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Sinclair +2 to VGA without VGA boxA few days ago someone in a Spanish forum mentioned that his friend claimed to have built a cable to connect his Sinclair +2 to a VGA monitor without…
... conposite one. Is still 15 Khz frequency. This only work if the ... monitor can down to 15 Khz and only a few can ... -
Frequency in KHz of the TV outputI recently acquired a very cheap USB analog TV tuner. When I connect it to the cable TV, it only finds two channels. But when I change the frequency …
... when I change the frequency in KHz manually with reference to ... cannot find the frequency when scanning between 48250 KHz and 822250KHz, ... a more or less precise frequency, I might be able ... />
What would be the frequency in KHz of the modulator output? -
MP3 loading testsIn a previous thread, Spector says: "The loss of an mp3 file is nothing compared to the loss from an old audio cassette tape. " Dunny says: "Which i…
... , it's the sampling rate (Khz) that decides this, not the ... sampled at 44100 Khz will have a greater frequency range than even ... -
AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…
... formulas :
AYFrequency=1000000
Frequency = 440*(2^(octave+((note-10 ... br /> Period = round((AYFrequency/16)/Frequency)
where Octave = -4 to ... big for the 12 bits frequency register), I get the ... I compare it to the frequency used by the player ... -
old PC with Monocrome Monitor Out.So as discussed in the Carboot sale thread, I have brought and old Apricot Xi. It takes a monochrome monitor via a 9 pin D connector. Now I don't ha…
... standard positive TTL levels. The frequency
of the Horizontal Sync ...
is 15.79 kHz; the frequency of the Vertical Sync Pulses ... -
Audio frequency range from modulator?Anyone know what the frequency range of the audio that's output through the RF? In particular for the 128k/+2. I've checked the manuals but couldn'…
Anyone know what the frequency range of the audio that' ... replicating the RF audio output frequency range. So it sounds authentic ... -
48K spectrum built-in speaker - frequency response?Hello. I was wondering what would be the typical frequency response of the original speaker found on the spectrum's board... Could a replacemen…
... what would be the typical frequency response of the original speaker ... a replacement with a broad frequency response like this one (150 ... -
The sound quality (or not) of AM radioInspired by [url=https://worldofspectrum.org/forums/discussion/comment/995799/#Comment_995799]this comment about the BBC's methods of beating pirate …
... radio has such a dreadful frequency response?
... run it through a frequency analyser to see where ... translates to a frequency of 1440 kHz when quantised to ... carrier wave of 1440 kHz means 1,440,000 ... digital streams (stereo, 192 kHz, 24-bit), and it' ... -
Music / BonustracksHi all, Is there a reason for some of the low quality MP3s still in the above folder? If not, could someone please upload clearer versions of the f…
... then sample at TWICE that frequency or higher, you will get ... greater than twice the highest-frequency component in the original signal ... at 44.1 (or 44) kHz, 16 bit, and convert this ... -
New SpeccyDo you think someone should go about creating a new spectrum computer? I'm talking about a spectrum compatible (not an emulator) with the capabiliti…
... the player:
; * Carrier Frequency
; Fc = Fcpu/(105 + 4 ... />
; DAC LEVELS Fc (kHz) Signal BW (kHz)
; --- ------ -------- ---------------
; 3.46 ... has Fc=16kHz. The high frequency whale is audible on PC ... -
Polyphonic music with the speakerAnyone knows how to make music with more than one voice with the 48k speaker?
... /> The resulting WAV is 20 kHz, 8 bit. Each sample can ... . The sampling frequency falls inside the 16-22 kHz range you suggested ... .
However, since the max frequency ... that can be present in a 20 kHz WAV is 10 kHz ... -
Polyphonic music with the speakerAnyone knows how to make music with more than one voice with the 48k speaker?
... frequency that can be present in a 20 kHz WAV is 10 kHz ... technique adds frequency components at the sample frequency and its ... 'll see frequency components at the sample frequency and that's ... effectively quadruples the carrier frequency and pushes the buzz 4 ... -
Spectrum on an American TVHello all, Does anybody know if it is possible to run a UK Speccy on an American TV? I think I know the answer and it is "no". Thought I would che…
... horizontal line frequency, which, on a european tv, is 15 kHz. A ... the computers mentioned produces 15 kHz signals.
