AAC Converter FAQ

AAC Converter is an ALL-IN-ONE audio converter that converts more than 90 audio and video files to AAC. The converter also supports batch conversion.

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AAC Converter converts more than 90 audio and video files to AAC, MP3, WAV, OGG, AMR, AWB, MP4, M4A, and M4B. You can follow instructions below to get started.

1. Click "Add File" to choose audio and video files;
2. Set target file format
3. Click "Convert" to convert file

For more detailed information, please click here.

The program supports the following files.

• Input Files: 3GP, 3G2, SWF, AAC, AIFF, AIF, AIFC, AFC, AMR, AWB, AU, SND, AVI, CDA, VOC, ADX, AC3, DTS, DV, DIF, VOB, DVD, CDATA, FLV, FLAC, M2TS, MTS, MKV, MKA, DVR-MS, MJPG, MJPEG, MMF, MOD, XM, IT, S3M, MTM, UMX, MO3, APE, APL, MAC, MIDI, MID, RMI, KAR, MP3, MPA, MPGA, M2A, MPG, MPE, MPEG, M1V, MP2, M2V, MP1, MLV, M4A, M4B, MP4, TS, M4V, MPV, PSP, MPC, MP+, MPP, NSV, NSA, NUT, OGG, OGA, OGM, OGV, OGX, MOV, QT, H261, H263, H264, 264, RA, RAM, RM, RMVB, SPX, TTA, DAT, WAV, WV, WMA, ASF, WMV, WM, WMD, XWMV, and YUV.
• Output Files: AAC, MP3, WMA, WAV, OGG, AMR, AWB, MP4, M4A, and M4B

Yes, it does.

1. Click "Add Files" to choose MP3 files;
2. Choose "to AAC"
3. Click "Convert"

1. Click "Add Files" to choose WAV files;
2. Choose "to AAC"
3. Click "Convert"

1. Click "Add Files" to choose WMA files;
2. Choose "to AAC"
3. Click "Convert"

1. Click "Add Files" to choose WMV files;
2. Choose "to AAC"
3. Click "Convert"

1. Click "Add Files" to choose OGG files;
2. Choose "to AAC"
3. Click "Convert"

1. Click "Add Files" to choose M4A files;
2. Choose "to AAC"
3. Click "Convert"

1. Click "Add Files" to choose MP4 files;
2. Choose "to AAC"
3. Click "Convert"

• Click "Add Files" to choose AAC files;
• Click "Options" -> "AAC Options" -> "AAC Encoding Parameters" section, set target encoding parameters such as sample frequency, bit rate, channels;
• Choose "to AAC"
• Click "Convert"

AAC Converter supports the following encoding parameters for AAC.

• Average Bit Rate (ABR): supports 16 kbps, 24 kbps, 32 kbps, 40 kbps, 48 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 144 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, and 320 kbps.
• Variable Bit Rate (VBR): supports quality value from 10 to 500. The bigger value, the better sound quality, and the larger file size.

And, the software supports the following advanced options for professional users.

• Use Temporal Noise Shaping (TNS): default value is OFF
• Allow Mid/Side: default value is ON
• MPEG Version: default value is MPEG4. The MPEG4 is recommended. As non-standard compliant players like QuickTime 6 only support MPEG4. However, Philips Expanium users should choose MPEG2. As their CD portable does not know MPEG-4 AAC files.
• Block Type: default value is "Both long and short"

The software supports the following encoding parameters for MP3.

• Sample Frequency: supports 8000 Hz, 11025 Hz, 12000 Hz, 16000 Hz, 22050 Hz, 24000 Hz, 32000 Hz, 44100 Hz and 48000 Hz.
• Bit Rate: supports 8 kbps, 16 kbps, 24 kbps, 32 kbps, 40 kbps, 48 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 144 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, and 320 kbps.
• Channels: supports joint stereo, stereo, and mono.

The software supports the following encoding parameters for WAV.

• Sample Frequency: supports 6000 Hz, 8000 Hz, 11025 Hz, 12000 Hz, 16000 Hz, 22050 Hz, 24000 Hz, 32000 Hz, 44100 Hz, 48000 Hz, 88200 Hz and 96000 Hz.
• Bits: supports 8 bits and 16 bits.
• Channels: supports mono and stereo.

The software supports the following encoding parameters for OGG.

• Sample Frequency: supports 8000 Hz, 11025 Hz, 12000 Hz, 16000 Hz, 22050 Hz, 24000 Hz, 32000 Hz, 44100 Hz and 48000 Hz.
• Bit Rate: supports 8 kbps, 16 kbps, 24 kbps, 32 kbps, 40 kbps, 48 kbps, 56 kbps, 64 kbps, 80 kbps, 96 kbps, 112 kbps, 128 kbps, 144 kbps, 160 kbps, 192 kbps, 224 kbps, 256 kbps, 320 kbps, 400 kbps, and 480 kbps..
• Channels: supports stereo, and mono.

