The ReActiveMicro Apple II Wiki - User contributions [en]

Talk:Phasor

2025-04-18T18:47:10Z

Angelworks: /* Quite a lot of distortion on line input */

Please post your support questions here and ReActiveMicro or someone from the Community will be glad to assist you!

Question regarding Section: OpAmp And Audio Mixer Circuit

> "In the current Phasor project the right and left channels for speech are combined for mono output which sounds a lot better than the original *signal* channel, ... "

Is the spelling intentional here or is this a typo and "single" should be used instead?
If it is intentional, I don't understand the usage - perhaps this can be explained?

Feature Requests:
- Emulate the SSI263 Speech chip output in FPGA - Tom Charlesworth has emulated the Speech output in AppleWin so it is possible to do this.
- Connection from the Apple IIgs Ensoniq audio to provide stereo (or quad?) output via the Phasor output so we have one output for speakers.
- Watch the IIgs bus for speaker toggling traffic in bank 0 and emulate speaker toggle noises and output via the Phasor output so we have one output for speakers.
- Similar to A2Heaven Mega Audio, please provide a Dorrough meter for each AY. Plamen calls this an Equaliser meter but he's only showing 4 channels mapped from output level on the emulated devices.

== Quite a lot of distortion on line input ==

I finished assembling the Phasor and it works, but on line input it is really distorted - not quite sure what could be wrong. I'm using it in an Apple 2e platinum. If I plug headphones into it - it sounds better but still distorted.

FROM ReActiveMicro Support: Check top left front side of card. You will see two sets of resistors labeled "LEFT" and next it it will be labeled "RIGHT". Change the top resistors to 330ohm, and the bottom resistors to 10kohm. This should lower the line volume. Please let us know if this helps. You can also email Support@ReActiveMicro.com if needed. Thanks for your patience with this issue!

That is quite a bit better - if I want to reduce the level another 10/20% what would the values be?

Talk:Phasor

2025-04-14T05:12:48Z

Angelworks: /* Quite a lot of distortion on line input */

Please post your support questions here and ReActiveMicro or someone from the Community will be glad to assist you!

Question regarding Section: OpAmp And Audio Mixer Circuit

> "In the current Phasor project the right and left channels for speech are combined for mono output which sounds a lot better than the original *signal* channel, ... "

Is the spelling intentional here or is this a typo and "single" should be used instead?
If it is intentional, I don't understand the usage - perhaps this can be explained?

Feature Requests:
- Emulate the SSI263 Speech chip output in FPGA - Tom Charlesworth has emulated the Speech output in AppleWin so it is possible to do this.
- Connection from the Apple IIgs Ensoniq audio to provide stereo (or quad?) output via the Phasor output so we have one output for speakers.
- Watch the IIgs bus for speaker toggling traffic in bank 0 and emulate speaker toggle noises and output via the Phasor output so we have one output for speakers.
- Similar to A2Heaven Mega Audio, please provide a Dorrough meter for each AY. Plamen calls this an Equaliser meter but he's only showing 4 channels mapped from output level on the emulated devices.

== Quite a lot of distortion on line input ==

I finished assembling the Phasor and it works, but on line input (on my scaler/stero) it is really distorted - not quite sure what could be wrong. I'm using it in an Apple 2e platinum. If I plug headphones into it - it sounds better but still distorted.

Talk:Phasor

2025-04-14T05:12:15Z

Angelworks: /* Quite a lot of distortion on line input */ new section