kHz is Pro-Quality. 44 kHz is most commonly used and is CD Quality when higher bitrates are selected.




OGG Vorbis
Compressed audio, space saving, high-quality format

Click the drop-down list to select the quality level that you want. This is similar to MP3, VBR encoding. You can also select Stereo or Mono. This format also offers excellent quality in a compressed format.




WAV format, (.wav extension)
Non-compressed audio, high-quality format

The WAV format is actual CD quality when set to: 44100 Hz, 16 Bit, Stereo. The file sizes for this setting are about 10 times larger than the compressed formats above. You can select the frequency in Hz and quality from the drop-down list, (48000 Hz, 44100 Hz, 22050 Hz, 11025 Hz or 8000 Hz). (48000 Hz is recording studio quality which is above CD quality. This high level may be incompatible or not recognized by some players). You can also select Stereo or Mono and 16 Bit or 8 Bit.




ADPCM, (.wav extension)
Microsoft Adaptive Differential Pulse Code Modulation

Compressed audio, high-quality format

This is also a WAV format but is compressed. You can achieve very good quality with this format. The file size will generally be about 4 times smaller than a non-compressed CD quality WAV file. You can select the frequency in Hz and quality from the drop-down list, (44100 Hz, 22050 Hz, 11025 Hz or 8000 Hz). You can also select Stereo or Mono.




GSM, (.wav extension)
Microsoft Groupe Special Mobile, GSM 6.10

Compressed audio, good-quality format, (Mono only)

This is also a WAV format but is highly compressed. You can achieve good quality with this format. The file size will generally be about 19 times smaller than a non-compressed CD quality WAV file. You can select the frequency in Hz and quality from the drop-down list, (44100 Hz, 22050 Hz, or 8000 Hz). Mono only.




DSP, (.wav extension)
DSP Group TrueSpeech

Compressed audio, voice-quality format, (8000 Hz, Mono only)

This is also a WAV format but is very highly compressed. You can achieve low, voice quality with this format. The file size will generally be about 165 times smaller than a non-compressed CD quality WAV file. Available in 8000 Hz, Mono only.




VOX
VOX, Dialogic ADPCM

Compressed audio, voice-quality format, (8000 Hz, Mono only)

This format is very highly compressed. You can achieve low, voice quality with this format. The file size will generally be about 44 times smaller than a non-compressed CD quality WAV file. Available in 8000 Hz, Mono only.




MP2, MPEG 1.0, layer 2
Compressed audio, space saving, high-quality format


Almost the same as MP3 but is a slightly lower quality format. Popular with some Internet radio broadcasters. You can select the frequency in Hz and quality from the drop-down list, (44100 Hz or 32000 Hz). You can also, click the drop-down list that shows bitrates and qualities to select the quality level and bitrate that you want. There are descriptions for many of the settings so that you can select "CD quality", "Low", etc. The higher the bitrate is, the higher the quality will be. You can also select Stereo or Mono. Lower bitrates are suitable for streaming or can be emailed more easily because they use less disk space.





Clicking the Defaults button will set all nine conversion formats', quality and channels settings to their original values.





To see a list of all types allowed in Easy Hi-Q Converter for input, output and playing, please click here