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Magic-Talkie .NET 2.0

Wave to Magic Voice - Sprachdaten selbst erzeugen



1987 book "Chip Talk: Projects in Speech Synthesis" by Dave Prochnow (enthält u.a. SP0256-AL2 (General Instruments)

Shuzo Saito and Kazuo Nakata: "Fundamentals of Speech Signal Processing" (1985) (enthält Standard LPC Algorithmus)


SPro home page SPro is a free speech signal processing toolkit

Wave to LPC package für 5220-Chip von Texas Instruments (oder kompatible wie 5200):
Little package from Quadravox, ok to distribute, as long as it is known that they do not provide support. It is a Windows 3.1 application, works on Win98SE, also on Windows XPpro SP2 (make sure your pathnames do not exceed 8 letters and you have BWCC.DLL in the QBOX folder).

LPC-PARCOR-CEPSTRUM Generator for C Programmers version 0.5b
Library distribution includes full C source and binaries for MS-DOS. LPC version 0.52 (as released 04/16/94)

LPC-10 speech coder software

Speech Signal Processing Toolkit (SPTK)

TI: Advanced Speech Library (Hyperception, Inc.)


Dr A.J. Robinson, Speech Processing (University of Cambridge)

Quadravox Inc.

SC-01A Speech Synthesizer

Vocoders Info Page (vocoder, speech recognition, text to speech, speech synthesis, sampling, Midi/CV interfaces and algorithmic composers)


Kurzer Ausflug: Der TI 99/4 A von Texas Instruments war ein Heimcomputer der 1980 auf den Markt kam. Für diesen gab es als Zubehör ein Speech Module. Die Entwickler dieser Speechbox als auch des legendären "Speak and Spell" Lernspielzeugs von Texas Instruments haben später den Sprachchip (Toshiba T6721A) des Magic Voice Moduls für den C64 entwickelt. Daran beteiligt war unter anderem Richard H. Wiggins, Jr.. Toshiba baute übrigens einige Chips für die Taschenrechner von Texas Instruments.

Kurzbiografie Richard Wiggins:

1963 BS in Mathematics, Louisiana State University, Baton Rouge, LA
1963 National Security Agency, Fort Meade, Maryland
1966 MA in Mathematics, American University, Washington, D.C.
1966 The MITRE Corp, Bedford MA
1971 MS in Applied Mathematics, Harvard University, Cambridge, MA
1973 PhD in Applied Mathematics, Harvard University
1976 Central Research Lab., Texas Instruments, Dallas, TX
1982 Dir. Speech Tech., Commodore Business Machines, Dallas, TX (Abteilungsleiter der kurzlebigen Sprach-Division von Commodore)
1984 Texas Instruments, Dallas, TX
1998 in Rente - retired

Patente an denen R. Wiggins mitgewirkt hat und die aufschlußreiche Informationen über die Funktionsweise des im Magic Voice Modul eingebauten Sprachchips geben:

Document: US Patent Number 4209844
Title: Lattice filter for waveform or speech synthesis circuits using digital logic
Abstract: A digital filter of the type which may be used in circuits for generating complex waveforms, such as human speech. The filter has a multiplier, an adder coupled to the output of the multiplier and various delay circuits coupled to the output of the adder. A latch memory is coupled to the output of one of the delay circuits. Switching circuits are provided for the output of the delay and the latch memory to inputs of the multiplier and the adder to selected times. Coefficients of the filter are preferably stored in a memory coupled to another input of the multiplier. The excitation signal is coupled to the adder in one embodiment and to the multiplier in another embodiment. In either embodiment, the digital filter may be implemented on a single integrated circuit chip.
Source: 4209844

Document: US Patent Number 4970659
Title: Learning aid or game having miniature electronic speech synthesis chip
Abstract: An electronic hand-held, talking learning aid is disclosed. The learning aid includes a MOS speech synthesizer chip having an active surface area on the order of 45,000 square mils. The disclosed speech synthesizer chip includes a digital lattice filter, a voiced/unvoiced excitation circuit, a speech parameter interpolator, an input parameter decoder, a digital-to-analog converter and associated timing circuits. The learning aid is also provided with a microprocessor which functions as a controller for controlling the operation of the unit. A small speaker is driven by the digital-to-analog converter on the speech synthesis chip and a keyboard and display device are strobed by the microprocessor controller. Features include modes in which a speech synthesizer recites instructions or questions to the operator who must properly respond.
Source: 4970659


Document: This paper appears in: Acoustics, Speech, and Signal Processing [see also IEEE Transactions on Acoustics, Speech and Signal Processing]
Publication Date: February 1983, Volume: 31, Issue: 1, On page(s): 329-334, ISSN: 0096-3518
Title: C²MOS speech synthesis systems
Authors: Fuminari Tanaka, Hiroshi Shigehara, Hiroaki Suzuki, Yasoji Suzuki, Ichizoh Takimoto
Toshiba Corporation, Kawasaki, Japan
Abstract: Employing an updated C²MOS technique, two types of speech synthesizer LSI circuits, based on the PARCOR and the ADM methods, are introduced and described.
These two LSI circuits, fabricated with a standard metal gate CMOS process, have several features.
1) They can be operated with a single power supply over a 3-7 V range.
2) Their power dissipations are, respectively, 0.6 mW (PARCOR) and 0.18 mW (ADM) with the supply at 3 V.
3) High accuracy 9- and 10-bit R, 2R D/A converters are constructed in each LSI circuit.
In the PARCOR system, various high quality and low data rate speech outputs are obtainable. The ADM system is used for voice transmission and synthesis. By adequately applying these two systems to the wide needs in the market, it is possible to achieve good cost performance.
Source: IEEE 1164056

Document: This paper appears in: Solid-State Circuits Conference. Digest of Technical Papers. 1982 IEEE International
Publication Date: February 1982, Volume: XXV, On page(s): 266 - 267
Title: C²MOS speech synthesis systems
Authors: Fuminari Tanaka, Hiroshi Shigehara, Hiroaki Suzuki, Yasoji Suzuki, Ichizoh Takimoto, Y. Saeki, I. Sasaki, Y. Iwamoto, S. Itoh, K. Takamori, H. Sekiguchi
Toshiba Corporation, Kawasaki, Japan
Abstract: This paper will cover two speech synthesizer LSIs developed in C²MOS technology. One uses the partial autocorrelation (Parcor) algorithm and the other is based on adaptive delta modulation. The power dissipation is only 0.6 and 0.18mW, respectively.
Source: IEEE 1156313


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