Comments on: Covox Speech Thing 30 years later https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/ All about electronics and circuit design Thu, 16 Apr 2026 22:29:11 +0000 hourly 1 http://wordpress.org/?v=3.9.14 By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1867972 Thu, 01 Jan 2026 16:34:22 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1867972 https://www.serdashop.com/CVX4?fbclid=Iwb21leAOyP9VjbGNrA7I_0mV4dG4DYWVtAjExAHNydGMGYXBwX2lkDDM1MDY4NTUzMTcyOAABHrfpBml65Aq9pPRo_kWx4qLnJ2t3YzIEdclW7BEeR-2tDcDJCXZWkVy1tcH7_aem_I4-xlRA7PIaD39sjJaPVAg

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1864257 Mon, 27 Oct 2025 00:28:07 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1864257 The ADC0804 is an 8-bit analog-to-digital converter (ADC) that converts analog voltage signals into equivalent 8-bit digital values. It operates on a single 5V power supply and provides an output in binary form ranging from 00000000 (0V) to 11111111 (Vref). The chip uses a successive approximation method for conversion, ensuring high accuracy and fast response. It includes important pins such as Vin(+), Vin(–), Vref/2, clock input, and digital outputs (D0–D7). The reference voltage (Vref) determines the input range; if Vref = 5V, each bit represents 19.53mV. In the circuit shown, an external RC network generates the clock signal, and the ADC interfaces directly with a microcontroller (MCU) to send converted data for further processing. This makes it ideal for sensor-based data acquisition, embedded systems, and measurement applications.
#ElectronicsEducation #electronics #ADC0804 #embedded #microcontroller #electronicsprojects #analog #digital #sensor #adc #engineering

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1831272 Sun, 30 Jun 2024 11:23:08 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1831272 https://yeokhengmeng.com/2024/06/my-first-chip-with-tiny-tapeout-cvx/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1831271 Sun, 30 Jun 2024 11:22:32 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1831271 https://hackaday.com/2024/06/21/tiny-tapeout-4-a-pwm-clone-of-covox-speech-thing/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1723578 Mon, 06 Sep 2021 12:03:16 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1723578 Amiga Samplers : Budget dance music in 1990
https://www.youtube.com/watch?v=i9MXYZh1jcs

An Amiga 500, Stereo Master and handful of $1 records from a 1990 Sunday market: Can we make a dance track on a budget home computer? Of course! Back when big-name dance tunes required big-budget-gear, a secondhand Amiga let you take the first steps to making a dance-floor banger.

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1722298 Tue, 24 Aug 2021 08:00:04 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1722298 How the Covox and Disney Sound Source Worked.
https://www.youtube.com/watch?v=Wt4VcLF8Wug

In this episode I explore the Covox Speech Thing and Disney Sound Source.

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1711161 Wed, 19 May 2021 11:45:19 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1711161 Silly Sound Bastard: yet another Covox Speech Thing clone
https://www.youtube.com/watch?v=DKLKtH_rQJU

Yet another Covox Speech Thing clone.

Project Sources:
https://github.com/necroware/silly-sound-bastard

Covox device theory by Eugeny Brychkov:
http://kb.gr8bit.ru/KB0010/GR8BIT-KB0010-Adding-multimedia-capability-covox-device.html

Audio Tracks:
https://modarchive.org/index.php?request=view_by_moduleid&query=35339
https://modarchive.org/index.php?request=view_by_moduleid&query=40475

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2018/01/18/covox-speech-thing-30-years-later/comment-page-1/#comment-1602823 Thu, 06 Sep 2018 19:36:54 +0000 http://www.epanorama.net/newepa/?p=62765#comment-1602823 A Science Project: Bringing the Covox Speech Thing to 2017
http://yeokhengmeng.com/2017/01/a-science-project-bringing-the-covox-speech-thing-to-2017/

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