[PD] making puredata headphone-safe

[Jonathan Wilkes]

Doesn't hurt here*.  I guess we're getting into a subjective realm-- but if someone adjusts their master volume for [osc~ 5555]---[dac~] to be as loud as possible without being uncomfortable, I have a hard time believing that they would be comfortable with [noise~]---[*~ 999999]--[clip~ -1 1]--[dac~] at that same master level.

-Jonathan


* I adjusted my master volume so that the clipped noise was at a tolerable volume, then checked [osc~ 5555]--[dac~] at that same level.


>________________________________
>From: Martin Peach <martin.peach at sympatico.ca>
>To: Jonathan Wilkes <jancsika at yahoo.com>
>Cc: tim vets <timvets at gmail.com>; "pd-list at iem.at" <pd-list at iem.at>
>Sent: Tuesday, August 23, 2011 6:48 PM
>Subject: Re: [PD] making puredata headphone-safe
>
>On 2011-08-23 18:25, Jonathan Wilkes wrote:
>> Do you mean:
>> [osc~ some-frequency]
>> |
>> [*~ 5555]
>>
>> ?
>>
>
>I don't think so. 5555Hz is around dentist drill frequency, so it hurts ;).
>Your dac can never go above one no matter what you feed it, while the 
>perceived loudness of a loud sound varies according to its harmonic 
>content. So I guess it's somewhat subjective what sound source gives the 
>loudest apparent output. An [osc~] multiplied by 5555 will sound louder 
>but it won't actually be louder than an osc multiplied by one (the 
>amplitude at the output will still be between 1 and -1).
>The idea is to set the master volume so that the loudest sound you can 
>make will not break anything, whether speakers or ears or inner peace. 
>The easiest way to do that is to play the loudest sound first and adjust 
>the volume so that it's loud but not too loud. Then everything else you 
>do will be quieter than that.
>
>Martin
>
>
>>     ------------------------------------------------------------------------
>>     *From:* tim vets <timvets at gmail.com>
>>     *To:* Martin <martin.peach at sympatico.ca>
>>     *Cc:* pd-list at iem.at
>>     *Sent:* Tuesday, August 23, 2011 6:13 PM
>>     *Subject:* Re: [PD] making puredata headphone-safe
>>
>>
>>
>>     2011/8/23 Martin <martin.peach at sympatico.ca
>>     <mailto:martin.peach at sympatico.ca>>
>>
>>         On 23/08/11 03:29 PM, Stephen Lavelle wrote:
>>
>>             I've managed to hurt my ears twice over the past two days
>>             when using PD w/ headphones. Even at lowest system volumes,
>>             it seems that Terrible Things can happen. Are there any
>>             precautions that I can take to make it feel less like I'm
>>             taking my life into my hands when I have to use headphones?
>>
>>
>>
>>
>>         Try making a [noise~] connected directly to a [dac~] and set the
>>         headphone volume so you can live with that. Nothing will ever be
>>         louder than that.
>>
>>         Martin
>>
>>     [osc~ 5555] may not be louder than [noise~], but definitely more
>>     painful...no?
>>
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