Exactly. And the stereo speakers in your room are not going to re-create that soundfield exactly. However, with a fully 'complementary' recording/synthesis and playback setup, I'm pretty sure that the illusion of a piano playing in your living room can be achieved. A piano playing in another specific room or hall, maybe not.
Last edited:
At my 44's, I still can hear the horizontal in old TV sets, not the 15625Hz directly, but the random noise generated while not on sync.
Most TV sets when running out of sync drop the line frequency dramatically, like to 12kHz. That drop is often enough to make it (much) better audible.
jan
No so simple. The synchroguide circuit was very complex for that era, although a simple 6SN7 did the job, the circuit was very complex. A word for the older ones in which the oscillator and discharge was separate stages. I could see a 6V6 as horizontal oscillator (Not directly I saw, but in 50's manuals).
Inspired in those circuits, I did a strange design which is actually under development, but is working pretty fine.
Inspired in those circuits, I did a strange design which is actually under development, but is working pretty fine.
Synch pulses must be of higher frequency than the stand alone (natural) frequency of the oscillator to be synch'ed. If not, the oscillator will be synch'ed at a 1/2 the frequency, as pulses appears between two oscillator cycles.
The multivibrator oscillator and the sychroguide has a resonant tank in them to help improve stability.
I believe that actual PLL's are a evolution from those DC "tuned" square wave oscillators. I used this idea in my design.
The multivibrator oscillator and the sychroguide has a resonant tank in them to help improve stability.
I believe that actual PLL's are a evolution from those DC "tuned" square wave oscillators. I used this idea in my design.
Golden Ears - both a blessing and a curse
Golden Ears - both a blessing and a curse:
A blessing because it is easy to listen to differences and to setup and tweak a audio setup to perfection, and specially when all other noises than the the intended audio have been eliminated.
A curse because sound emitting from SSD drives, RAM modules, transformers, power supplies light bulbes etc., are disturbing, even the pickup needle when playing LPs are emitting sound that are easily heard even playing at 100dB SPL peaks.
Golden Ears - both a blessing and a curse:
A blessing because it is easy to listen to differences and to setup and tweak a audio setup to perfection, and specially when all other noises than the the intended audio have been eliminated.
A curse because sound emitting from SSD drives, RAM modules, transformers, power supplies light bulbes etc., are disturbing, even the pickup needle when playing LPs are emitting sound that are easily heard even playing at 100dB SPL peaks.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.