Full introduction to ZT in Ogg format

From: http://bbs.imp3.net/thread-251659-1-1.html

Compared with the MP3 format released in 1990s,

Ogg format support is of great significance to MP3 digital music players: first, the memory space of digital music players is limited, while q0 (64 Kbps Bit Rate) the quality of the Ogg music format can be 1/2 kbps bit rate of the MP3 music format. It can fully meet people's daily appreciation requirements and save at least of the storage space. Secondly, the Ogg format of Q10 (500 kbps) quality is basically the same as that of lossless CD-level WAV format, and the size is only about 1/3 of that of WAV, it can completely replace the traditional CD Walkman. What is Ogg format? What are the features? How to obtain music files in Ogg format? Next let's take a closer look:
1. Know Ogg

Ogg is an advanced lossy audio compression technology named Ogg
Vorbis is a free open source audio format. The Ogg encoding format is far more advanced than the MP3 developed in 1990s. It can achieve better sound quality than MP3 at a relatively low data rate. In addition, Ogg
Vorbis supports two encoding modes: VBR (variable bit rate) and ABR (average bit rate). Ogg also supports bit rate scaling and can adjust the file bit rate without re-encoding.
Ogg format can be used to encode all audio channels. It supports multi-channel mode, unlike MP3, which can only encode dual-channel. Multi-channel concerts bring more sense of presence, and enjoy more advantages in movies and symphony. This revolutionary change is not supported by MP3. In the future, people will constantly improve their requirements for sound quality,
Ogg has more obvious advantages.
2. How to create an Ogg music file
Music files in Ogg format are not widely used. Generally, we need to convert them using CD or other formats downloaded from the Internet. First, we will introduce some knowledge about Ogg encoding. the bit rate options in Ogg encoding mainly include ABR, VBR, and quality. In fact, the bit rate of Ogg is variable. We recommend that you set the simple quality mode, can meet the requirements of most people.
The following lists the classification of quality and the corresponding bit rate:

The following describes common Ogg format conversion methods:
Conversion Software: foobar2000 + oggenc external Encoder

There are many ways to convert the Ogg format, but the simplest method is to use the foobar2000 + oggenc external encoder. Foobar2000 is very popular nowadays. It is a Windows
Apsaravideo player pro. Not only is the sound quality excellent, but also has powerful functions. Foobar2000 supports WAV, AIFF, VOC, AU, SND, and Ogg.
Vorbis, MPC, MP2, MP3, and other music formats, the plug-in also supports MPEG-4, AAC, FLAC, Ogg, FLAC, monkey "saudio, wavpack, speex, cdda, SPC and various mod types, I believe the supported types are enough. With the foobar2000 Conversion Function, other audio formats can be easily converted to Ogg formats.

The new foobar2000 version is v0.9.
Beta10, but unfortunately there is no Chinese version yet. The conversion from foobar2000 to Ogg requires Ogg external encoder support (oggenc). There are many Ogg external encoder versions available, and there are some slight differences in sound quality. If you are interested, you can download them at http://www.rarewares.org/ogg.html. The following describes the specific operation method. The conversion from APE format to Ogg is used as an example:

First Run foobar2000, open the ape file's song, select the desired track, and right-click to go to convert> convert
To... The menu will go to the output format selection menu, select the desired quality format, click OK, and save the location to start conversion.

If foobar2000 is used to convert the Ogg format for the first time, foobar2000 requires you to enter the path of the Ogg external encoder oggenc. EXE.


Foobar2000v0.9beta10 default Ogg conversion quality from Q-1 ~ Q7 provides eight files. If you want to convert Ogg/Q9 and Q10 quality files, you must add them on your own.


(Press Ctrl + P to enter the preferences menu, select the convert item, and select the output preset column/Add
New button to add a new output type)

(Figure 10: settings in the displayed CommandLine encoder settings form :)
In quick
Set "Custom" in the setup column. In advanced settings, change "-qxx" in parameters to the quality you want to set, such as Q9 or Q10. Do not change anything else. Display
The name can be changed to a name that is easy to remember. Click OK to save the settings, and you will be able to add support for Q9 and Q10 quality Ogg formats. The prerequisite for successful conversion is your oggenc. the version of the EXE encoder should be new enough. the command function of EXE can run oggenc in the DOS environment (CMD in 2000/XP environment. EXE
-H.

3. Select the appropriate Ogg encoding Quality
At present, a new generation of MP3 players have added support for the Ogg format, such as the power station c150 (Support Ogg/Q-1 ~ Q10 ). If you are buying a small-capacity version, we recommend that you use Ogg of Q2 and Q4 quality.
Q2-quality song files have a sound quality level of more than 1/4 kbps of MP3, while the file volume is more than. This is undoubtedly a good combination of sound quality and volume, suitable for most common users. In fact, even if the quality of q0 exceeds the WMA format using the same 64 Kbps bit rate, it is very close to the kbps bit rate MP3, And the 64 k wma sound quality cannot reach kmp3. If you are not very picky about sound quality, there is no problem with q0 quality.
Spectrum comparison:




For friends with high sound quality requirements, you can choose to use Q4 quality Ogg, Q4 quality Ogg file size and 128 K
MP3 is equivalent, and the sound quality exceeds the lame compression of 192 kbps/VBR
MP3, which is very attractive to users of digital players that support Ogg-you store more high-quality songs at the same capacity. For enthusiasts who want to use a digital player to achieve CD Walkman sound quality, the quality of Ogg Q10 is undoubtedly a blessing, in terms of spectrum, the Ogg of Q10 is basically the same as that of wav files. The size is only 1/3 of that of the latter, and the size of a 4-minute song is about 10 MB.

Before the birth of a digital music player that supports the Ogg/Q10 format, many friends who pay attention to sound quality do not catch a cold on the MP3 format-even ordinary people can hear the lossless CD audio tracks and the highest quality kbps bit rate MP3 sound quality difference. A new generation of high-quality MP3 files, such as c150, can be used with the Ogg/Q10 format to completely replace the CD Walkman. Q5 and Q6 have excellent sound quality and can reach 256 kbps.

The quality level above MP3 is also a good compromise between the sound quality and the volume. You can choose your own according to your individual needs.

Note: Ogg official documentation

Ogg Vorbis documentation