AAC Converter supports the following encoding parameters for AMR.

• Bit Rate: supports 4.75 kbps, 5.15 kbps, 5.9 kbps, 6.7 kbps, 7.4 kbps, 7.95 kbps, 10.2 kbps, and 12.2 kbps.
• Enable DTX: Discontinuous transmission (DTX) is a method of momentarily powering-down, or muting, a mobile or portable wireless telephone set when there is no voice input to the set. This optimizes the overall efficiency of a wireless voice communications system. In a typical two-way conversation, each individual speaks slightly less than half of the time. If the transmitter signal is switched on only during periods of voice input, the duty cycle of the telephone set can be cut to less than 50 percent. This conserves battery power, eases the workload of the components in the transmitter amplifiers, and reduces interference. For more information about DTX, please click here.

AMR MP3 Converter supports the following encoding parameters for AWB.

• Bit Rate: supports 6.60 kbps, 8.85 kbps, 12.65 kbps, 14.25 kbps, 15.85 kbps, 18.25 kbps, 19.85 kbps, 23.05 kbps, and 23.85 kbps.
• Enable DTX: Discontinuous transmission (DTX)

Similar to AAC file except MPEG Version.

Sure. You need to set an option before converting.

1. For MP3: Click "Options" -> "MP3 Options" tab - > "Sound" section, check "Amplify / Reduce sound" and set a coefficient. The coefficient value is described below.
   • < 100% - Reduce sound
   • = 100% - No changes
   • > 100% - Amplify sound
   For example:
   
   • 50%: Reduce sound to half of original audio
   • 200%: Double sound of original audio
2. Output as OGG: Similar to MP3, just click "OGG Options" tab instead.
3. Output as WAV: Similar to MP3, just click "WAV Options" tab instead.
4. Output as AMR/AWB: Similar to MP3, just click "AMR Options" tab instead.
5. Output as AAC: Similar to MP3, just click "AAC Options" tab instead.
6. Output as MP4/M4A/M4B: Similar to MP3, just click "MP4/M4A/M4B Options" tab instead.

The AAC file is encoded with MPEG4AAC codec. The codec doesn't fix bit rate like MP3. The real bit rate used in target AAC depends on input sound. If MPEG4AAC encoder thinks it's possible to get the best quality by a lower bit rate than number user set, it use the lower bit rate to save space. What you care about is if sound quality loses. If the encoder think no needs to use 192 kbps, it just choose a best bit rate, which will get same quality and use less space.

The input format doesn't affect the bit rate; only real input sound affects. The bit rate probably aren't same with different files.

Yes, it is. You should check option "Transfer ID3 tag from source file" at "Options" -> "MP3 Options," "OGG Options," or "MP4/M4A/M4B Options" -> "ID3 tag" section.

AAC Converter supports ID3 tag of MP3 (ID3v1 and ID3v2), OGG, MP4, M4A, M4B, FLAC, APE, MPC, WMA, WMV, and ASF files.

Click "Options" -> "MP3 Options," "OGG Options," or "MP4/M4A/M4B Options" tab -> "ID3 tag" section and check "Add ID3 tag", and then click "Edit ID3 tag" button below to edit the custom ID3 tag information.

At "Title" field, if you check "Name as file name (not include extension)", the software will set Title as file name when converting. For example: original file name is "Happy New Year.ogg", and then the title will be set as "Happy New Year" automatically.

Yes, it is. You may click "Options" -> "Output Options" tab -> "Output Folder" section, choose "Specify output folder" at "Output Folder" combo-box and click "Browse" button to choose an output folder.

Yes, it is. Like question above, but you should check "Create folders according to path of source file", thus the program will create folders according to path of source file.

For example: Original file is "C:\Music\pop\test.aac" and output folder is "D:\Output." If the option is checked, the output folder will be "D:\Output\C\Music\pop."

First, split the left channel.

1. Set output channel to mono at MP3/WAV/OGG Options
2. Check "L channel" at Options -> General tab -> "If output channel is set to mono and the original file is stereo, output sound equals to"
3. Convert to MP3, OGG, or WAV

Then, split the right channel, similar to instructions above, just check "R channel" at step 2.

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You will receive an email confirming your order shortly after placing an order. Then, within 24 hours, you will receive the second email with your registration code, and instructions to get started!

Please send your additional questions to support@hootech.com.