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Àíãëèéñêèå ìàòåðèàëû
Spanias, A. S. Speech Coding: A Tutorial Review Î÷åíü õîðîøåå ââåäåíèå â êîäèðîâàíèå àóäèî. Äàíà êðàòêàÿ õàðàêòåðèñòèêà îñîáåííîñòåé àóäèîñèãíàëîâ, îïèñàíû ñêàëÿðíîå è âåêòîðíîå êâàíòîâàíèå, ñóáïîëîñíîå êîäèðîâàíèå, PCM, ADPCM, LPC, MELP, CELP è ìíîãî ÷åãî åùå.
1994. (×àñòü ñòàòüè áûëà îïóáëèêîâàíà â Proceedings of the IEEE, October 1994).
PDF.RAR  325 êáàéò
PS.RAR    225 êáàéò
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Hans M, Schafer R. Lossless Compression of Digital Audio Êðàòêèé îáçîð òåõíèê áåçóùåðáíîãî ñæàòèÿ àóäèî è âåñüìà ïîäðîáíîå îïèñàíèå àëãîðèòìà AudioPaK.
HP Laboratories Palo Alto, research report HPL-1999-144, November, 1999
PDF.RAR  201 êáàéò
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Robinson T. SHORTEN: Simple lossless and near-lossless waveform compression Îïèñàíèå àëãîðèòìà èçâåñòíîãî êîìïðåññîðà SHORTEN.
...A simple predictive model of the waveformis used followed by Huffman coding of the prediction residuals... This framework is then extended to lossy coding under the conditions of maximising the segmental signal to noise ratio on a per frame basis and coding to a fixed acceptable signal to noise ratio.
Technical report CUED/F-INFENG/TR.156, Cambridge University Engineering Department, December 1994.
PDF.RAR  104 êáàéò
PS.RAR    52 êáàéò
Ñîáñòâåííî êîìïðåññîð SHORTEN, âåðñèÿ 2.3a  114 êáàéò
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Liebchen T., Purat M., Noll P. Improved Lossless Transform Coding of Audio Signals Îïèñàíèå àëãîðèòìà Lossless Transform Audio Compression (LTAC), èñïîëüçóþùåãî DCT.
...In this paper we present some results on lossless transform coding of CD-quality audio data. One main aspect lies on a convenient quantization method to guarantee perfect reconstruction. We achieve bit rates which are lower than those obtained by lossless linear prediction schemes.
Impulse und Antworten - Festschrift für Manfred Krause, Wissenschaft & Technik Verlag, Berlin, 1999.
PDF.RAR  47 êáàéò
PS.RAR    64 êáàéò
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Èñõîäíûå òåêñòû êîìïðåññîðîâ
Robinson T. SHORTEN Èçâåñòíûé êîìïðåññîð SHORTEN.
ßçûê: C
âåðñèÿ 2.3a  114 êáàéò
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Matthew T. Ashland Monkey's Audio SDK Î÷åíü õîðîøèé êîìïðåññîð.
ßçûê: C++, àññåìáëåð
âåðñèÿ 3.97  228 êáàéò
5
Josh Coalson, Andrey Astafiev è äð. FLAC - Free Lossless Audio Codec Xîðîøèé êîìïðåññîð, íî áîëüøîé. Open-source-ïðîåêò
ßçûê: C, C++
âåðñèÿ 1.1.0  831 êáàéò
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Alexander Djourik, Pavel Zhilin TTA - Lossless Audio compressor Ïðèåìëåìàÿ ñòåïåíü ñæàòèÿ è âûñîêàÿ ñêîðîñòü ðàáîòû.
ßçûê: C
âåðñèÿ 2.0  15 êáàéò
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