Comments on: My LPT DAC story https://www.epanorama.net/blog/2014/09/29/my-lpt-dac-story/ All about electronics and circuit design Sun, 05 Apr 2026 18:35:45 +0000 hourly 1 http://wordpress.org/?v=3.9.14 By: Tomi Engdahl https://www.epanorama.net/blog/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1831274 Sun, 30 Jun 2024 11:24:27 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1831274 https://hackaday.com/2024/06/21/tiny-tapeout-4-a-pwm-clone-of-covox-speech-thing/
https://yeokhengmeng.com/2024/06/my-first-chip-with-tiny-tapeout-cvx/

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1792815 Tue, 17 Jan 2023 13:09:40 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1792815 https://www.vogons.org/viewtopic.php?t=47798

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1792814 Tue, 17 Jan 2023 13:08:56 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1792814 https://linuxgazette.net/109/john.html

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1723579 Mon, 06 Sep 2021 12:03:31 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1723579 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/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1722297 Tue, 24 Aug 2021 07:59:47 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1722297 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/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1703233 Wed, 10 Feb 2021 09:17:59 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1703233 This video describes what was done with Amiga and I wanted to do similar things with PC.
I built the DAC and also ADC circuit for sampling.
Some other people made Tracker software for PC that worked with my DAC hardware.

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/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1610998 Fri, 02 Nov 2018 10:26:59 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1610998 CVX4: Wolfenstein 3D sound effects – disney sound source (TEMU loaded)
https://www.youtube.com/watch?v=A5PdhbNMTH4

Disney Sound Source playback using CVX4 (TEMU loaded) on DOS PC with CVX4 parallel port soundcard

]]> By: Tomi Engdahl https://www.epanorama.net/blog/2014/09/29/my-lpt-dac-story/comment-page-1/#comment-1610996 Fri, 02 Nov 2018 10:02:24 +0000 http://www.epanorama.net/newepa/?p=27630#comment-1610996 Someone seems to be still selling Covox clones as commercial product:

Home – RETRO Soundcards – CVX4
https://www.serdashop.com/CVX4

CVX4:

Parallel port soundcard with high quality tuning options, compatible with Covox Speech Thing
Line out connection, intended to connect to amplified speakers

Premium Covox Sound – The CVX4 Printer Port DAC from Serdaco
https://www.youtube.com/watch?v=LCI04jkKOeE

The CVX4 is a premium clone of the Covox Speech Thing from the late 80s. It plugs into the parallel / printer port and doesn’t need any software or drivers.

It is supported buy a few games and demos and can play tracker music in supported players. 0.1% tolerance resistors are used and it is produced professionally with SMD components.

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