An old "Amiga ... when you apply a 15 kHz signal, as long as the ... you connect such a 15 kHz RGB-signal to the SCART ... -
MP3 loading testsIn a previous thread, Spector says: "The loss of an mp3 file is nothing compared to the loss from an old audio cassette tape. " Dunny says: "Which i…
... , it's the sampling rate (Khz) that decides this[/QUOTE]
frequency content, or the encoding is ... -
MP3 loading testsIn a previous thread, Spector says: "The loss of an mp3 file is nothing compared to the loss from an old audio cassette tape. " Dunny says: "Which i…
... MP3 encoding is removing high-frequency content, or the encoding is ... interesting one. The drop in frequency may not be really happening ... rate, which is measured in Khz as we all know, and ... .1, you get the maximum frequency for that sampling rate, which ... -
Tape not loading - ideasI have two spectrum 48k rubbers. The tape drive is one that has a data mode and a ph mode. The data mode overrides the volume control. Prior to last…
The high frequency-signal you got there, may ... a wavesignal of ca 60 kHz (as far as i remember ... -
Tape not loading - ideasI have two spectrum 48k rubbers. The tape drive is one that has a data mode and a ph mode. The data mode overrides the volume control. Prior to last…
[QUOTE=Pilsener;198555]The high frequency-signal you got there, may ... a wavesignal of ca 60 kHz (as far as i remember ... the range of 80 Khz to 105 Khz, depending of tape type ... -
Buzzing SpectrumPicked up a Spectrum + (48k) today at a car boot, for 3 quid:-P On the plus side it does work, however it does buzz pretty bad. What normally causes …
... a particularly noisy one. The frequency of the power supply is ... audio frequency (modern switchers tend to run at hundreds of kHz or ... -
Buzzing SpectrumPicked up a Spectrum + (48k) today at a car boot, for 3 quid:-P On the plus side it does work, however it does buzz pretty bad. What normally causes …
... a particularly noisy one. The frequency of the power supply is ... audio frequency (modern switchers tend to run at hundreds of kHz or ... -
MP3 or WaveWhich sound format is better quality/bitrate for loading Spectrum games from an audio CD? MP3 or Wave?
... tstates, which corresponds to a frequency of 3.5x10^6/667 ... , so that's only ~11 KHz. Double that to allow for ... turboloaders = 22 KHz, and we need only one ... perfectly represented by a 22 KHz 1-bit WAV (or VOC ... -
ZX81 tape formatIs there a description of it somewhere? The TZX format doesn't give it but can it be worked out from what it says about block 19? There is a good d…
... that the encoding is not frequency-based, it is rather
frequency of the waves is 5.5 kHz (each pulse ... -
My 1st CPLD project using the Xilinx XC9536Title says it all - for those of you who are considering the use of a CPLD or FPGA (programmable logic) in your electronics ventures, I've documented…
... since that does improve high-frequency behaviour (somewhat). The main thing ... to input slow-moving signals (~kHz range), or connect a simple ... -
did anyone say beeper?some people where asking for a beeper demo... well i don't know anything about demo making so for now i've put together this musicdisk with some old …
... because they lose the higher-frequency harmonics and edge resolution because ... rate of 22 or 44 KHz to play the beeper data ... with a maximum frequency of 11 or 22 KHz. Fine for pure ... -
did anyone say beeper?some people where asking for a beeper demo... well i don't know anything about demo making so for now i've put together this musicdisk with some old …
... because they lose the higher-frequency harmonics and edge resolution because ... rate of 22 or 44 KHz to play the beeper data ... -
playing sound samples from Boriel's zxbasic-compilerfirst of all, sorry if it sounds confusing if i'm posting this thread here instead instead of at Discussions:SinclarBasic it's because this is more …
...
;
; * Carrier Frequency
; Fc = Fcpu/(105 + ... /> ; DAC Resolution LEVELS Fc (kHz) Signal Bandwidth (kHz)
; -------------- ------ -------- ----------------------
frequency.
... -
which zx-spectrum games uses 1bit sound samples?hi! I'm looking for zx-spectrum games using 1bit sound samples. Compairing with msx, which has far less games available than zx-spectrum, there are f…
... is therefore about 8.64 kHz.
[/QUOTE]
8kHz ... at the sample rate and frequency multiples and this will place ... -
old PC with Monocrome Monitor Out.So as discussed in the Carboot sale thread, I have brought and old Apricot Xi. It takes a monochrome monitor via a 9 pin D connector. Now I don't ha…
... standard positive TTL levels. The frequency
of the Horizontal Sync ...
is 15.79 kHz; the frequency of the Vertical Sync Pulses ... probably too low a horizontal frequency for a VGA monitor too ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... need use more than 6 KHz, at this frecuency, i can ... by play a 2.000 KHz wave, but if the duty ... this waves are the same frequency, but the duty cycle are ... not equal.
If frequency are 1 Hz, then to ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... play a 2.000 KHz wave, but if the ... using a single sinusoidal frequency and only varying the ... bandwidth because only one frequency was being used. People ... 3.5e6) = 44.3 kHz. Which is why you ... square waves. Your high frequency signals generated on the ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... the slow frequency.
It run between 6 KHz and 600 ... set 0000010, it make variable frequency, and variable duty cycle
the slow frequency is used by 1000000 and ... /s = 7 KHz
Remember i use frequency and Duty cycle ...
