PsyTEL - Revision history

46.208.149.77: /* See Also */ ReallyRareWares dead link

2013-04-07T10:35:31Z

109.149.14.19: /* See Also */ ReallyRareWares old link, Strike Thru.

2012-10-20T15:07:28Z

See Also: ReallyRareWares old link, Strike Thru.

← Older revision		Revision as of 15:07, 20 October 2012
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	== See Also ==		== See Also ==
	* [[PsyTEL AACenc Guide]]		* [[PsyTEL AACenc Guide]]
	* [http://www.rjamorim.com/rrw/aacenc.html ReallyRareWares]		* <s>[http://www.rjamorim.com/rrw/aacenc.html ReallyRareWares]</S>

	[[Category:Software]]		[[Category:Software]]
	[[Category:Encoder/Decoder]]		[[Category:Encoder/Decoder]]

Pepoluan: Categories

2006-09-08T23:08:48Z

A Man Eating Duck at 13:42, 25 March 2005

2005-03-25T13:42:45Z

New page

The creation of Ivan Dimkovic (who now works on Nero AAC), PsyTEL AAC was one of the first AAC encoders. Its
multi-channel support has bugs that make it unusable, but it's 2 channel had the best quality available in its day.
Since the implementation of Nero AAC, this codec has become obselete. It's is now outclassed by both Nero AAC
and iTunes.

==Usability (Psytel aacenc/fastenc)==

; -tape
; -radio
; -internet
; -streaming
; -normal
; -extreme
; -archive
; -ultra

For music encoding. The quality ranges from -tape (lowest [VBR] quality) to -ultra (highest [VBR] quality). Ultra
is considered overkill for most audio tracks, i.e: shouldn't be used except for extremely difficult music signals.
Example: aacenc -extreme -if "audio file.wav"

==Encoder switches (Psytel aacenc/fastenc)==

; -if
: Input filename. The name of the track to be encoded (must be a .wav file)

; -of
: Output filename. May be omitted, because encoder will automatically set best output file name.

; -br
: BitRate switch. Sets the number of bits utilized per second for the encoding process. Example: aacenc -br 192 -if "audio file.wav"

; -vbrhi
: High quality [VBR] mode. Can be used with -br switch to select base BitRate. If -br is not specified, it takes as default 64kbps/channel. Example: aacenc -br 192 -vbrhi -if "audio file.wav"

; -vr
: Lower quality [VBR] mode. Recommended for internet streaming. Example: aacenc -vr -if "audio file.wav"

; -c
: LowPassFilter cut-off (in hertz). Not recommended. Example: aacenc -br 128 -c 15995 -if "audio file.wav"

; -qual
: Encoder quality level (1 to 9). 9 is usually taken as default, but you can use smaller numbers if you need high speed and high quality isn't essential. Example: aacenc -br 192 -qual 9 -if "audio file.wav"

; -adif
: Use adif instead of adts (default) header. For compatibility with some decoder software and hardware players. Example: aacenc -br 192 -adif -if "audio file.wav"

; -nh
: No headers (raw iso aac stream). For decoder compatibility, and can improve. Example: aacenc -br 192 -nh -if "audio file.wav"

; -profile "x"
: Choose iso aac encoding profile:
:: 0 - low complexity (default, recommended)
:: 1 - main (not recommended, buggy)
:: 2 - main ltp (mpeg-4 only)

: Only lc profile is playable on hardware players so far. Example: aacenc -br 192 -profile 2 -if "audio file.wav"

; -ihsc
: Improved human speech coding. Best for human voice encoding. Not recommended for low Bitrates or [CBR] coding. Example: aacenc -vbrhi -br 192 -ihsc -if "audio file.wav"

; -low_ath
: Tells encoder to use highest sensitivity threshold of audibility. Not recommended on Bitrates lower than 192kbps. Example: aacenc -br 192 -low_ath -if "audio file.wav"

; -pns
: (perceptual noise substitution) - Improves the quality at very low Bitrates. Should be used only at 64kbps or less. Example: aacenc -br 56 -pns -if "audio file.wav"

== External References ==
[http://www.rjamorim.com/rrw/aacenc.html ReallyRareWares]

← Older revision		Revision as of 10:35, 7 April 2013
Line 68:		Line 68:
	== See Also ==		== See Also ==
	* [[PsyTEL AACenc Guide]]		* [[PsyTEL AACenc Guide]]
	* <s>[http://www.rjamorim.com/rrw/aacenc.html ReallyRareWares]</S>

	[[Category:Software]]		[[Category:Software]]
	[[Category:Encoder/Decoder]]		[[Category:Encoder/Decoder]]

← Older revision		Revision as of 23:08, 8 September 2006
Line 66:		Line 66:
	: (perceptual noise substitution) - Improves the quality at very low Bitrates. Should be used only at 64kbps or less. Example: aacenc -br 56 -pns -if "audio file.wav"		: (perceptual noise substitution) - Improves the quality at very low Bitrates. Should be used only at 64kbps or less. Example: aacenc -br 56 -pns -if "audio file.wav"

	== ~~External References~~ ==		== See Also ==
	[http://www.rjamorim.com/rrw/aacenc.html ReallyRareWares]		* [[PsyTEL AACenc Guide]]
			* [http://www.rjamorim.com/rrw/aacenc.html ReallyRareWares]

			[[Category:Software]]
			[[Category:Encoder/Decoder]]