Search found 176 matches

by PiyoTaro
Mon Jun 24, 2019 12:04 pm
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 92
Views: 17782

Re: Musical potential of the NEXT.

So let's review the sound cards that have been released in the world of ZXSpectrum and compatible machines. There were many things not found in Google search, including the official site of "TurboSound" . In the future, wiki will be expanded, and 'the type of expansion bus' supported by the sound c...
by PiyoTaro
Mon Jun 24, 2019 11:57 am
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 92
Views: 17782

Re: Musical potential of the NEXT.

So let's review the sound cards that have been released in the world of ZXSpectrum and compatible machines. There were many things not found in Google search, including the official site of "TurboSound" . In the future, wiki will be expanded, and 'the type of expansion bus' supported by the sound c...
by PiyoTaro
Mon Jun 24, 2019 11:53 am
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 92
Views: 17782

Re: Musical potential of the NEXT.

A post to this thread shows that "the hardware development of ZX SpectrumNext is already over", but it seems to be be only an individual opinion (and all relevant remarks he posted here have been erased.). -Posting to the thread "TurboSound Control Interface" A reply to me was like that, but a few d...
by PiyoTaro
Thu Jun 20, 2019 7:28 pm
Forum: ZX Spectrum Next
Topic: TurboSound Control Interface
Replies: 11
Views: 861

Re: TurboSound Control Interface

The circuit released by VELESOFT as "Turbo Sound" seems to be a product attached to the sound chip of ZXSpectrum, and it seems that the address decoder circuit of the ZXSpectrum version is not included. The complete schematic at the bottom of the homepage does not seem to be for Sinclair. https://v...
by PiyoTaro
Sun Jun 16, 2019 9:57 am
Forum: ZX Spectrum (and Clones)
Topic: 2nd / Design a small Sound card for Next
Replies: 5
Views: 1256

2nd / Design a small Sound card for Next

PCB board module does not work 1. "Sound card does not respond" is "conflict with internal peripherals" At the end of May 2019, the official wiki item "BOARD FEATURE CONTROL" was updated and the article "A note on partial decoding" was added. https://specnext.dev/wiki/Board_feature_control 2. "Stop...
by PiyoTaro
Sun Jun 16, 2019 9:47 am
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2645

Re: Design a small Sound card for Next

PCB board module does not work 1. "Sound card does not respond" is "conflict with internal peripherals" At the end of May 2019, the official wiki item "BOARD FEATURE CONTROL" was updated and the article "A note on partial decoding" was added. https://specnext.dev/wiki/Board_feature_control 2. "Stop...
by PiyoTaro
Tue Jun 04, 2019 6:41 pm
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2645

Re: Design a small Sound card for Next

PCB board module does not work Supplement 2019/6/2 Address decoding problem. The output of HC138 was changed, and the operation was confirmed with the 8-bit I/O address '$ F7'. Replace the above address '$F5' as '$xxF7'. --- The remaining work is "to lower the amplification gain of the Amplifier" f...
by PiyoTaro
Sun Jun 02, 2019 5:25 pm
Forum: ZX Spectrum Next
Topic: The pitch of the sound is strange. (NextBASIC "PLAY" statement)
Replies: 6
Views: 440

Re: The pitch of the sound is strange. (NextBASIC "PLAY" statement)

And this second number here is 0? https://i.ibb.co/9gs6k5p/438-E6080-D3-B9-4-E25-B811-0-CE4-C461-C45-F.jpg The default is "7". If I change this, it may not be displayed on my HD TV. "CONFIG FILE May 3, 2017"-HARDWARE MAIN PAGE https://www.specnext.com/config-file/ --- You must run at 50Hz with vide...
by PiyoTaro
Sun Jun 02, 2019 1:53 pm
Forum: ZX Spectrum Next
Topic: The pitch of the sound is strange. (NextBASIC "PLAY" statement)
Replies: 6
Views: 440

Re: The pitch of the sound is strange. (NextBASIC "PLAY" statement)

SevenFFF wrote:
Sun Jun 02, 2019 1:26 pm
You must run at 50Hz with video timing setting 0 for accurate clock speed and pitch.

"TBBLUE BOOT ROM"
The launch profile is "Next (NextZxOS / Std. 48K)".
In 'Options', '60 Hz' is set to 'NO'.

In the NMI menu, the system clock is 14 MHz. 'Frequency' is '50Hz'.
by PiyoTaro
Sun Jun 02, 2019 9:40 am
Forum: ZX Spectrum Next
Topic: The pitch of the sound is strange. (NextBASIC "PLAY" statement)
Replies: 6
Views: 440

The pitch of the sound is strange. (NextBASIC "PLAY" statement)

The pitch of the sound is strange. (NextBASIC "PLAY" statement) I have a question in the "Turbo Sound" related thread, "I want to know the value of the clock frequency of the ZX Spectrum system below 2 decimal places". When I made a piano-like sound with NextBASIC and recorded it as a sample to comp...