📌 #Introduction

Developer of 32+ years for #SAMCoupe #computer - #hardware, #software and magazines. Plus #Retrocomputing hardware for #RC2014, #ZXSpectrum, #Soundchip.

Recent releases: (⭐ newest!)

➡️ #SAMCoupe 🌐 https://www.samcoupe.com
⭐ Quazar Surround 2024 Editions
⭐ VIC-20 Cartridge Interface (new batch available)
⭐ SAM Revival 9 revamp (with Manic Miner!)
SAM Revival 11 revamp
SAM Revival issue 26
Mechanical Keyboard
Trinity Ethernet Interface v1.2 (+SD storage)

➡️ #RC2014 + Compatibles 🌐 https://2014.samcoupe.com
⭐ SAA1099P Soundchip Interface
SID Soundchip Interface
ZX True Tone (ZXTT)
Graphic OLED

➡️ #ZXSpectrum 🌐 https://zx.samcoupe.com
ZX 2 Way
ZX-RC2014 Bus Interface
ROM Slot + Flash Cart

Not been about for a bit so let's start catching up! A video of my SAA1099P Soundchip Interface for RC2014 / RCbus systems being used on a ZX Spectrum, connected via my ZX-RC Bus Interface. The SAA1099P gives six sound channels, with stereo volume registers for each channel. The SAA1099P was made popular for chiptunes by its use in the SAM Coupe computer - the system I've been developing on over the last 32 years!

More info / Purchase the interfaces: https://2014.samcoupe.com

The music playing on the ZX Spectrum was created for the SAA soundchip using E-Tracker music software on the SAM Coupe, the tune being a rendition of the C64 game music from Thing On A Spring, with this version composed for the SAA soundchip by David Sanders.

The E-Tracker player code itself has not required any modification, but I coded a simple IM2 interrupt wrapper for it to play on the Spectrum.

#RC2014 #ZXSpectrum #Chiptune #Demoscene #SAMCoupe #Soundchip #Retrocomputing #Retrogaming

🚨 Website Update!
https://2014.samcoupe.com

Added an application note for my ZX True Tone module (ZXTT) to show the pinout for using it in other AY-3-8910/12 and YM2149 soundchip applications. While originally designed to replace a chip on Ed Brindley's RC2014 YM/AY soundcard it's ideal for other circuits where you use an AY to play ZX Spectrum music.

The ZXTT provides a clock signal to the soundchip of 1.7734MHz to match the 128K ZX Spectrum ensuring that playback of Speccy tunes is pitch (and envelope!) perfect. (A video on my page shows how much distortion a clock of 1.75MHz gives, which is often used for Speccy related AY circuits.)

#rc2014 #soundchip #zxspectrum #retrocomputing #computing #hardware #electronics #chiptune

Hey maker community! 👋

Sharing hard-won audio design lessons for KT148A voice chip users:

The volume struggle is REAL when:
• Using <1W film speakers
• Housing design ignores acoustics

But good news! We found:

🔹Paper cone speakers (AliExpress) work wonders
🔹Proper venting > amplifier mods
🔹Size DOES matter for speakers

Anyone else solved this differently? Let's compare notes!

#ProductDesign #HardwareSolutions #KT148A #SpeakerVolume #VoiceChip #SoundChip

https://www.linkedin.com/pulse/how-make-speaker-sound-louder-kt148a-voice-chip-key-points-tsui-dckoc

Sound Chip, whisper me your secrets [video]

https://media.ccc.de/v/gpn23-302-sound-chip-whisper-me-your-secrets-

#HackerNews #SoundChip #Secrets #Video #TechArt #CreativeCoding

Soak testing new SAA1099P cards for RC2014 via a SAM-RC Bus Interface on my SAM Coupe computer.

With four cards, plus the SAA built into the SAM, that gives a total of 30 SAA sound channels... Hmmm...! 🤪

https://2014.samcoupe.com
for all the hardware I've designed for use with the RC2014 ecosystem and compatibles (inc. ZX Spectrum via a ZX-RC Bus Interface!)
- SID Soundchip Interface
- Graphic OLED
- SAA1099P Soundchip Interface
- ZX True Tone (for YM/AY soundcard)
- Bus Interfaces to use RC2014 peripherals with several home computers.

#rc2014 #samcoupe #chiptune #z80 #synth #electronics #hardware #soundchip #8bit

Quick update to my sub site with the peripherals I've designed and released for use with RC2014 systems and compatibles with the RC style expansion connector.

https://2014.samcoupe.com

- Added the option to include 'SAM Revival 11' with the new SAA1099P Soundchip Interface. If you're curious about sound on the SAM Coupe computer, which uses the SAA1099P, this back issue of SAM Revival magazine focuses on sound on SAM and includes a 19 track audio CD.

- Added more community links.

#Soundchip #Chiptune #Synthesizer #Retrocomputing #8bit #Z80 #RC2014 #SAMCoupe

🚨 New Release - SAA1099P Soundchip Interface for RC2014 and compatibles.

The SAM Coupe has been my computer of choice for the last 32 years so bringing its sound chip, the Philips SAA1099P, over to the RC2014 and compatible ecosystem is a no brainer, especially following a request asking if it was possible, so here it is!

The SAA1099P can considered to be similar to using two AY sound chips: It provides 6 sound generators (31Hz to 7.81KHz). 2 noise generators and 2 envelope controllers. Separate volume for left and right volumes of each channel. On the interface the I/O port used can be selected with jumpers to avoid clashes with other hardware you have, as well as for using multiple cards in the same system.

More information / purchase:
https://2014.samcoupe.com

In the video the music playing is from the 'Lyra 3' megademo on the SAM Coupe, by the legendary chiptune musician Ziutek from the E.S.I. demogroup.

#soundchip #chiptune #rc2014 #synth #electronics #indiedev #samcoupe

In motion - with goats and oscilloscope view.

improvised by ear and incorrect potato chip tune cover of the track from the social network movie.

I just made it up as i went after a point.

Cool bit of chip tune. If you're an Atari ST in 199X and someone added filters to you.

#ym2149f #chiptune #atarist #eurorack #soundchip

This morning I've added more products to my new "quickshop" page to make ordering in the UK easier and a lot more convenient.

https://www.samcoupe.com/quickshop.htm

Buy It Now buttons added for the range of hardware I've designed and released for use with #RC2014 and compatibles (such as #ZXSpectrum and #SAMCoupe via my bus interfaces, MicroBeast, Minstrel 4D, systems with RC2014 / RCbus expansion ports)

Released in June 2020:
SID SOUNDCHIP Interface
- Use the famous #C64 soundchip with your #Z80 system. Also works with ARMSID and SwinSID. Includes 50/60/100Hz interrupt generator.

Released in July 2020:
GRAPHIC OLED Interface
- Add a 128 x 32 OLED module to your project.

Released in September 2021:
ZX TRUE TONE (ZXTT)
- 1.7734MHz Clock oscillator for use with Ed Brindley's YM/AY Soundcard.

Also available on my Tindie and eBay stores - see profile. Plus much more information on: https://2014.samcoupe.com

#retrocomputing #hardware #indiedev #soundchip #graphics #electronics