FAQ: Difference between revisions
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This is a list of ''Frequently Asked Questions''. The questions are grouped according to their categories. | |||
Please note that this FAQ provides very short answers; explore the links to get deeper information. | |||
=General Audio Compression= | |||
;Does encoding preserves surround info? | |||
:'''Short Answer:''' MP3 destroys surround sound information. | |||
:In addition, check the following links: | |||
:* [http://www.hydrogenaudio.org/forums/index.php?act=ST&f=15&t=4639 Experience of a HA Member with Rear Channel] on the HA Forums | |||
;What is an ABX blind test? | |||
:Go see [[ABX]] | |||
:In addition, check the following links: | |||
:* [http://www.hydrogenaudio.org/forums/index.php?showtopic=16295& Blind Listening Test Explanation] on the HA Forums | |||
;Why not use graphs to compare codecs? | |||
:Nothing can be said about quality or audible difference by looking at pictures, because a [[lossy]] encoder works by removing as much inaudible sounds as possible. A lack of frequencies can well mean that some audible parts are missing (bad work, or too low setting), or that the encoder managed a very good compression, removing a lot of useless things. | |||
:In addition, check the following links: | |||
:* [[lossy|Lossy]] encoding | |||
:* [[lossless|Lossless]] encoding | |||
:* [http://www.hydrogenaudio.org/forums/index.php?showtopic=7834&st=0&p=77265&#entry77265 Confusion on CBR & VBR thread] on the HA Forums | |||
=MP3-related= | |||
;Why is joint stereo better than pure stereo ? | |||
:You better [http://www.hydrogenaudio.org/forums/index.php?act=ST&f=15&t=683 start here] (thread on the HA Forums) | |||
=Quality= | =Quality= | ||
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* Can I use [[frequency analysis]] or other tools to judge quality? | * Can I use [[frequency analysis]] or other tools to judge quality? | ||
* What are good test procedures? | * What are good test procedures? | ||
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Revision as of 19:33, 21 March 2006
This article is a stub. You can help the Hydrogenaudio Knowledgebase by expanding it.
This is a list of Frequently Asked Questions. The questions are grouped according to their categories.
Please note that this FAQ provides very short answers; explore the links to get deeper information.
General Audio Compression
- Does encoding preserves surround info?
- Short Answer: MP3 destroys surround sound information.
- In addition, check the following links:
- Experience of a HA Member with Rear Channel on the HA Forums
- What is an ABX blind test?
- Go see ABX
- In addition, check the following links:
- Blind Listening Test Explanation on the HA Forums
- Why not use graphs to compare codecs?
- Nothing can be said about quality or audible difference by looking at pictures, because a lossy encoder works by removing as much inaudible sounds as possible. A lack of frequencies can well mean that some audible parts are missing (bad work, or too low setting), or that the encoder managed a very good compression, removing a lot of useless things.
- In addition, check the following links:
- Lossy encoding
- Lossless encoding
- Confusion on CBR & VBR thread on the HA Forums
- Why is joint stereo better than pure stereo ?
- You better start here (thread on the HA Forums)
Quality
Simple
- What do I need to get started?
- What is transparency/cd-quality?
- What are the best formats?
- How do you tell what is the best format?
- What is ABX?
- Why is ABX needed?
- Transcoding - Can I increase quality by converting X lossy compressed file to Y lossy compressed file?
Advanced
- Can I use frequency analysis or other tools to judge quality?
- What are good test procedures?
This article is a stub. You can help the Hydrogenaudio Knowledgebase by expanding it.