Digitalno Snimanje Boris Tosovic.

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Presentation transcript:

Digitalno Snimanje Boris Tosovic

Format Ansprüche LAME MP3 WAVE PCM WMA Bez kompresije Visoka kompresija LAME MP3 WAVE PCM WMA

WAVE Digitalna forma akustičkog signala Containerformat za digitalno snimanje audio fajlova Digitalna forma akustičkog signala

LAME Pocetak rada projekta u avgustu 1998 LAME Ain't an MP3 Encoder Pocetak rada projekta u avgustu 1998 Projekt za razvijanje MP3 tehnologije Smatra se najbržim i visoko kvalitetnim MP3-Encoder MP3-Encoder koji se najviše razvija

LAME Kodierung VBR CBR ABR Joint-Stereo Mono Jednostavni stereo Dual-Mono/Dual-Channel

WMA Windows Media Audio Propritarni audio-codec od Microsofta. do 24 bit/96 KHz DRM Codec Windows Media Audio Lossless Windows Media Audio Voice, ACELP Od 2005 nije više propritaran

Pro & Contras Unkomprimiert WAVE Snimanje bez gubitka kvaliteta Bez troskova za licenziranje Kompatibilnost Veoma veliki fajlovi

Pro & Contras LAME Visoka kompresija OpenSource Razvoj Popularnost Neadekvatno za analizu

Pro & Contras Windows Media Audio Visoka kompresija Popularnost Digital Rights Managment Neadekvatno za analizu

Primjer WAVE 30 sekundi, CD-kvalitet (16 Bit = 2 Byte, 44.100 Hertz, stereo) (44.100 Hz*2 Byte*2 kanala)*30sec= 5.292.000 Bytes 5.167,97 kB 5,05 MB MP3 30 sekundi, 192kb/s 192kb*30/8= ~ 720 kB = 0,47 MB

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