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Computer Audiophile


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About arnaud.mar

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  1. Folks, Here is a code that I wrote in order to : 1- set up the Digital Output audio of your Mac 2- Launch iTunes and select an equalizer 3- Advertize the user by a Crowl message Of course, it can be easily adapted to select the Analog Out, Headphone, etc... I hope it will be useful to some of you! Arnaud PS : it works under OS 10.6.7 ------------------------------------------------- tell application "System Preferences" activate set the current pane to pane id "com.apple.preference.sound" get the name of every anchor of pane id "com.apple.preference.sound" reveal anchor "output" of pane id "com.apple.preference.sound" end tell tell application "System Preferences" to activate tell application "System Events" get properties tell process "System Preferences" set theRows to every row of table 1 of scroll area 1 of ¬ tab group 1 of window "sound" set theOutputs to {} as list repeat with aRow in theRows if (value of text field 1 of aRow as text) ¬ is equal to "Digital Out" then set selected of aRow to true exit repeat end if end repeat end tell end tell tell application "System Preferences" to quit tell application "iTunes" set the current EQ preset to EQ preset "Pop" set theEqPresetName to name of the current EQ preset end tell tell application "GrowlHelperApp" set the allNotificationsList to ¬ {"EQ Preset Changed"} set the enabledNotificationsList to ¬ {item 1 of allNotificationsList} register as application ¬ "Toggle Equalizer Preset" all notifications allNotificationsList ¬ default notifications enabledNotificationsList ¬ icon of application "Script Editor" notify with name ¬ "EQ Preset Changed" title ¬ "iTune EQ Preset Changed to :" description ¬ theEqPresetName application name "Toggle Equalizer Preset" end tell
  2. Folks, Thanks to all of you for your answers! Sorry for not being very communicant lately - I was in and out for my work, then I took some vacation (Spain is so great in summer! ). Then, I get very busy with other stuffs... I was surprised to get so many answer for my first post on the forum. Also very surprised with some comments/answers - of course, I have no financial interest to make you you buy this DAC board! I was (and I am still) looking for a “good” DAC converter to connect my computer to my hifi system. After some search on the web, I realized that the “supposedly good” DACs cost at least 150 USD. Isn't these something wrong?!?! For me, very good DACs are in CD player from years! This cannot surely cost more than some dollars/euros. Surely no more than the price of some active and passive electronic components, no? Then I saw this 35USD / 24bit DAC, that looks good to me, considering the basics I got in electronics... I am still convinced that this DAC is good. Why? Because nobody could point out why this should not be. Maybe the OPA2134 have the tendancy to oscillate or... maybe, the DIR9001 digital input receiver is not mounted as it should be... Or maybe something else is obviously wrong within the design of this DAC... Arnaud
  3. Thanks for your answers. I am going to give a try anyway - it is only 35 USD after all! I might not be a real 'audiophile' but I am able to read an electrical circuit. The PCM1793 is a good DAC converter and it is mounted as it should be (info can be found in the Texas Instrument datasheet) . The analog stage uses an excellent opamp combined with some of the best passive components of the market. Anyway, I discover recently that the "excellent" Grado RA-1 AC headphone amplifier is made with less than 5 USD of electronics and is sold for more than 400USD. If it is true, anything is possible in the audiophile world... Don't you think? Arnaud
  4. Folks, I am very curious to get your feeling about a DAC that cost 35USD and... that looks fantastic! Here it is : http://shop2.hifidiy.net/index.php?main_page=product_info&cPath=8_12&products_id=47 It is made with : Main DAC: Burr-Brown PCM1793 --24-Bit 192kHz Sampling Advanced Segment Audio Stereo DAC --Dynamic Range: 113 dB THD+N: 0.001% --8× Oversampling Digital Filter Digital input receiver : DIR9001 OPAMP : Burr-Brown OPA2134 Do one of you have tried this DAC? Thanks to all of you for your feedback! Arnaud