Re: Play Command Error
- To: mathgroup at smc.vnet.net
- Subject: [mg105577] Re: Play Command Error
- From: "Nasser M. Abbasi" <nma at 12000.org>
- Date: Thu, 10 Dec 2009 04:54:48 -0500 (EST)
- References: <hfnutl$g9e$1@smc.vnet.net>
- Reply-to: "Nasser M. Abbasi" <nma at 12000.org>
----- Original Message -----
From: "BenT" <brtubb at pdmusic.org>
Newsgroups: comp.soft-sys.math.mathematica
Sent: Wednesday, December 09, 2009 4:41 AM
Subject: [mg105577] Play Command Error
> I'm using v7. Please try this code:
>
> ClearAll["Global`*"]
>
> notes=Table[N[(440/64)*2^((n+3)/12)],{n,60,72,1}];
>
> Play[Sin[# 2 Pi t]&/@notes ,{t,0,.5}]
>
> Sound::ssnm: A good PlayRange could not be found since most of the
> samples are not evaluating to machine-size real numbers. >>
>
> I cannot understand why this error message is produced. Can anyone
> help? The values for the "notes" are certainly machine-sized! What's
> causing the Sin[# # Pi t] expression to NOT produce valid resuls?
>
> --- Benjamin Tubb
>
I never used Play before. But I was wondering if you meant to add the tones
before playing them? like this
notes = Table[N[(440/64)*2^((n + 3)/12)], {n, 60, 72, 1}];
f = Total[(Sin[#1*2*Pi*t] & ) /@ notes]
Play[f, {t, 0, 0.5}]
--Nasser