a) new audio demo of AudioEngine *hardware* running the Cloud algorithm. www.synthtech.com/m520/cloud_hw.mp3 As usual, square-waves in the left channel, sine waves in the right. This lashup uses the Xilinx S3Esk development board and the Analog Devices ADuC7020 Mini-kit demo system. The two are connected through a 3-wire SPI interface running at ~500kHz clock rate, which means we only get the oscillator frequencies updated at about a 100Hz rate. The ARM reads two voltages and interprets them as frequency and spread. From this it computes 16 oscillator frequencies and sends these to the FPGA. The voltages are just 2 pots, so the demo is just "knob twisting". But you can hear the various effects of the raw oscillators (no chaos or PWM or spectral shaping). The ARM we will actually use is the 7026, which has more ROM/RAM but uses the same 'core'. b) Indiana is still in the process of making up the ~400 kits left to ship. They are scheduled to receive more parts late tomorrow (mostly 1500 knobs) and by the end of the week should have about 150 kits available to ship. So, it's looking like these kits will start shipping out the week of the 13th. The pacing item remains the panel pots, I am calling Bourns this week to see if they can speed things up. There are enough pots to make up around 240 kits as of now. c) On the MOTM-650 firmware front: the root cause of the remaining bugs has been identified (timer issue) and also the week of the 13th I am expecting shipments to resume. If, however, the code takes longer I will ship the current software. d) I am shipping 17 assembled modules out this week. Paul S.
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2006-11-06 by Paul Schreiber
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